Tag Archives: stage vacuum pump

China best Multistage Stage Variable Pitch Air Cooled Oil Electrical Wet Rotary Screw Vane Vacuum Pump for Vacuum Industry vacuum pump brakes

Product Description

                                       EXTERIOR DESIGN                                                                INTERIOR DESIGN

ZheJiang CHINAMFG Machinery Manufacturing Co. , Ltd. is located in HangZhou, ZheJiang .CHINAMFG is a comprehensive screw air compressor

manufacturer that engaged in R & D, design, production and sales. It has a plant of 20,000 square meters, including a large production workshop,

a comprehensive first-class exhibition hall and a testing laboratory.

CHINAMFG has excellent mechanical engineering designers, an experienced staff team and a professional management team. The production

concept focuses on energy-saving and is committed to perfecting and improving the technological process in order to get the core technology

of super frequency energy-saving, achieving the characteristics of mute, durability, power saving and safety.

The company has 9 series of products with multiple models. Including Fixed speed air compressor, PM VSD air compressor, PM VSD

two-stage air compressor, 4-in-1 air compressor, Oil free water lubrcating air compressor, Diesel portable screw air compressor, Electric

portable screw air compressor, Air dryer, Adsorption machine and the matching spare parts. CHINAMFG adheres to the business philosophy of

cooperation and mutual benefit to provide a one-stop service for every customer!

CHINAMFG air compressors not only cover the domestic market but also are exported to more than 20 countries and regions such as South

Africa, Australia, Thailand, Russia, Argentina, Canada and so on. CHINAMFG products have won a good reputation from users for their excellent

quality and style. The company has always adhered to the concept of quality first, service first and dedication to providing every customer with

excellent products and meticulous after-sales service!

CHINAMFG warmly welcome customers to visit our factory and establish a wide range of cooperation!

Frequency Asked Question:

Q1: Are you factory or trade company?  
A1: We are factory.

Q2: What the exactly address of your factory? 
A2: Our Factory is Located in Xihu (West Lake) Dis. CountyHangZhou CityZheJiang  Province, China.

Q3: Will you provide spare parts of your products? 
A3: Yes, We provide all parts to customer, so you can do repair or maintenance without trouble.

Q4: Can you accept OEM orders? 
A4: Yes, with professional design team, OEM orders are highly welcome.

Q5: How long will you take to arrange production?
A5: Immediate delivery for stock products.380V 50HZ we can delivery the goods within 3-15 days. Other voltage or other color we will delivery within 25-30 days.

Q6: Warranty terms of your machine?
A6Two years warranty for the machine and technical support always according to your needs.

Q7: Can you provide the best price?
A7:According to your order, we will provide you the best price. /* January 22, 2571 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1

After-sales Service: 24 Hours
Warranty: 2 Year, 2 Year
Lubrication Style: Oil-free
Cooling System: Air Cooling
Power Source: AC Power
Cylinder Position: Horizontal
Customization:
Available

|

vacuum pump

What Is the Role of Vacuum Pumps in Semiconductor Manufacturing?

Vacuum pumps play a critical role in semiconductor manufacturing processes. Here’s a detailed explanation:

Semiconductor manufacturing involves the production of integrated circuits (ICs) and other semiconductor devices used in various electronic applications. Vacuum pumps are used extensively throughout the semiconductor manufacturing process to create and maintain the required vacuum conditions for specific manufacturing steps.

Here are some key roles of vacuum pumps in semiconductor manufacturing:

1. Deposition Processes: Vacuum pumps are used in deposition processes such as physical vapor deposition (PVD) and chemical vapor deposition (CVD). These processes involve depositing thin films of materials onto semiconductor wafers to create various layers and patterns. Vacuum pumps help create a low-pressure environment necessary for precise control of the deposition process, ensuring uniform and high-quality film formation.

2. Etching and Cleaning: Vacuum pumps are utilized in etching and cleaning processes, which involve the removal of specific layers or contaminants from semiconductor wafers. Dry etching techniques, such as plasma etching and reactive ion etching, require a vacuum environment to facilitate the ionization and removal of material. Vacuum pumps aid in creating the necessary low-pressure conditions for efficient etching and cleaning processes.

3. Ion Implantation: Ion implantation is a process used to introduce impurities into specific regions of a semiconductor wafer to modify its electrical properties. Vacuum pumps are used to evacuate the ion implantation chamber, creating the required vacuum environment for accurate and controlled ion beam acceleration and implantation.

4. Wafer Handling and Transfer: Vacuum pumps are employed in wafer handling and transfer systems. These systems utilize vacuum suction to securely hold and manipulate semiconductor wafers during various manufacturing steps, such as loading and unloading from process chambers, robotic transfer between tools, and wafer alignment.

5. Load Lock Systems: Load lock systems are used to transfer semiconductor wafers between atmospheric conditions and the vacuum environment of process chambers. Vacuum pumps are integral components of load lock systems, creating and maintaining the vacuum conditions necessary for wafer transfer while minimizing contamination risks.

6. Metrology and Inspection: Vacuum pumps are utilized in metrology and inspection tools used for characterizing semiconductor devices. These tools, such as scanning electron microscopes (SEMs) and focused ion beam (FIB) systems, often operate in a vacuum environment to enable high-resolution imaging and accurate analysis of semiconductor structures and defects.

7. Leak Detection: Vacuum pumps are employed in leak detection systems to identify and locate leaks in vacuum chambers, process lines, and other components. These systems rely on vacuum pumps to evacuate the system and then monitor for any pressure rise, indicating the presence of leaks.

8. Cleanroom Environment Control: Semiconductor manufacturing facilities maintain cleanroom environments to prevent contamination during the fabrication process. Vacuum pumps are used in the design and operation of the cleanroom ventilation and filtration systems, helping to maintain the required air cleanliness levels by removing particulates and maintaining controlled air pressure differentials.

Vacuum pumps used in semiconductor manufacturing processes are often specialized to meet the stringent requirements of the industry. They need to provide high vacuum levels, precise control, low contamination levels, and reliability for continuous operation.

Overall, vacuum pumps are indispensable in semiconductor manufacturing, enabling the creation of the necessary vacuum conditions for various processes, ensuring the production of high-quality semiconductor devices.

vacuum pump

What Is the Role of Vacuum Pumps in Pharmaceutical Manufacturing?

Vacuum pumps play a crucial role in various aspects of pharmaceutical manufacturing. Here’s a detailed explanation:

Vacuum pumps are extensively used in pharmaceutical manufacturing processes to support a range of critical operations. Some of the key roles of vacuum pumps in pharmaceutical manufacturing include:

1. Drying and Evaporation: Vacuum pumps are employed in drying and evaporation processes within the pharmaceutical industry. They facilitate the removal of moisture or solvents from pharmaceutical products or intermediates. Vacuum drying chambers or evaporators utilize vacuum pumps to create low-pressure conditions, which lower the boiling points of liquids, allowing them to evaporate at lower temperatures. By applying vacuum, moisture or solvents can be efficiently removed from substances such as active pharmaceutical ingredients (APIs), granules, powders, or coatings, ensuring the desired product quality and stability.

2. Filtration and Filtrate Recovery: Vacuum pumps are used in filtration processes for the separation of solid-liquid mixtures. Vacuum filtration systems typically employ a filter medium, such as filter paper or membranes, to retain solids while allowing the liquid portion to pass through. By applying vacuum to the filtration apparatus, the liquid is drawn through the filter medium, leaving behind the solids. Vacuum pumps facilitate efficient filtration, speeding up the process and improving product quality. Additionally, vacuum pumps can aid in filtrate recovery by collecting and transferring the filtrate for further processing or reuse.

3. Distillation and Purification: Vacuum pumps are essential in distillation and purification processes within the pharmaceutical industry. Distillation involves the separation of liquid mixtures based on their different boiling points. By creating a vacuum environment, vacuum pumps lower the boiling points of the components, allowing them to vaporize and separate more easily. This enables efficient separation and purification of pharmaceutical compounds, including the removal of impurities or the isolation of specific components. Vacuum pumps are utilized in various distillation setups, such as rotary evaporators or thin film evaporators, to achieve precise control over the distillation conditions.

4. Freeze Drying (Lyophilization): Vacuum pumps are integral to the freeze drying process, also known as lyophilization. Lyophilization is a dehydration technique that involves the removal of water or solvents from pharmaceutical products while preserving their structure and integrity. Vacuum pumps create a low-pressure environment in freeze drying chambers, allowing the frozen product to undergo sublimation. During sublimation, the frozen water or solvent directly transitions from the solid phase to the vapor phase, bypassing the liquid phase. Vacuum pumps facilitate efficient and controlled sublimation, leading to the production of stable, shelf-stable pharmaceutical products with extended shelf life.

5. Tablet and Capsule Manufacturing: Vacuum pumps are utilized in tablet and capsule manufacturing processes. They are involved in the creation of vacuum within tablet presses or capsule filling machines. By applying vacuum, the air is removed from the die cavity or capsule cavity, allowing for the precise filling of powders or granules. Vacuum pumps contribute to the production of uniform and well-formed tablets or capsules by ensuring accurate dosing and minimizing air entrapment, which can affect the final product quality.

6. Sterilization and Decontamination: Vacuum pumps are employed in sterilization and decontamination processes within the pharmaceutical industry. Autoclaves and sterilizers utilize vacuum pumps to create a vacuum environment before introducing steam or chemical sterilants. By removing air or gases from the chamber, vacuum pumps assist in achieving effective sterilization or decontamination by enhancing the penetration and distribution of sterilants. Vacuum pumps also aid in the removal of sterilants and residues after the sterilization process is complete.

It’s important to note that different types of vacuum pumps, such as rotary vane pumps, dry screw pumps, or liquid ring pumps, may be utilized in pharmaceutical manufacturing depending on the specific requirements of the process and the compatibility with pharmaceutical products.

In summary, vacuum pumps play a vital role in various stages of pharmaceutical manufacturing, including drying and evaporation, filtration and filtrate recovery, distillation and purification, freeze drying (lyophilization), tablet and capsule manufacturing, as well as sterilization and decontamination. By enabling efficient and controlled processes, vacuum pumps contribute to the production of high-quality pharmaceutical products, ensuring the desired characteristics, stability, and safety.

vacuum pump

What Industries Commonly Rely on Vacuum Pump Technology?

Vacuum pump technology finds applications in various industries where creating and controlling vacuum or low-pressure environments is crucial. Here’s a detailed explanation:

1. Manufacturing and Production: Vacuum pumps are extensively used in manufacturing and production processes across multiple industries. They are employed for tasks such as vacuum molding, vacuum packaging, vacuum degassing, vacuum drying, and vacuum distillation. Industries like automotive, aerospace, electronics, pharmaceuticals, and food processing rely on vacuum pump technology to achieve precise and controlled manufacturing conditions.

2. Chemical and Pharmaceutical: The chemical and pharmaceutical industries heavily rely on vacuum pumps for numerous applications. These include solvent recovery, vacuum filtration, vacuum drying, distillation, crystallization, and evaporation. Vacuum pumps enable these industries to carry out critical processes under reduced pressure, ensuring efficient separation, purification, and synthesis of various chemical compounds and pharmaceutical products.

3. Semiconductor and Electronics: The semiconductor and electronics industries extensively use vacuum pumps for manufacturing microchips, electronic components, and electronic devices. Vacuum pumps are crucial in processes such as physical vapor deposition (PVD), chemical vapor deposition (CVD), etching, ion implantation, and sputtering. These processes require controlled vacuum conditions to ensure precise deposition, surface modification, and contamination-free manufacturing.

4. Research and Development: Vacuum pump technology is integral to research and development activities across scientific disciplines. It supports experiments and investigations in fields such as physics, chemistry, materials science, biology, and environmental science. Vacuum pumps facilitate processes like freeze drying, vacuum distillation, vacuum evaporation, vacuum spectroscopy, and creating controlled atmospheric conditions for studying various phenomena.

5. Food and Beverage: The food and beverage industry relies on vacuum pumps for packaging and preservation purposes. Vacuum sealing is used to extend the shelf life of food products by removing air and creating a vacuum-sealed environment that inhibits spoilage and maintains freshness. Vacuum pumps are also used in processes like freeze drying, vacuum concentration, and vacuum cooling.

6. Oil and Gas: In the oil and gas industry, vacuum pumps play a role in various applications. They are used for crude oil vacuum distillation, vacuum drying, vapor recovery, gas compression, and gas stripping processes. Vacuum pumps help maintain optimal conditions during oil refining, gas processing, and petrochemical manufacturing.

7. Environmental and Waste Management: Vacuum pumps are employed in environmental and waste management applications. They are used for tasks such as soil vapor extraction, groundwater remediation, landfill gas recovery, and wastewater treatment. Vacuum pumps facilitate the removal and containment of gases, vapors, and pollutants, contributing to environmental protection and sustainable waste management.

8. Medical and Healthcare: The medical and healthcare sectors utilize vacuum pumps for various purposes. They are used in medical equipment such as vacuum-assisted wound therapy devices, vacuum-based laboratory analyzers, and vacuum suction systems in hospitals and clinics. Vacuum pumps are also used in medical research, pharmaceutical production, and medical device manufacturing.

9. Power Generation: Vacuum pumps play a role in power generation industries, including nuclear power plants and thermal power plants. They are used for steam condensation, turbine blade cooling, vacuum drying during transformer manufacturing, and vacuum systems for testing and maintenance of power plant equipment.

10. HVAC and Refrigeration: The HVAC (Heating, Ventilation, and Air Conditioning) and refrigeration industries rely on vacuum pumps for system installation, maintenance, and repair. Vacuum pumps are used to evacuate air and moisture from refrigerant lines and HVAC systems, ensuring optimal system performance and efficiency.

These are just a few examples of industries that commonly rely on vacuum pump technology. The versatility and wide-ranging applications of vacuum pumps make them indispensable tools across numerous sectors, enabling precise control over vacuum conditions, efficient manufacturing processes, and scientific investigations.

China best Multistage Stage Variable Pitch Air Cooled Oil Electrical Wet Rotary Screw Vane Vacuum Pump for Vacuum Industry   vacuum pump brakesChina best Multistage Stage Variable Pitch Air Cooled Oil Electrical Wet Rotary Screw Vane Vacuum Pump for Vacuum Industry   vacuum pump brakes
editor by Dream 2024-05-17

China Hot selling Electric Low Pressure Two Stage Industrial Water Ring Vacuum Pump vacuum pump engine

Product Description

Electric Low Pressure Two Stage Industrial Water Ring Vacuum Pump

Product Description

 

 

The 2SK water ring vacuum pump is widely used in industries such as chemical machinery, light industry, medicine, and food to extract air or other gases that are insoluble in water, do not contain CZPT particles, and are non corrosive, in order to form a certain degree of vacuum in closed systems. Commonly used in processes such as vacuum evaporation, vacuum concentration, vacuum drying, vacuum filtration, and vacuum feeding. This series of pumps has the characteristics of compact structure, reliable use, easy installation and disassembly, and simple maintenance.

Product Parameters

 

Model

2SK-1.5

2SK-3

2SK-6

2SK-12

2SK-20

2SK-30

Pumping Speed (m3 /min)

1.5

3

6

12

20

30

Motor Power(Kw)

4

7.5

15

22

37

55

Nominal Motor speed(rpm)

1430

1450

1460

980

740

740

flow of supiying water(m³/h)

10~15

15~20

25~35

40~50

60~80

70~90

Pumping size(mm)

1105X400X405

1315X460X525

1580X600X630

2052X430X857

2345X720X1100

2670X780X1100

weight(kg)

200

295

480

1000

2100

2500

Type of protection(IP)

55

55

55

55

55

55

Nominal Motor current(A)

8.8

15.4

30.1

44.7

77.8

111.2

Detailed Photos

 

 

Company Profile

HangZhou Sifang Vacuum Equipment Co., Ltd. specializes in the production of vacuum furnaces, vacuum pumps, steel drums and other products.”Sifang” is the registered trademark of the company’s products.

our company is 1 professional vacuum equipment manufacturer in HangZhou, China. We specialize in vacuum pumps, furnaces, systems and components for diverse applications. We produce rotary vane vacuum pumps, water ring vacuum pumps, reciprocating vacuum pumps, roots vacuum pump units, vacuum heat treatment furnaces, vacuum aluminum brazing furnaces, high temperature brazing fur- naces, vacuum sintering furnaces, monocrystalline silicon furnaces and other products. All these vacuum equipment are widely used in aviation, aerospace, military, railway, automobile, machinery, mold, electronics, metallurgy, scientific research and other fields.

We have professional engineer support, high efficiency sales team and competitive price superiority, and attract customers from all over the world, we export to over 40 countries, including Europe, Poland, Serbia, Turkey, Russia, USA, Mexico, Brazil, India, Thailand, Middle east and South Africa.

After several years’ development, We have achieved great progress, we are equipped with the AutomaticCNCmachines and multi-func- tion testing machines. Our R&D department provide the strong tech- nical support and enable us to receive some 0 E M, O D M projects. We can produce at least 3000 sets vacuum equipment per year. With our innovative and energy-efficient vacuum equipment that is put to work in a multitude of manufacturing and process applica- tions, we also offer you a comprehensive suite of CZPT ser- vices to complement our products.

FAQ

1.Q: Are you a factory or trading company?
A: We are a factory and we have professional team of workers,Designers and inspectors.

2.Q:Do you accept custom?
A:Of course.We have professional teams who make your designs,photos,imagines and OEM orders into real production.

3.Q:What’s your advantages?
A: Quick response to your enquiry,
High quality control,
Reasonable price,
Timely delivery,
Excellent after-sales service,
OEM/ODM are welcome

4.Q:What’s your shipping terms?
A:If you need to ship by air,we can use DHL,UPS,FedEx,TNT or EMS.If you need to ship by sea,we have many good forwarders to work with,they can provide the best price for you.
  /* January 22, 2571 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1

After-sales Service: Online Support
Warranty: 1 Year
Oil or Not: Oil
Structure: Vacuum Pump
Exhauster Method: Entrapment Vacuum Pump
Vacuum Degree: Vacuum
Customization:
Available

|

Vacuum Pump

How to install a vacuum pump

A vacuum pump creates a relative vacuum within a sealed volume by drawing gas molecules from the sealed volume. Vacuum pumps can be used in a variety of industrial applications. They also offer various lubrication options. If you are considering purchasing, please understand its functions and features before purchasing.

How it works

The working principle of a vacuum pump is called gas transfer. The principle can be further divided into two basic categories: positive displacement and momentum transfer. At high pressure and moderate vacuum, gas molecules collide and move and create a viscous flow. At higher vacuum levels, gas molecules separate to create molecular or transitional flows.
Another principle of vacuum pumps is fluid-tightness. There are two main types of seals: rotary seals and screw seals. Rotary seals prevent liquid leakage, while screw seals only allow liquids to flow out at higher pressures. Some pumps may not use the third seal.
The flow rate of the vacuum pump determines the machine’s ability to pump a certain amount of material. A higher pumping speed will shorten the drain time. Therefore, the mass flow of the vacuum pump must be carefully considered. The speed and type of vacuum must also be considered.
The working principle of a vacuum pump is to push gas molecules from a high-pressure state to a low-pressure state. This creates a partial vacuum. There are many different types of vacuum pumps, each with different functions. Some are mechanical, some are chemical. In either case, their function is the same: to create a partial or complete vacuum. Vacuum pumps use a variety of technologies and are sized according to the application. Proper sizing is critical for optimum efficiency.
Gas transfer pumps use the same principles as vacuum pumps but use different technology. One of the earliest examples is the Archimedes spiral. Its structure consists of a single screw inside a hollow cylinder. More modern designs use double or triple screws. The rotation of the screw causes gas molecules to be trapped in the cavity between the screw and the housing. The fluid is then discharged at slightly above atmospheric pressure. This difference is called the compression ratio.
Another type of vacuum pump is a diffusion pump. Its main use is industrial vacuum processing. It is used in applications such as mass spectrometry, nanotechnology and analytical instrumentation. These pumps are generally inexpensive to purchase and operate.

Apply

Vacuum pumps are essential for many scientific and industrial processes. They are used in the production of vacuum tubes, CRTs, lamps and semiconductor processing. They can also be used to support mechanical equipment. For example, they can be mounted on the engine of a motor vehicle. Likewise, they can be used to power hydraulic components of aircraft. Among other uses, the vacuum pump helps calibrate the gyroscope.
Vacuum pumps are widely used in the pharmaceutical industry and are one of the largest users of this technology. They help deal with hazardous materials and eliminate waste quickly. They are also used in power jets, dump fuel tanks and rear doors, among others. However, they are sensitive to contamination and should only be used in environments where leaks can be prevented. Therefore, choosing the right fluid for the application is very important.
The most popular type of vacuum pump is the rotary vane pump. These pumps are known for their high pumping speed and low pressure. Their efficient pumping capacity allows them to reach pressures below 10-6 bar. Additionally, they are usually oil-sealed and have excellent vacuuming capabilities.
Vacuum pumps are often used to remove air from closed systems. They create a vacuum by reducing the density of the air in the compressed space. This is done by using the mechanical force energy generated by the rotating shaft. When the pump is under pressure, it converts this energy into pneumatic power. When the pressure is different, the energy produced depends on the volume of the gas and the pressure difference between the inner and outer atmospheres.
Vacuum pumps are also used in the manufacture of solar cells. They are used in the manufacture of solar cells, including ingot casting processes as well as cell and module processes. The design of the vacuum system plays an important role in reducing the cost of the process, thus making it profitable. Due to their low maintenance costs, they are an invaluable tool for making solar cells.
Vacuum pumps are widely used in many applications. In addition to industrial and research uses, they are also used in water remediation.
Vacuum Pump

Oil Lubrication Option

Vacuum pumps are available in a variety of oil lubrication options. Choosing the right lubricant can help protect your vacuum pump and maximize its performance. Different base oils may contain different additives, such as antioxidants, and some contain additional additives for specific purposes. You should choose an oil with the right concentration of these additives for optimal lubrication of your vacuum pump.
Vacuum pumps are usually lubricated with paraffinic mineral oil. However, this type of lubricant evaporates as the temperature increases. To minimize evaporative losses, choose a lubricant with low vapor pressure. Also, you should choose lubricants that are resistant to extreme temperatures. Extreme temperatures can put extra stress on the oil and can even significantly shorten the life of the oil.
In terms of viscosity, synthetic oils are the best choice for vacuum pumps. These types of oils are designed to resist gas dissolution and are more resistant to corrosion. Therefore, synthetic oils are ideal for handling aggressive substances. Whether or not your pump needs lubrication, choosing a quality product is important.
The vacuum pump oil should be changed periodically according to the manufacturer’s recommendations. If you use a filter, you should also change the oil as soon as the filter reaches the end of its life. Unplanned oil changes will eventually cause the vacuum pump to not reach its maximum vacuum capacity.
You can buy vacuum pump oil from vacuum pump manufacturers or other suppliers. These options are available in a variety of sizes, and labels can be customized. The oil should be designed for the pump. However, you should check the manufacturer’s recommendations to avoid buying the wrong type.
If you choose to use a synthetic oil, it is important to use a good quality oil. It helps the pump work more efficiently and prolong its life.
Vacuum Pump

Install

After choosing a suitable location, the next step is to install the pump. First, place the pump on a flat surface. Then, screw the pump onto the motor body above the check valve. Make sure the accessories are wrapped with sealing tape and secured with screws. The direction of gas inflow and outflow is indicated by arrows on the pump. The direction of rotation around the pump is also shown.
During commissioning, check the operation of each part of the pump. If the pump is equipped with a pipe connection, the pipe should be the same size and shape as the pump flange. Also, make sure that the piping does not cause any pressure drop. In addition, the first three weeks of operation require the installation of protective nets at the suction ports.
When selecting a pump, consider the back pressure of the system. Too much back pressure will affect the capacity of the vacuum pump. Also, check the temperature of the seal. If the temperature is too high, the seal may be damaged. It could also be due to a partially closed valve in the recirculation line or a clogged filter. Circulation pumps and heat exchangers should also be checked for fouling.
The vacuum pump is usually installed in the chassis area of ​​the car. They can be mounted next to the engine or on a lower support frame. They are usually fastened to the bracket using suitable shock absorbers and isolating elements. However, before installing the vacuum pump, be sure to check the vacuum pump’s wiring harness before connecting it to the vehicle.
In many experimental setups, a vacuum pump is essential. However, improperly installed vacuum pumps can expose users to harmful vapors and chemicals. Appropriate plugs and belt guards should be installed to prevent any accidental chemical exposure. It is also important to install a fume hood for the pump.
In most cases, vacuum pumps come with installation manuals and instructions. Some manufacturers even offer start-up assistance if needed.

China Hot selling Electric Low Pressure Two Stage Industrial Water Ring Vacuum Pump   vacuum pump engine	China Hot selling Electric Low Pressure Two Stage Industrial Water Ring Vacuum Pump   vacuum pump engine
editor by Dream 2024-05-15

China Best Sales Industrial Oilless Double Stage Rotary Vane Vacuum Pump for Engineering Industry vacuum pump diy

Product Description

Industrial Oilless Double Stage Rotary Vane Vacuum Pump for Engineering Industry

 

Product Description

XD Rotary Vane Vacuum pumps are widely used in various types of food vacuum packaging, paper conveying in the printing industry, vacuum suction molding in the rubber and plastic industry, vacuum impregnation treatment of various castings, vacuum fixtures in the mechanical industry, vacuum suction in hospital operating rooms, vacuum power testing, etc.

Product Parameters

 

Model

XD-571

XD-571

XD-040

XD-063

XD-100

XD-160

XD-250

Pumping speed(L/S)

10

20

40

63

100

160

250

Ultimate Pres-(≤Pa)

200

 

Motor Power(kw)

0.37

0.75

1.5

1.5

3

4

7.5

Rotational (rpm)

1400

2800

1400

1400

1400

1400

1400

Size (cm)

46.5X23.2X20

47.3X23.2X20

48X23.2X20

65X43X29.5

72X43X29.5

85.8X49.5X43.5

98X56X44

Weight (Kg)

16

18

58

62

89

145

200

Type of protection(IP)

55

55

55

55

55

55

55

Detailed Photos

 

Company Profile

HangZhou Sifang Vacuum Equipment Co., Ltd. specializes in the production of vacuum furnaces, vacuum pumps, steel drums and other products.”Sifang” is the registered trademark of the company’s products.

our company is 1 professional vacuum equipment manufacturer in HangZhou, China. We specialize in vacuum pumps, furnaces, systems and components for diverse applications. We produce rotary vane vacuum pumps, water ring vacuum pumps, reciprocating vacuum pumps, roots vacuum pump units, vacuum heat treatment furnaces, vacuum aluminum brazing furnaces, high temperature brazing fur- naces, vacuum sintering furnaces, monocrystalline silicon furnaces and other products. All these vacuum equipment are widely used in aviation, aerospace, military, railway, automobile, machinery, mold, electronics, metallurgy, scientific research and other fields.

We have professional engineer support, high efficiency sales team and competitive price superiority, and attract customers from all over the world, we export to over 40 countries, including Europe, Poland, Serbia, Turkey, Russia, USA, Mexico, Brazil, India, Thailand, Middle east and South Africa.

After several years’ development, We have achieved great progress, we are equipped with the AutomaticCNCmachines and multi-func- tion testing machines. Our R&D department provide the strong tech- nical support and enable us to receive some 0 E M, O D M projects. We can produce at least 3000 sets vacuum equipment per year. With our innovative and energy-efficient vacuum equipment that is put to work in a multitude of manufacturing and process applica- tions, we also offer you a comprehensive suite of CHINAMFG ser- vices to complement our products.

FAQ

1.Q: Are you a factory or trading company?
A: We are a factory and we have professional team of workers,Designers and inspectors.

2.Q:Do you accept custom?
A:Of course.We have professional teams who make your designs,photos,imagines and OEM orders into real production.

3.Q:What’s your advantages?
A: Quick response to your enquiry,
High quality control,
Reasonable price,
Timely delivery,
Excellent after-sales service,
OEM/ODM are welcome

4.Q:What’s your shipping terms?
A:If you need to ship by air,we can use DHL,UPS,FedEx,TNT or EMS.If you need to ship by sea,we have many good forwarders to work with,they can provide the best price for you.

  /* January 22, 2571 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1

After-sales Service: Online Support
Warranty: 1 Year
Oil or Not: Oil
Structure: Vacuum Pump
Exhauster Method: Entrapment Vacuum Pump
Vacuum Degree: Vacuum
Customization:
Available

|

vacuum pump

What Are the Advantages of Using Oil-Sealed Vacuum Pumps?

Oil-sealed vacuum pumps offer several advantages in various applications. Here’s a detailed explanation:

1. High Vacuum Performance: Oil-sealed vacuum pumps are known for their ability to achieve high levels of vacuum. They can create and maintain deep vacuum levels, making them suitable for applications that require a low-pressure environment. The use of oil as a sealing and lubricating medium helps in achieving efficient vacuum performance.

2. Wide Operating Range: Oil-sealed vacuum pumps have a wide operating range, allowing them to handle a broad spectrum of vacuum levels. They can operate effectively in both low-pressure and high-vacuum conditions, making them versatile for different applications across various industries.

3. Efficient and Reliable Operation: These pumps are known for their reliability and consistent performance. The oil-sealed design provides effective sealing, preventing air leakage and maintaining a stable vacuum level. They are designed to operate continuously for extended periods without significant performance degradation, making them suitable for continuous industrial processes.

4. Contamination Handling: Oil-sealed vacuum pumps are effective in handling certain types of contaminants that may be present in the process gases or air being evacuated. The oil acts as a barrier, trapping and absorbing certain particulates, moisture, and chemical vapors, preventing them from reaching the pump mechanism. This helps protect the pump internals from potential damage and contributes to the longevity of the pump.

5. Thermal Stability: The presence of oil in these pumps helps in dissipating heat generated during operation, contributing to their thermal stability. The oil absorbs and carries away heat, preventing excessive temperature rise within the pump. This thermal stability allows for consistent performance even during prolonged operation and helps protect the pump from overheating.

6. Noise Reduction: Oil-sealed vacuum pumps generally operate at lower noise levels compared to other types of vacuum pumps. The oil acts as a noise-damping medium, reducing the noise generated by the moving parts and the interaction of gases within the pump. This makes them suitable for applications where noise reduction is desired, such as laboratory environments or noise-sensitive industrial settings.

7. Versatility: Oil-sealed vacuum pumps are versatile and can handle a wide range of gases and vapors. They can effectively handle both condensable and non-condensable gases, making them suitable for diverse applications in industries such as chemical processing, pharmaceuticals, food processing, and research laboratories.

8. Cost-Effective: Oil-sealed vacuum pumps are often considered cost-effective options for many applications. They generally have a lower initial cost compared to some other types of high-vacuum pumps. Additionally, the maintenance and operating costs are relatively lower, making them an economical choice for industries that require reliable vacuum performance.

9. Simplicity and Ease of Maintenance: Oil-sealed vacuum pumps are relatively simple in design and easy to maintain. Routine maintenance typically involves monitoring oil levels, changing the oil periodically, and inspecting and replacing worn-out parts as necessary. The simplicity of maintenance procedures contributes to the overall cost-effectiveness and ease of operation.

10. Compatibility with Other Equipment: Oil-sealed vacuum pumps are compatible with various process equipment and systems. They can be easily integrated into existing setups or used in conjunction with other vacuum-related equipment, such as vacuum chambers, distillation systems, or industrial process equipment.

These advantages make oil-sealed vacuum pumps a popular choice in many industries where reliable, high-performance vacuum systems are required. However, it’s important to consider specific application requirements and consult with experts to determine the most suitable type of vacuum pump for a particular use case.

vacuum pump

Can Vacuum Pumps Be Used for Chemical Distillation?

Yes, vacuum pumps are commonly used in chemical distillation processes. Here’s a detailed explanation:

Chemical distillation is a technique used to separate or purify components of a mixture based on their different boiling points. The process involves heating the mixture to evaporate the desired component and then condensing the vapor to collect the purified substance. Vacuum pumps play a crucial role in chemical distillation by creating a reduced pressure environment, which lowers the boiling points of the components and enables distillation at lower temperatures.

Here are some key aspects of using vacuum pumps in chemical distillation:

1. Reduced Pressure: By creating a vacuum or low-pressure environment in the distillation apparatus, vacuum pumps lower the pressure inside the system. This reduction in pressure lowers the boiling points of the components, allowing distillation to occur at temperatures lower than their normal boiling points. This is particularly useful for heat-sensitive or high-boiling-point compounds that would decompose or become thermally degraded at higher temperatures.

2. Increased Boiling Point Separation: Vacuum distillation increases the separation between the boiling points of the components, making it easier to achieve a higher degree of purification. In regular atmospheric distillation, the boiling points of some components may overlap, leading to less effective separation. By operating under vacuum, the boiling points of the components are further apart, improving the selectivity and efficiency of the distillation process.

3. Energy Efficiency: Vacuum distillation can be more energy-efficient compared to distillation under atmospheric conditions. The reduced pressure lowers the required temperature for distillation, resulting in reduced energy consumption and lower operating costs. This is particularly advantageous when dealing with large-scale distillation processes or when distilling heat-sensitive compounds that require careful temperature control.

4. Types of Vacuum Pumps: Different types of vacuum pumps can be used in chemical distillation depending on the specific requirements of the process. Some commonly used vacuum pump types include:

– Rotary Vane Pumps: Rotary vane pumps are widely used in chemical distillation due to their ability to achieve moderate vacuum levels and handle various gases. They work by using rotating vanes to create chambers that expand and contract, enabling the pumping of gas or vapor.

– Diaphragm Pumps: Diaphragm pumps are suitable for smaller-scale distillation processes. They use a flexible diaphragm that moves up and down to create a vacuum and compress the gas or vapor. Diaphragm pumps are often oil-free, making them suitable for applications where avoiding oil contamination is essential.

– Liquid Ring Pumps: Liquid ring pumps can handle more demanding distillation processes and corrosive gases. They rely on a rotating liquid ring to create a seal and compress the gas or vapor. Liquid ring pumps are commonly used in chemical and petrochemical industries.

– Dry Screw Pumps: Dry screw pumps are suitable for high-vacuum distillation processes. They use intermeshing screws to compress and transport gas or vapor. Dry screw pumps are known for their high pumping speeds, low noise levels, and oil-free operation.

Overall, vacuum pumps are integral to chemical distillation processes as they create the necessary reduced pressure environment that enables distillation at lower temperatures. By using vacuum pumps, it is possible to achieve better separation, improve energy efficiency, and handle heat-sensitive compounds effectively. The choice of vacuum pump depends on factors such as the required vacuum level, the scale of the distillation process, and the nature of the compounds being distilled.

vacuum pump

What Is the Purpose of a Vacuum Pump in an HVAC System?

In an HVAC (Heating, Ventilation, and Air Conditioning) system, a vacuum pump serves a crucial purpose. Here’s a detailed explanation:

The purpose of a vacuum pump in an HVAC system is to remove air and moisture from the refrigerant lines and the system itself. HVAC systems, particularly those that rely on refrigeration, operate under specific pressure and temperature conditions to facilitate the transfer of heat. To ensure optimal performance and efficiency, it is essential to evacuate any non-condensable gases, air, and moisture from the system.

Here are the key reasons why a vacuum pump is used in an HVAC system:

1. Removing Moisture: Moisture can be present within an HVAC system due to various factors, such as system installation, leaks, or improper maintenance. When moisture combines with the refrigerant, it can cause issues like ice formation, reduced system efficiency, and potential damage to system components. A vacuum pump helps remove moisture by creating a low-pressure environment, which causes the moisture to boil and turn into vapor, effectively evacuating it from the system.

2. Eliminating Air and Non-Condensable Gases: Air and non-condensable gases, such as nitrogen or oxygen, can enter an HVAC system during installation, repair, or through leaks. These gases can hinder the refrigeration process, affect heat transfer, and decrease system performance. By using a vacuum pump, technicians can evacuate the air and non-condensable gases, ensuring that the system operates with the designed refrigerant and pressure levels.

3. Preparing for Refrigerant Charging: Prior to charging the HVAC system with refrigerant, it is crucial to create a vacuum to remove any contaminants and ensure the system is clean and ready for optimal refrigerant circulation. By evacuating the system with a vacuum pump, technicians ensure that the refrigerant enters a clean and controlled environment, reducing the risk of system malfunctions and improving overall efficiency.

4. Leak Detection: Vacuum pumps are also used in HVAC systems for leak detection purposes. After evacuating the system, technicians can monitor the pressure to check if it holds steady. A significant drop in pressure indicates the presence of leaks, enabling technicians to identify and repair them before charging the system with refrigerant.

In summary, a vacuum pump plays a vital role in an HVAC system by removing moisture, eliminating air and non-condensable gases, preparing the system for refrigerant charging, and aiding in leak detection. These functions help ensure optimal system performance, energy efficiency, and longevity, while also reducing the risk of system malfunctions and damage.

China Best Sales Industrial Oilless Double Stage Rotary Vane Vacuum Pump for Engineering Industry   vacuum pump diyChina Best Sales Industrial Oilless Double Stage Rotary Vane Vacuum Pump for Engineering Industry   vacuum pump diy
editor by Dream 2024-05-09

China manufacturer Wholesale 12V High Pressure DC Diaphragm Industrial Stage Electric Vacuum Pump with Best Sales

Product Description

High-Performance China Micro Vacuum Pump
Micro Air Pump/Brush DC Diaphragm Pressure Vacuum Pump/Mini Compressor Air Pump
Manufacturing  Factory

 

Product Description

To get more Technical data, Please Send a message!

 

pump

(1.5V~29V)

Miniature pump/Air pump/Vacuum pump/Water Pump/Atomization Pump/Foam pump/Nasal aspirator pump/Check valve Pump/Piston pump/Gear pump/Water Vapor pump/purpose air pump/Extraction pump/Dual pump/Vacuum air pump/Peristaltic pump/Miniature air pump

valve

(3V~12V)

Air Valve/Normal shutdown/Solenoid valve/Normal shutdown/Two-way valve/Water valve/Three-way valve

motor

(3V~24V)

Speed ratio DC brushless planetary motor/DC brushless motor of vacuum cleaner/DC brushless motor/Brushless DC motor for UAV

Feel free to send us your parameter and we will quote you for free!

We give you professional product solutions based on the product information you provide, including customization.

No big quantity is needed for your order. Small orders are welcomed.

We can also add your logo or design to your product with a laser marking machine.

Customized series

Tell us the product you want, we will provide you with professional customization of the product.

Support oem/odm, support proofing, support packaging, support voltage, support size, support design, etc.

Product Usage

Pump: electronic sphygmomanometer, household appliances, Sprayers, coffee machines, soap dispensers, beauty and medical products, Floor Scrubbers, nebulizer, Breast pump, oral irrigator, massage, eye massage apparatus, vacuum fresh container, electric aircraft cup, DC oxygen pump, Airwave physiotherapy machine, aroma diffuser, Beer brewing machine, Scrapping instrument, nasal aspirator, Intelligent wall breaker, drinking fountain, Car massage seat, Foot Massager and DC atomizing pump ect.

Solenoid valve: Smart fresh Fruit cup, Red wine preservation device, electronic sphygmomanometer, massage, household appliances, Sprayers, coffee machines, soap dispensers beauty and medical products etc.

DC brushless motor: massage, household massage gun, household appliances, electrical tools, water pump etc.

Company Profile

 

 

HangZhou CHINAMFG Motor Co., Ltd., founded in 2pcs, number of employees 600+, we have patent certificates for various products in addition to CE certificates, we provide product parameter customization
Our main products include micro air pumps, water pumps, air valves, electromagnets, micro DC motors, and other micro motors.
Our products are widely applied in medical devices, electronic sphygmomanometers, massage armchairs, smart instruments, automation devices, coffee machines, smart cleaners, breast pumps, and blood monitors. etc
We have a group of highly experienced engineers who specialized in the development of micro air pumps, micro air valves, and micro motors for over 21 years.

FAQ

 

1. What can you buy from us?
Air Pump / Solenoid Pump / Water Pump, Solenoid Valve / Water Valve, Valves, Micro DC Motors / other micromotors

 

2. What can we do for you?
We can develop new products for you or modify parameters such as flow, current, and pressure on existing products. We can OEM, and ODM.

Batch orders will be shipped in 30 working daysSample order will be shipped within 3 working days.

3.How long is the deliver[Producing] and shipping ?

Always a pre-production sample before mass production;Always final Inspection before shipment.

4. How can we guarantee quality?

The warranty is 3 year. We deliver new and faultless products. Also, we are responsible for repairing and replacing the defective ones in the warranty period meanwhile we provide life-long free technical support and maintenance.

5.What’s your warranty ?

One-stop service: one-stop service from production to shipment. Quality: A professional engineering team strictly controls product quality. Productivity: Fully automatic equipment can firmly support your bulk orders. Build your ideas: Any custom designs you have are welcome.

6.What services can we provide?

HangZhou CHINAMFG Motor Co., Ltd. is a professional Micro Pumps and solenoid valves manufacturer. Passed ISO 9001, (EU)2015/863, EC1907/2006 quality system. With a talented design team releasing original designs.

7. Why should you buy from us not from other suppliers? HangZhou CHINAMFG Motor Co., Ltd. is a professional Micro Pumps and solenoid valves manufacturer. Passed ISO 9001, (EU)2015/863, EC1907/2006 quality system. With a talented design team releasing original designs.

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After-sales Service: Timely
Warranty: 1 Year
Oil or Not: Oil Free
Samples:
US$ 4/Piece
1 Piece(Min.Order)

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Order Sample

Customization:
Available

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about shipping cost and estimated delivery time.
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vacuum pump

What Is the Role of Vacuum Pumps in Semiconductor Manufacturing?

Vacuum pumps play a critical role in semiconductor manufacturing processes. Here’s a detailed explanation:

Semiconductor manufacturing involves the production of integrated circuits (ICs) and other semiconductor devices used in various electronic applications. Vacuum pumps are used extensively throughout the semiconductor manufacturing process to create and maintain the required vacuum conditions for specific manufacturing steps.

Here are some key roles of vacuum pumps in semiconductor manufacturing:

1. Deposition Processes: Vacuum pumps are used in deposition processes such as physical vapor deposition (PVD) and chemical vapor deposition (CVD). These processes involve depositing thin films of materials onto semiconductor wafers to create various layers and patterns. Vacuum pumps help create a low-pressure environment necessary for precise control of the deposition process, ensuring uniform and high-quality film formation.

2. Etching and Cleaning: Vacuum pumps are utilized in etching and cleaning processes, which involve the removal of specific layers or contaminants from semiconductor wafers. Dry etching techniques, such as plasma etching and reactive ion etching, require a vacuum environment to facilitate the ionization and removal of material. Vacuum pumps aid in creating the necessary low-pressure conditions for efficient etching and cleaning processes.

3. Ion Implantation: Ion implantation is a process used to introduce impurities into specific regions of a semiconductor wafer to modify its electrical properties. Vacuum pumps are used to evacuate the ion implantation chamber, creating the required vacuum environment for accurate and controlled ion beam acceleration and implantation.

4. Wafer Handling and Transfer: Vacuum pumps are employed in wafer handling and transfer systems. These systems utilize vacuum suction to securely hold and manipulate semiconductor wafers during various manufacturing steps, such as loading and unloading from process chambers, robotic transfer between tools, and wafer alignment.

5. Load Lock Systems: Load lock systems are used to transfer semiconductor wafers between atmospheric conditions and the vacuum environment of process chambers. Vacuum pumps are integral components of load lock systems, creating and maintaining the vacuum conditions necessary for wafer transfer while minimizing contamination risks.

6. Metrology and Inspection: Vacuum pumps are utilized in metrology and inspection tools used for characterizing semiconductor devices. These tools, such as scanning electron microscopes (SEMs) and focused ion beam (FIB) systems, often operate in a vacuum environment to enable high-resolution imaging and accurate analysis of semiconductor structures and defects.

7. Leak Detection: Vacuum pumps are employed in leak detection systems to identify and locate leaks in vacuum chambers, process lines, and other components. These systems rely on vacuum pumps to evacuate the system and then monitor for any pressure rise, indicating the presence of leaks.

8. Cleanroom Environment Control: Semiconductor manufacturing facilities maintain cleanroom environments to prevent contamination during the fabrication process. Vacuum pumps are used in the design and operation of the cleanroom ventilation and filtration systems, helping to maintain the required air cleanliness levels by removing particulates and maintaining controlled air pressure differentials.

Vacuum pumps used in semiconductor manufacturing processes are often specialized to meet the stringent requirements of the industry. They need to provide high vacuum levels, precise control, low contamination levels, and reliability for continuous operation.

Overall, vacuum pumps are indispensable in semiconductor manufacturing, enabling the creation of the necessary vacuum conditions for various processes, ensuring the production of high-quality semiconductor devices.

vacuum pump

How Do Vacuum Pumps Contribute to Energy Savings?

Vacuum pumps play a significant role in energy savings in various industries and applications. Here’s a detailed explanation:

Vacuum pumps contribute to energy savings through several mechanisms and efficiencies. Some of the key ways in which vacuum pumps help conserve energy are:

1. Improved Process Efficiency: Vacuum pumps are often used to remove gases and create low-pressure or vacuum conditions in industrial processes. By reducing the pressure, vacuum pumps enable the removal of unwanted gases or vapors, improving the efficiency of the process. For example, in distillation or evaporation processes, vacuum pumps help lower the boiling points of liquids, allowing them to evaporate or distill at lower temperatures. This results in energy savings as less heat is required to achieve the desired separation or concentration.

2. Reduced Energy Consumption: Vacuum pumps are designed to operate efficiently and consume less energy compared to other types of equipment that perform similar functions. Modern vacuum pump designs incorporate advanced technologies, such as variable speed drives, energy-efficient motors, and optimized control systems. These features allow vacuum pumps to adjust their operation based on demand, reducing energy consumption during periods of lower process requirements. By consuming less energy, vacuum pumps contribute to overall energy savings in industrial operations.

3. Leak Detection and Reduction: Vacuum pumps are often used in leak detection processes to identify and locate leaks in systems or equipment. By creating a vacuum or low-pressure environment, vacuum pumps can assess the integrity of a system and identify any sources of leakage. Detecting and repairing leaks promptly helps prevent energy wastage associated with the loss of pressurized fluids or gases. By addressing leaks, vacuum pumps assist in reducing energy losses and improving the overall energy efficiency of the system.

4. Energy Recovery Systems: In some applications, vacuum pumps can be integrated into energy recovery systems. For instance, in certain manufacturing processes, the exhaust gases from vacuum pumps may contain heat or have the potential for energy recovery. By utilizing heat exchangers or other heat recovery systems, the thermal energy from the exhaust gases can be captured and reused to preheat incoming fluids or provide heat to other parts of the process. This energy recovery approach further enhances the overall energy efficiency by utilizing waste heat that would otherwise be lost.

5. System Optimization and Control: Vacuum pumps are often integrated into centralized vacuum systems that serve multiple processes or equipment. These systems allow for better control, monitoring, and optimization of the vacuum generation and distribution. By centralizing the vacuum production and employing intelligent control strategies, energy consumption can be optimized based on the specific process requirements. This ensures that vacuum pumps operate at the most efficient levels, resulting in energy savings.

6. Maintenance and Service: Proper maintenance and regular servicing of vacuum pumps are essential for their optimal performance and energy efficiency. Routine maintenance includes tasks such as cleaning, lubrication, and inspection of pump components. Well-maintained pumps operate more efficiently, reducing energy consumption. Additionally, prompt repair of any faulty parts or addressing performance issues helps maintain the pump’s efficiency and prevents energy waste.

In summary, vacuum pumps contribute to energy savings through improved process efficiency, reduced energy consumption, leak detection and reduction, integration with energy recovery systems, system optimization and control, as well as proper maintenance and service. By utilizing vacuum pumps efficiently and effectively, industries can minimize energy waste, optimize energy usage, and achieve significant energy savings in various applications and processes.

vacuum pump

Can Vacuum Pumps Be Used in Food Processing?

Yes, vacuum pumps are widely used in food processing for various applications. Here’s a detailed explanation:

Vacuum pumps play a crucial role in the food processing industry by enabling the creation and maintenance of vacuum or low-pressure environments. They offer several benefits in terms of food preservation, packaging, and processing. Here are some common applications of vacuum pumps in food processing:

1. Vacuum Packaging: Vacuum pumps are extensively used in vacuum packaging processes. Vacuum packaging involves removing air from the packaging container to create a vacuum-sealed environment. This process helps extend the shelf life of food products by inhibiting the growth of spoilage-causing microorganisms and reducing oxidation. Vacuum pumps are used to evacuate the air from the packaging, ensuring a tight seal and maintaining the quality and freshness of the food.

2. Freeze Drying: Vacuum pumps are essential in freeze drying or lyophilization processes used in food processing. Freeze drying involves removing moisture from food products while they are frozen, preserving their texture, flavor, and nutritional content. Vacuum pumps create a low-pressure environment that allows frozen water to directly sublimate from solid to vapor, resulting in the removal of moisture from the food without causing damage or loss of quality.

3. Vacuum Cooling: Vacuum pumps are utilized in vacuum cooling processes for rapid and efficient cooling of food products. Vacuum cooling involves placing the food in a vacuum chamber and reducing the pressure. This lowers the boiling point of water, facilitating the rapid evaporation of moisture and heat from the food, thereby cooling it quickly. Vacuum cooling helps maintain the freshness, texture, and quality of delicate food items such as fruits, vegetables, and bakery products.

4. Vacuum Concentration: Vacuum pumps are employed in vacuum concentration processes in the food industry. Vacuum concentration involves removing excess moisture from liquid food products to increase their solids content. By creating a vacuum, the boiling point of the liquid is reduced, allowing for gentle evaporation of water while preserving the desired flavors, nutrients, and viscosity of the product. Vacuum concentration is commonly used in the production of juices, sauces, and concentrates.

5. Vacuum Mixing and Deaeration: Vacuum pumps are used in mixing and deaeration processes in food processing. In the production of certain food products such as chocolates, confectioneries, and sauces, vacuum mixing is employed to remove air bubbles, achieve homogeneity, and improve product texture. Vacuum pumps aid in the removal of entrapped air and gases, resulting in smooth and uniform food products.

6. Vacuum Filtration: Vacuum pumps are utilized in food processing for vacuum filtration applications. Vacuum filtration involves separating solids from liquids or gases using a filter medium. Vacuum pumps create suction that draws the liquid or gas through the filter, leaving behind the solid particles. Vacuum filtration is commonly used in processes such as clarifying liquids, removing impurities, and separating solids from liquids in the production of beverages, oils, and dairy products.

7. Marinating and Brining: Vacuum pumps are employed in marinating and brining processes in the food industry. By applying a vacuum to the marinating or brining container, the pressure is reduced, allowing the marinade or brine to penetrate the food more efficiently. Vacuum marinating and brining help enhance flavor absorption, reduce marinating time, and improve the overall taste and texture of the food.

8. Controlled Atmosphere Packaging: Vacuum pumps are used in controlled atmosphere packaging (CAP) systems in the food industry. CAP involves modifying the gas composition within food packaging to extend the shelf life and maintain the quality of perishable products. Vacuum pumps aid in the removal of oxygen or other unwanted gases from the package, allowing the introduction of a desired gas mixture that preserves the food’s freshness and inhibits microbial growth.

These are just a few examples of how vacuum pumps are used in food processing. The ability to create and control vacuum or low-pressure environments is a valuable asset in preserving food quality, enhancing shelf life, and facilitating various processing techniques in the food industry.

China manufacturer Wholesale 12V High Pressure DC Diaphragm Industrial Stage Electric Vacuum Pump   with Best Sales China manufacturer Wholesale 12V High Pressure DC Diaphragm Industrial Stage Electric Vacuum Pump   with Best Sales
editor by Dream 2024-04-30

China Best Sales High Quality Rotary Vane Dual Stage Air Electric Vacuum Pump 5cfm vacuum pump distributors

Product Description

Our vacuum pump has the following advantages: easy to carry about, efficient, long-effect filtration, overheat protection, good material. It is applicable to the following scenarios: vacuum packing, gas analysis, medical machinery, thermoplastic molding.

  /* January 22, 2571 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1

Oil or Not: Oil
Structure: Rotary Vacuum Pump
Exhauster Method: Entrapment Vacuum Pump
Vacuum Degree: High Vacuum
Work Function: Mainsuction Pump
Working Conditions: Wet
Samples:
US$ 32/Piece
1 Piece(Min.Order)

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Customization:
Available

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Vacuum Pump

Disadvantages of using a vacuum pump

A vacuum pump is a device that pulls gas molecules out of a volume and leaves a partial vacuum. Its main function is to create a relative vacuum within a given volume. There are several types of vacuum pumps. Some of them are better suited for specific purposes than others. However, there are some disadvantages to using a vacuum pump.

Application of vacuum pump

Vacuum pumps are invaluable tools in many industrial and scientific processes. They are often used to move gas and other harmful substances and to clear clogged drains. They are also used to support mechanical equipment. For example, they can be mounted on the engine of a motor vehicle or the power hydraulic component of an aircraft. No matter how they are used, they should fit the application.
The principle of a vacuum pump is to draw gas from a sealed chamber to create a partial vacuum. Over the years, vacuum pump technology has evolved from its original beginnings to its current form. Today, there are many types of vacuum pumps, including rotary vane pumps, momentum transfer pumps, and regeneration pumps.
The semiconductor industry is a major user of vacuum pumps. Among other applications, these pumps are commonly used for mounting circuit boards, securing components, blowing and jetting, and pumping. The use of renewable resources has paved the way for widespread semiconductor production, where vacuum pumps are crucial. This manufacturing shift is expected to boost vacuum pump sales across Europe.
Vacuum Pump
The most common types of vacuum pumps are positive displacement and rotary vane pumps. Positive displacement pumps are most effective for rough vacuum applications and are usually paired with momentum transfer pumps. These pumps are used in pharmaceutical, food and medical processes. They are also used in diesel engines, hydraulic brakes and sewage systems.
Positive displacement pumps are used to create low vacuum conditions and create a partial vacuum. These pumps create lower air pressure by enlarging the chamber and allowing gas to flow into the chamber. The air in the cavity is then vented to the atmosphere. Alternatively, momentum transfer pumps, also known as molecular pumps, use high-speed rotating blades to create dense fluids.
Vacuum Pump

Their drawbacks

Vacuum pumps are useful in industrial applications. However, they are not perfect and have some drawbacks. One of them is that their output is limited by the vacuum hose. Vacuum hoses are the bottleneck for vacuum pump performance and evacuation rates. The hose must be kept free of water and organic matter to ensure the highest possible vacuum.
Dry vacuum pumps do not have these problems. They may be more cost-effective but will increase maintenance costs. Water consumption is another disadvantage. When pond water is used, the pump puts additional pressure on the treatment facility. Additionally, contaminants from the gas can become trapped in the water, shortening the life of the pump.
Another disadvantage of vacuum pumps is their limited operating time at low vacuum. Therefore, they are only suitable for extremely high vacuum levels. Diaphragm pumps are another option for industrial applications. They have a sealed fluid chamber that allows a moderate vacuum. They also feature short strokes and a low compression ratio, making them quieter than their reciprocating counterparts.
Vacuum pumps are used in many industrial and scientific processes. They can be used to transport hazardous materials or clear clogged drains. They are also used in rear doors and dump tanks. Certain types of vacuum pumps can cause fluid blockages, which can be harmful. The vacuum pump should also be well suited to the fluid in it to avoid contamination.
Another disadvantage is the lack of proper vacuum system testing equipment. Mechanics often underestimate the importance of a properly functioning vacuum system. Most stores lack the equipment needed for proper troubleshooting. Typically, mechanics rely on the cockpit vacuum gauge to determine if the pump is working properly.
Some vacuum pumps are capable of providing constant vacuum. These pumps are also capable of eliminating odors and spills. However, these advantages are outweighed by some disadvantages of vacuum pumps.

China Best Sales High Quality Rotary Vane Dual Stage Air Electric Vacuum Pump 5cfm   vacuum pump distributorsChina Best Sales High Quality Rotary Vane Dual Stage Air Electric Vacuum Pump 5cfm   vacuum pump distributors
editor by Dream 2024-04-26

China OEM Dual Stage Vacuum Pump Vp Series vacuum pump connector

Product Description

With Automatic high speed flow and compensation function   under the setting pressure.Comparing with fixed displacement vane pump,it has lower consumption and heat radiation;
Stable and noiseless in operation,especially suitable for machine tool and accord to requirements of housed activities.
It contains mechanical pressure adjustment;For an arbitrary choice

Specifications:
1.CE certificate
2.LVD certificate
3.For air conditionin
4.Small,light,nicelooking.

Used for:
The vacuum pump is mainly applied in many fields, such as refrigeration maintain, printing machine, medical equipment, vacuum packing, gas analyze and thermoplastic molding ect.
Exact indication of internal system pressure on the vacuum gauge. The vacuum gauge can equip on all models of vacuum pump.

Technical parameters:

Item NO. VP215(2VP-0.5) VP225(2VP-1) VP235(2VP-1.5) VP245(2VP-2) VP260(2VP-3) VP280(2VP-4) VP2100(2VP-5)
Flow Rate 50Hz 1.5CFM 2.5CFM 3.5CFM 4.5CFM 6CFM 8CFM 10CFM
42 L/min 70 L/min 100 L/min 128 L/min 170 L/min 226 L/min 283 L/min
60Hz 1.8CFM 3CFM 4CFM 5CFM 7CFM 9CFM 12CFM
50 L/min 84 L/min 114 L/min 142 L/min 198 L/min 254 L/min 340 L/min
Ultimate vacuum   3×10-1Pa 3×10-1Pa 3×10-1Pa 3×10-1Pa 3×10-1Pa 3×10-1Pa 3×10-1Pa
  20 microns 20 microns 20 microns 20 microns 20 microns 20 microns 20 microns
Power 1/4HP 1/3HP 1/3HP 1/2HP 3/4HP 1HP 1HP
Inlet Port 1/4″Flare 1/4″Flare 1/4″&3/8″Flare 1/4″&3/8″Flare 1/4″&3/8″Flare 1/4″&3/8″Flare 1/4″&3/8″Flare
Oil Capacity 180ml 280ml 350ml 340ml 600ml 600ml 700ml
Dimensions(mm) 260x122x220 270x122x220 320x134x232 320x134x232 370x140x250 370x140x250 390x140x250
Weight 6kg 7kg 10.5kg 11kg 15kg 15.5kg 16kg

Pump oil:

All plugs reference of vacuum pump:

Package:

FAQ
Q. What are the payment terms?
 A. 30% deposit CHINAMFG confirmation of order and 70% balance TT before shipment.
 
Q. Can the air compressor be customized according to preference?
A. We welcome all request and customization.
 
Q. Do the factory offer OEM products?
A. Yes we can do OEM if our clients authorized us the copyrights.
 
Q. Are spare parts readily available?
Spare parts are prepared . We stock all spare parts and will courier in urgent cases. Parts are readily available and affordable.
 

Related product:

     

Advanced One-Stop Purchasing Service-In Air-conditioning And Refrigeration Industry

Main product
Copper Tube — Aluminum Tube Coil
Brass Pipe — Steel Sheet
Fan Motor — Compressor– Condenser Unit
Valves Gauge– Hand tools –Vacuum Pump– PE Tape

 
Contact:
Aimee Chen
HangZhou Andwin Refrigeration Equipment Co.,Ltd
Add:No.91 Xihu (West Lake) Dis. Road, New District, HangZhou, ZheJiang , China.

 
    
  
  
 

    
  
  
 
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Oil or Not: Oil
Structure: Rotary Vacuum Pump
Exhauster Method: Positive Displacement Pump
Vacuum Degree: Vacuum
Work Function: Maintain the Pump
Working Conditions: Dry
Samples:
US$ 100/Piece
1 Piece(Min.Order)

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Customization:
Available

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vacuum pump

What Is the Impact of Altitude on Vacuum Pump Performance?

The performance of vacuum pumps can be influenced by the altitude at which they are operated. Here’s a detailed explanation:

Altitude refers to the elevation or height above sea level. As the altitude increases, the atmospheric pressure decreases. This decrease in atmospheric pressure can have several effects on the performance of vacuum pumps:

1. Reduced Suction Capacity: Vacuum pumps rely on the pressure differential between the suction side and the discharge side to create a vacuum. At higher altitudes, where the atmospheric pressure is lower, the pressure differential available for the pump to work against is reduced. This can result in a decrease in the suction capacity of the vacuum pump, meaning it may not be able to achieve the same level of vacuum as it would at lower altitudes.

2. Lower Ultimate Vacuum Level: The ultimate vacuum level, which represents the lowest pressure that a vacuum pump can achieve, is also affected by altitude. As the atmospheric pressure decreases with increasing altitude, the ultimate vacuum level that can be attained by a vacuum pump is limited. The pump may struggle to reach the same level of vacuum as it would at sea level or lower altitudes.

3. Pumping Speed: Pumping speed is a measure of how quickly a vacuum pump can remove gases from a system. At higher altitudes, the reduced atmospheric pressure can lead to a decrease in pumping speed. This means that the vacuum pump may take longer to evacuate a chamber or system to the desired vacuum level.

4. Increased Power Consumption: To compensate for the decreased pressure differential and achieve the desired vacuum level, a vacuum pump operating at higher altitudes may require higher power consumption. The pump needs to work harder to overcome the lower atmospheric pressure and maintain the necessary suction capacity. This increased power consumption can impact energy efficiency and operating costs.

5. Efficiency and Performance Variations: Different types of vacuum pumps may exhibit varying degrees of sensitivity to altitude. Oil-sealed rotary vane pumps, for example, may experience more significant performance variations compared to dry pumps or other pump technologies. The design and operating principles of the vacuum pump can influence its ability to maintain performance at higher altitudes.

It’s important to note that vacuum pump manufacturers typically provide specifications and performance curves for their pumps based on standardized conditions, often at or near sea level. When operating a vacuum pump at higher altitudes, it is advisable to consult the manufacturer’s guidelines and consider any altitude-related limitations or adjustments that may be necessary.

In summary, the altitude at which a vacuum pump operates can have an impact on its performance. The reduced atmospheric pressure at higher altitudes can result in decreased suction capacity, lower ultimate vacuum levels, reduced pumping speed, and potentially increased power consumption. Understanding these effects is crucial for selecting and operating vacuum pumps effectively in different altitude environments.

vacuum pump

What Is the Difference Between Dry and Wet Vacuum Pumps?

Dry and wet vacuum pumps are two distinct types of pumps that differ in their operating principles and applications. Here’s a detailed explanation of the differences between them:

Dry Vacuum Pumps:

Dry vacuum pumps operate without the use of any lubricating fluid or sealing water in the pumping chamber. They rely on non-contact mechanisms to create a vacuum. Some common types of dry vacuum pumps include:

1. Rotary Vane Pumps: Rotary vane pumps consist of a rotor with vanes that slide in and out of slots in the rotor. The rotation of the rotor creates chambers that expand and contract, allowing the gas to be pumped. The vanes and the housing are designed to create a seal, preventing gas from flowing back into the pump. Rotary vane pumps are commonly used in laboratories, medical applications, and industrial processes where a medium vacuum level is required.

2. Dry Screw Pumps: Dry screw pumps use two or more intermeshing screws to compress and transport gas. As the screws rotate, the gas is trapped between the threads and transported from the suction side to the discharge side. Dry screw pumps are known for their high pumping speeds, low noise levels, and ability to handle various gases. They are used in applications such as semiconductor manufacturing, chemical processing, and vacuum distillation.

3. Claw Pumps: Claw pumps use two rotors with claw-shaped lobes that rotate in opposite directions. The rotation creates a series of expanding and contracting chambers, enabling gas capture and pumping. Claw pumps are known for their oil-free operation, high pumping speeds, and suitability for handling dry and clean gases. They are commonly used in applications such as automotive manufacturing, food packaging, and environmental technology.

Wet Vacuum Pumps:

Wet vacuum pumps, also known as liquid ring pumps, operate by using a liquid, typically water, to create a seal and generate a vacuum. The liquid ring serves as both the sealing medium and the working fluid. Wet vacuum pumps are commonly used in applications where a higher level of vacuum is required or when handling corrosive gases. Some key features of wet vacuum pumps include:

1. Liquid Ring Pumps: Liquid ring pumps feature an impeller with blades that rotate eccentrically within a cylindrical casing. As the impeller rotates, the liquid forms a ring against the casing due to centrifugal force. The liquid ring creates a seal, and as the impeller spins, the volume of the gas chamber decreases, leading to the compression and discharge of gas. Liquid ring pumps are known for their ability to handle wet and corrosive gases, making them suitable for applications such as chemical processing, oil refining, and wastewater treatment.

2. Water Jet Pumps: Water jet pumps utilize a jet of high-velocity water to create a vacuum. The water jet entrains gases, and the mixture is then separated in a venturi section, where the water is recirculated, and the gases are discharged. Water jet pumps are commonly used in laboratories and applications where a moderate vacuum level is required.

The main differences between dry and wet vacuum pumps can be summarized as follows:

1. Operating Principle: Dry vacuum pumps operate without the need for any sealing fluid, while wet vacuum pumps utilize a liquid ring or water as a sealing and working medium.

2. Lubrication: Dry vacuum pumps do not require lubrication since there is no contact between moving parts, whereas wet vacuum pumps require the presence of a liquid for sealing and lubrication.

3. Applications: Dry vacuum pumps are suitable for applications where a medium vacuum level is required, and oil-free operation is desired. They are commonly used in laboratories, medical settings, and various industrial processes. Wet vacuum pumps, on the other hand, are used when a higher vacuum level is needed or when handling corrosive gases. They find applications in chemical processing, oil refining, and wastewater treatment, among others.

It’s important to note that the selection of a vacuum pump depends on specific requirements such as desired vacuum level, gas compatibility, operating conditions, and the nature of the application.

In summary, the primary distinction between dry and wet vacuum pumps lies in their operating principles, lubrication requirements, and applications. Dry vacuum pumps operate without any lubricating fluid, while wet vacuum pumps rely on a liquid ring or water for sealing and lubrication. The choice between dry and wet vacuum pumps depends on the specific needs of the application and the desired vacuum level.

vacuum pump

What Industries Commonly Rely on Vacuum Pump Technology?

Vacuum pump technology finds applications in various industries where creating and controlling vacuum or low-pressure environments is crucial. Here’s a detailed explanation:

1. Manufacturing and Production: Vacuum pumps are extensively used in manufacturing and production processes across multiple industries. They are employed for tasks such as vacuum molding, vacuum packaging, vacuum degassing, vacuum drying, and vacuum distillation. Industries like automotive, aerospace, electronics, pharmaceuticals, and food processing rely on vacuum pump technology to achieve precise and controlled manufacturing conditions.

2. Chemical and Pharmaceutical: The chemical and pharmaceutical industries heavily rely on vacuum pumps for numerous applications. These include solvent recovery, vacuum filtration, vacuum drying, distillation, crystallization, and evaporation. Vacuum pumps enable these industries to carry out critical processes under reduced pressure, ensuring efficient separation, purification, and synthesis of various chemical compounds and pharmaceutical products.

3. Semiconductor and Electronics: The semiconductor and electronics industries extensively use vacuum pumps for manufacturing microchips, electronic components, and electronic devices. Vacuum pumps are crucial in processes such as physical vapor deposition (PVD), chemical vapor deposition (CVD), etching, ion implantation, and sputtering. These processes require controlled vacuum conditions to ensure precise deposition, surface modification, and contamination-free manufacturing.

4. Research and Development: Vacuum pump technology is integral to research and development activities across scientific disciplines. It supports experiments and investigations in fields such as physics, chemistry, materials science, biology, and environmental science. Vacuum pumps facilitate processes like freeze drying, vacuum distillation, vacuum evaporation, vacuum spectroscopy, and creating controlled atmospheric conditions for studying various phenomena.

5. Food and Beverage: The food and beverage industry relies on vacuum pumps for packaging and preservation purposes. Vacuum sealing is used to extend the shelf life of food products by removing air and creating a vacuum-sealed environment that inhibits spoilage and maintains freshness. Vacuum pumps are also used in processes like freeze drying, vacuum concentration, and vacuum cooling.

6. Oil and Gas: In the oil and gas industry, vacuum pumps play a role in various applications. They are used for crude oil vacuum distillation, vacuum drying, vapor recovery, gas compression, and gas stripping processes. Vacuum pumps help maintain optimal conditions during oil refining, gas processing, and petrochemical manufacturing.

7. Environmental and Waste Management: Vacuum pumps are employed in environmental and waste management applications. They are used for tasks such as soil vapor extraction, groundwater remediation, landfill gas recovery, and wastewater treatment. Vacuum pumps facilitate the removal and containment of gases, vapors, and pollutants, contributing to environmental protection and sustainable waste management.

8. Medical and Healthcare: The medical and healthcare sectors utilize vacuum pumps for various purposes. They are used in medical equipment such as vacuum-assisted wound therapy devices, vacuum-based laboratory analyzers, and vacuum suction systems in hospitals and clinics. Vacuum pumps are also used in medical research, pharmaceutical production, and medical device manufacturing.

9. Power Generation: Vacuum pumps play a role in power generation industries, including nuclear power plants and thermal power plants. They are used for steam condensation, turbine blade cooling, vacuum drying during transformer manufacturing, and vacuum systems for testing and maintenance of power plant equipment.

10. HVAC and Refrigeration: The HVAC (Heating, Ventilation, and Air Conditioning) and refrigeration industries rely on vacuum pumps for system installation, maintenance, and repair. Vacuum pumps are used to evacuate air and moisture from refrigerant lines and HVAC systems, ensuring optimal system performance and efficiency.

These are just a few examples of industries that commonly rely on vacuum pump technology. The versatility and wide-ranging applications of vacuum pumps make them indispensable tools across numerous sectors, enabling precise control over vacuum conditions, efficient manufacturing processes, and scientific investigations.

China OEM Dual Stage Vacuum Pump Vp Series   vacuum pump connector	China OEM Dual Stage Vacuum Pump Vp Series   vacuum pump connector
editor by Dream 2024-04-26

China supplier 2sk Single Double Stage Liquid Water-Ring Vacuum Pump Boosters Roots Rotary Van Piston Pump Replace with Hot selling

Product Description

PRODUCT INTRODUCTION
Application:Biofuel Industry,Food and Beverage Industry, Irrigation and Agriculture, Raw Water Intake, temperature control, Washing and Cleaning, Wastewater Transport and Flood Control, wastewater treatment, Water Distribution, Water Treatment Solutions
 

Overview of 2SK series water ring vacuum pump SK Series two-stage water ring vacuum pump and 2sk-p1 series two-stage water ring vacuum pump atmospheric pump unit are used to pump air and other non corrosive, water-insoluble and CZPT particles free gases, so as to obtain higher vacuum in closed containers. It is widely used in food, textile, chemical, pharmaceutical and metallurgical industries and electronic fields, such as vacuum evaporation, vacuum concentration, vacuum moisture regain, vacuum impregnation, vacuum drying and vacuum smelting. It has the characteristics of high vacuum degree, high pumping speed in high vacuum area, compact structure and convenient maintenance. 2SK series is used for working conditions with suction pressure lower than -0.08mpa, and 2sk-p1 series is used for working conditions with suction pressure lower than -0.096mpa

Model significance of 2SK series water ring vacuum pump

Model features of 2SK series water ring vacuum pump Water ring vacuum pump is used to pump air and other non corrosive, insoluble in water, no CZPT particles in order to obtain a higher vacuum in a closed container. It has the characteristics of high vacuum degree, high pumping speed in high vacuum area, compact structure and convenient maintenance.

Application of 2SK series water ring vacuum pump This series of water ring vacuum pumps are widely used in food, textile, chemical, pharmaceutical and metallurgical industries and electronic fields, such as vacuum evaporation, vacuum concentration, vacuum moisture regain, vacuum impregnation, vacuum drying and vacuum smelting.
CHOOSE OUR STRENGTHS
Quality assurance and honest service

 

FAULT ANALYSIS

 

fault   reason
 
 resolvent
Insufficient air extraction
 
1. The clearance is too large 
2. Air leakage at packing 
3. High water ring temperature 
4. Leakage of pipeline system
 
1. Adjust the clearance 
2. Compress or replace raw materials 
3. Increase water supply 
4. Tighten flange bolts, replace gasket or
weld cracks
 
The vacuum is reduced
 
1. Air leakage at flange connection 
2. The pipeline has cracks 
3. Packing leakage 
4. The clearance between impeller and side cover is too large 
5. Water ring heating 
6. Water shortage 
7. Friction heating of parts causes the temperature of water ring to rise
 
1. Tighten the flange bolts or replace the gasket 
2. Welding repair or replacement 
3. Compress or replace the packing 
4. Replace the gasket or adjust the clearance 5. Reduce the water supply temperature 
6. Increase water supply 
7. Adjust or re install
 
Vibration or noise
 
1. The anchor bolt is loose 
2. There are foreign matters in the pump 
3. Blade fracture 
4. Cavitation
 
1. Tighten the anchor bolts 
2. Stop the pump to check and remove foreign matters 
3. Replace impeller 
4. Open the suction pipe valve
 
Bearing heating
 
1. Insufficient lubricating oil 
2. The packing is pressed too tightly 
3. No packing seal water or insufficient 
4. The bearing, shaft or bearing frame fit too tightly, so that the clearance between the ball and the inner and outer rings is too small,
resulting in friction
 
1. Check the condition of lubricating oil and add oil 
2. Loosen the packing gland properly 
3. Supply packing sealing water or
increase water quantity 
4. Adjust the fit of bearing with shaft or bearing frame
 
Difficult to start
 

1.Rust in the pump after long-term shutdown

2. The packing pressure is too tight 
3. Friction between impeller and pump body

1. Use water or special tools to turn the impeller several times 
2. Tighten the packing gland 
3. Re install and adjust
 
     
     

Package & Transport

Abou us
ONETER  is 1 of the leading manufacturer for the Slurry pump & Coupler& Vacuum pump since 2571 year. Refund the money if you are not satified of the quality.
*100% quality guarantee.
*One-stop service for you.
*Factory competitive price.
*Fast delievery time with stocks.

WHY CHOOSE US?!
1.ONETER  only supply competitive advantage products!
2.Full refund or Free replacement in case of bad quality or late delivery!
3.ONETER are focus on service for solution, not only supply screw barrel parts!
4.Quality is our culture, with us your money in safe your business in safe!!!
Working with scen

FAQ
Q1. What is your terms of packing?
A: Generally, we pack our goods in neutral export wooden case . If you have legally registered patent, we can pack the goods in wooden case with your own marks after getting your authorization letters.
Q2. What is your termsof payment?
A: T/T 30% as deposit, and 70% before delivery. We’ll show you the photos of the products and packages before you pay
the balance.
Q3. How about your delivery time?
A: Generally, it will take from 10 dasys to 50 days after receiving your advance payment according to the pump’s material. The specific delivery time also depends on the items and the quantity of your order.
Q4. Can you produce according to the samples?
A: Yes, we can produce by your samples or technical drawings. We can build the molds and fixtures.
Q5. What is your sample policy?
A: We can supply the sample if we have ready parts in stock, but the customers have to pay the sample cost and the courier cost.
Q6. Do youtest all your goods before delivery?
A: Yes, we have 100% test the pumps before delivery
 

/* January 22, 2571 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1

After-sales Service: Life-Long Service System
Warranty: 2 Years
Max.Head: >150m
Customization:
Available

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Shipping Cost:

Estimated freight per unit.







about shipping cost and estimated delivery time.
Payment Method:







 

Initial Payment



Full Payment
Currency: US$
Return&refunds: You can apply for a refund up to 30 days after receipt of the products.

piston vacuum pump

How Does a Piston Vacuum Pump Work?

A piston vacuum pump, also known as a reciprocating vacuum pump, operates using a piston mechanism to create a vacuum. Here’s a detailed explanation of its working principle:

1. Piston and Cylinder Assembly:

– A piston vacuum pump consists of a piston and cylinder assembly.

– The piston is a movable component that fits inside the cylinder and creates a seal between the piston and cylinder walls.

2. Intake and Exhaust Valves:

– The cylinder has two valves: an intake valve and an exhaust valve.

– The intake valve allows gas or air to enter the cylinder during the suction stroke, while the exhaust valve allows the expelled gas to exit during the compression stroke.

3. Suction Stroke:

– During the suction stroke, the piston moves downward, creating a vacuum within the cylinder.

– As the piston moves down, the intake valve opens, allowing gas or air from the system being evacuated to enter the cylinder.

– The volume within the cylinder increases, causing a decrease in pressure and the creation of a partial vacuum.

4. Compression Stroke:

– After the suction stroke, the piston moves upward during the compression stroke.

– As the piston moves up, the intake valve closes, preventing backflow of gas into the evacuated system.

– Simultaneously, the exhaust valve opens, allowing the gas trapped in the cylinder to be expelled.

– The upward movement of the piston reduces the volume within the cylinder, compressing the gas and increasing its pressure.

5. Expulsion of Gas:

– Once the compression stroke is complete, the gas is expelled through the exhaust valve.

– The exhaust valve then closes, ready for the next suction stroke.

– This process of alternating suction and compression strokes continues, gradually reducing the pressure within the evacuated system.

6. Lubrication:

– Piston vacuum pumps require lubrication for smooth operation and to maintain the airtight seal between the piston and cylinder walls.

– Lubricating oil is often introduced into the cylinder to provide lubrication and help maintain the seal.

– The oil also helps to cool the pump by dissipating heat generated during operation.

7. Applications:

– Piston vacuum pumps are commonly used in applications where high vacuum levels and low flow rates are required.

– They are suitable for processes such as laboratory work, vacuum drying, vacuum filtration, and other applications that require moderate vacuum levels.

In summary, a piston vacuum pump operates by creating a vacuum through the reciprocating motion of a piston within a cylinder. The suction stroke creates a vacuum by lowering the pressure within the cylinder, while the compression stroke expels the gas and increases its pressure. This cyclic process continues, gradually reducing the pressure within the system being evacuated. Piston vacuum pumps are commonly used in various applications that require moderate vacuum levels and low flow rates.

piston vacuum pump

What Industries Commonly Rely on Piston Vacuum Pumps?

Various industries rely on piston vacuum pumps for their specific applications and requirements. Here’s a detailed explanation:

1. Manufacturing and Industrial Processes:

– Piston vacuum pumps find extensive use in manufacturing and industrial processes across different sectors.

– They are commonly employed in vacuum packaging, where they help create a vacuum environment to preserve and extend the shelf life of food products.

– In the automotive industry, piston vacuum pumps are utilized in brake booster systems to provide the necessary vacuum for power braking.

– Other industrial applications include vacuum molding, vacuum drying, vacuum distillation, and vacuum filtration.

2. Pharmaceuticals and Medical Industry:

– The pharmaceutical and medical industry extensively relies on piston vacuum pumps for various critical processes.

– These pumps are used in pharmaceutical manufacturing for vacuum drying, solvent recovery, and distillation processes.

– In medical applications, piston vacuum pumps are utilized in vacuum suction devices and medical laboratory equipment.

– They are also employed in vacuum autoclaves for sterilization purposes.

3. Research and Laboratory Settings:

– Piston vacuum pumps are commonly found in research laboratories and scientific facilities.

– They are used for creating vacuum conditions in laboratory equipment such as vacuum ovens, freeze dryers, and vacuum desiccators.

– These pumps are crucial for applications like sample preparation, material testing, and scientific experiments requiring controlled environments.

4. Electronics and Semiconductor Manufacturing:

– The electronics and semiconductor industry heavily relies on piston vacuum pumps for various manufacturing processes.

– They are utilized in vacuum deposition systems for thin film coating, such as physical vapor deposition (PVD) and chemical vapor deposition (CVD).

– Piston pumps are also employed in vacuum furnaces for heat treatment processes in semiconductor fabrication.

– Other applications include vacuum packaging of electronic components and devices.

5. Food Processing and Packaging:

– Piston vacuum pumps play a significant role in the food processing and packaging industry.

– They are used for vacuum packaging of perishable food items, preventing spoilage and extending shelf life.

– In food processing, these pumps assist in vacuum concentration, freeze drying, and deaeration processes.

6. Environmental and Waste Management:

– Piston vacuum pumps find applications in environmental and waste management sectors.

– They are used in vacuum systems for wastewater treatment, including processes like aeration, filtration, and sludge dewatering.

– Piston pumps also assist in industrial and municipal waste management systems for vacuum collection or transfer of waste materials.

7. Other Industries:

– Piston vacuum pumps have diverse applications in additional industries:

– They are used in the glass manufacturing industry for vacuum lifting and handling of glass sheets or products.

– Piston pumps find application in the printing industry for vacuum feeding and ink transfer systems.

– They are employed in the power generation industry for steam condenser evacuation and turbine sealing systems.

In summary, piston vacuum pumps find widespread use in industries such as manufacturing and industrial processes, pharmaceuticals and medical, research and laboratory settings, electronics and semiconductor manufacturing, food processing and packaging, environmental and waste management, as well as in other sectors like glass manufacturing, printing, and power generation.

piston vacuum pump

Can Piston Vacuum Pumps Handle Corrosive Gases or Vapors?

Piston vacuum pumps are generally not suitable for handling corrosive gases or vapors. Here’s a detailed explanation:

1. Construction Materials:

– Piston vacuum pumps are typically constructed with materials such as cast iron, aluminum, stainless steel, and various elastomers.

– While these materials offer good resistance to normal operating conditions, they may not be compatible with corrosive substances.

– Corrosive gases or vapors can attack and degrade the pump’s internal components, leading to reduced performance, increased wear, and potential failure.

2. Sealing and Contamination:

– Piston vacuum pumps rely on tight seals and clearances to maintain the vacuum and prevent leakage.

– Corrosive gases or vapors can degrade the seals and compromise their effectiveness.

– This can result in increased leakage, reduced pumping efficiency, and potential contamination of the pump and the surrounding environment.

3. Maintenance and Service:

– Handling corrosive gases or vapors requires specialized knowledge, materials, and maintenance procedures.

– The pump may need additional protective measures, such as corrosion-resistant coatings or specialized seal materials, to withstand the corrosive environment.

– Regular inspection, cleaning, and replacement of components may also be necessary to maintain the pump’s performance and prevent damage.

4. Alternative Pump Options:

– If corrosive gases or vapors are involved in the application, it is advisable to consider alternative pump technologies that are specifically designed to handle such substances.

– For corrosive gases, chemical-resistant pumps like diaphragm pumps, peristaltic pumps, or dry screw pumps may be more suitable.

– These pumps are constructed with materials that offer superior resistance to corrosion and can handle a wide range of corrosive substances.

– It is essential to consult the pump manufacturer or a vacuum system specialist to select the appropriate pump for handling corrosive gases or vapors.

In summary, piston vacuum pumps are generally not recommended for handling corrosive gases or vapors due to their construction materials, sealing limitations, and the potential for damage and contamination. It is crucial to choose a pump specifically designed to handle corrosive substances or consider alternative pump technologies that can provide the required chemical resistance and performance.

China supplier 2sk Single Double Stage Liquid Water-Ring Vacuum Pump Boosters Roots Rotary Van Piston Pump Replace   with Hot selling	China supplier 2sk Single Double Stage Liquid Water-Ring Vacuum Pump Boosters Roots Rotary Van Piston Pump Replace   with Hot selling
editor by Dream 2024-04-19

China Good quality 2 Stage Vacuum Pump 2fy-6c Ve-2100 V-I2120 Value Vacuum Pump vacuum pump adapter

Product Description

Product Description

The Features of Vacuum Pump:

1. Integrated body structure with high precision

2. Forced lubrication for pump to ensure the high reliabililty

3. Oil window design to avoid run out of oil

Item Single Stage Dual Stage Rotary Vane Air AC Vacuum Pump
Voltage 110V/60HZ,220V/50HZ
Oil capacity 230ml-800ml
Power 1/4HP; 1/3HP; 1/2HP; 3/4HP; 1HP
Certification CE / RoHS
Loading port ZheJiang or HangZhou
Payment terms T/T, LC
Advantages High efficienc; Attractive design; Easy to carry

Detailed Photos

 

FAQ

Q1.Are you manufacturer?
A:Yes,We are manufacture since from 2571,it is a well-know company with good reputation in China.
Q2:If I need sample, could you support?
A:We can supply sample according to your requirement.
Q3:Whats your MOQ?
A:50sets.
Q4:Can we use our logo or design in the product and cartons?
A:Yes,OEM is acceptable. We can use your logo and design in the package as your requirement.
Q5:How long will be the production time?
A: After confirm your order, the production will be 15-30 days. 
Q6:What shipping way?
A: Depend on your requirement: For urgent order with light weight, you can choose air shipping.
For heavy weight, you can choose sea shipping and save cost.
Q7: What about the payment term?
A: We accept T/T, L/C.
Q8: How can you make sure high quality product?
A: We have strong quality control team,all the raw material will be inspected before production, the final production will be inspected before shipping.

/* January 22, 2571 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1

After-sales Service: 3 Years
Warranty: 1 Years
Oil or Not: Oil
Structure: Rotary Vacuum Pump
Exhauster Method: Entrapment Vacuum Pump
Vacuum Degree: High Vacuum
Samples:
US$ 30/Piece
1 Piece(Min.Order)

|

Customization:
Available

|

Vacuum Pump

Basic knowledge of vacuum pump

A vacuum pump is used to create a relative vacuum within a sealed volume. These pumps take gas molecules out of the sealed volume and expel them, leaving a partial vacuum. They can be used in a variety of applications, including medicine and laboratory research. This article will cover the basics of vacuum pumps, including how they operate and the materials they use. You will also learn about typical applications and fees.

How it works

A vacuum pump is a pump that removes air from a specific space. These pumps are divided into three types according to their function. Positive displacement pumps are used in the low vacuum range and high vacuum pumps are used in the ultra-high vacuum range. The performance of a vacuum pump depends on the quality of the vacuum it produces.
A vacuum pump creates a partial vacuum above the surrounding atmospheric pressure. The speed of the pump is proportional to the pressure difference between the ambient atmosphere and the base pressure of the pump. Choose a base pressure for a specific process, not the lowest possible pressure in the system.
A scroll pump is also a type of vacuum pump. This type of pump consists of two scrolls, the inner scroll running around the gas volume. It then compresses the gas in a spiral fashion until it reaches the maximum pressure at its center. The inner and outer scrolls are separated by a polymer tip seal that provides an axial seal between them. Its pumping speed ranges from 5.0 to 46 m3/h.
Another type of vacuum pump is the screw pump, which uses two rotating screws in one chamber. The screw in the screw pump is a left-handed screw, and the other is a right-handed screw. The two screws do not touch each other when engaged, preventing contamination of the medium. They also feature high pumping speeds, low operating costs and low maintenance requirements.
The vacuum pump consists of several parts such as rotor and base. These components create an area of ​​low pressure. Gas and water molecules rush into this low pressure area, where they are sucked into the pump. The pump also rotates, preventing fluid leakage to the low pressure side.
The main function of a vacuum pump is to remove gas particles from an enclosed space. It does this by changing gas molecules between high and low pressure states. A vacuum pump can also generate a partial vacuum. There are several types of vacuum pumps, each designed to perform a specific function, so it is important to choose the right type for your application.

Vacuum Pump Materials

There are two main materials used in vacuum pumps: metal and polyethylene. Metal is more durable, while polyethylene is cheaper and more flexible. However, these materials are not suitable for high pressure and may cause damage. Therefore, if you want to design a high-pressure pump, it is best to use metal materials.
Vacuum pumps are required in a variety of industrial environments and manufacturing processes. The most common vacuum pump is a positive displacement vacuum pump, which transports a gas load from the inlet to the outlet. The main disadvantage of this pump is that it can only generate a partial vacuum; higher vacuums must be achieved through other techniques.
Materials used in vacuum pumps vary from high to rough vacuum pumps. Low pressure ranges are typically below 1 x 10-3 mbar, but high vacuum pumps are used for extreme vacuum. They also differ in manufacturing tolerances, seals used, materials used and operating conditions.
The choice of vacuum pump material depends on the process. The vacuum range and ultimate pressure of the system must be carefully analyzed to find the right material for the job. Depending on the purpose of the pump, a variety of materials can be used, from ceramic to plastic substrates. When choosing a vacuum pump material, be sure to consider its durability and corrosion resistance.
Dry and wet vacuum pumps use oil to lubricate internal parts. This prevents wear of the pump due to corrosion. These types of pumps are also recommended for continuous use and are ideal for applications where the gas is acidic or corrosive. Therefore, they are widely used in the chemical and food industries. They are also used in rotary evaporation and volatile compound processing.
Positive displacement pumps are the most common type. They work by letting gas flow into a cavity and venting it into the atmosphere. Additionally, momentum transfer pumps, also known as molecular pumps, use high-velocity jets of high-density fluids to transport air and gases. These pumps are also used for medical purposes.

Typical application

Vacuum pumps are used to remove large amounts of air and water from the process. They are used in various industries to improve performance. For example, liquid ring vacuum pumps are used in packaging production to produce plastic sheets in the desired shape and size. Large-capacity suction pumps are used in the chemical industry to improve the surface properties of materials and speed up filtration.
There are two basic principles of vacuum pumps: entrapment and gas transfer. Positive displacement pumps are suitable for low to medium vacuums, while momentum transfer and retention pumps are suitable for high vacuums. Typically, high vacuum systems use two or more pumps working in series.
There are three main categories of vacuum pumps: primary, booster, and secondary. Their working pressure ranges from a few millimeters above atmospheric pressure. They also have several different technologies, including positive displacement, gas transfer, and gas capture. These pumps transport gas molecules through momentum exchange. Typically, they release gas molecules at roughly the same rate as they entered. When the process is complete, the gas molecules are slightly above atmospheric pressure. The discharge pressure is equal to the lowest pressure achieved, which is the compression ratio.
Vacuum pumps are widely used in all walks of life. They can be found in almost every industrial sector, including food processing. For example, they are used to make sausages and food products. In addition, they are used in landfill and digester compressors. They can also be used to build solar panels.
Oil lubricated vacuum pumps are currently the most energy-efficient vacuum pumps. These pumps are suitable for a variety of industrial applications including freeze drying and process engineering. These pumps use oil as a sealant and coolant, which makes them ideal for a variety of applications. These pumps are also very sensitive to vibration.
Another type of vacuum pump is a turbomolecular pump. These pumps have multiple stages and angled vanes. Unlike mechanical pumps, turbomolecular pumps sweep out larger areas at higher pumping speeds. In addition, they can generate ultra-high oil-free vacuums. Additionally, they have no moving parts, which makes them ideal for high vacuum pressures.
Vacuum Pump

Vacuum Pump Cost

Annual maintenance costs for vacuum pumps range from $242 to $337. The energy consumption of the vacuum pump is also a consideration, as it consumes electricity throughout its operating cycle. For example, an electric motor for a 1 hp pump uses 0.55 kW/hr, which equates to 2,200 kWh of energy per year.
Energy cost is the largest part of the total cost of a vacuum pump. They are usually four to five times higher than the initial purchase price. Therefore, choosing a more energy efficient system can reduce the total cost of ownership and extend the payback period. For many clients, this can be millions of dollars.
A vacuum pump works by compressing gas as it enters a chamber. This pushes the gas molecules towards the exhaust. The exhaust gas is then vented to the atmosphere. A special spring-loaded vane seals the pump’s chamber, creating an airtight seal. Specially formulated oils are also used to lubricate, cool and seal rotors.
Vacuum pumps are not cheap, but they have many advantages over water suction. One of the main advantages of vacuum pumps is their flexibility and reliability. This is an industry-proven solution that has been around for years. However, the initial cost of a vacuum pump is higher than that of a water aspirator.
If the vacuum pump fails unexpectedly, replacement costs can be high. Proper maintenance can extend the life of your system and prevent unplanned downtime. However, no one can predict when a pump will fail, and if a pump does fail, the cost can far exceed the cost of buying a new pump. Therefore, investing in preventive maintenance is a wise investment.
There are many types of vacuum pumps, not all of which are suitable for the same type of application. Make sure to choose a pump with the power required for the job. It should also be able to handle a variety of samples.

China Good quality 2 Stage Vacuum Pump 2fy-6c Ve-2100 V-I2120 Value Vacuum Pump   vacuum pump adapter	China Good quality 2 Stage Vacuum Pump 2fy-6c Ve-2100 V-I2120 Value Vacuum Pump   vacuum pump adapter
editor by CX 2024-04-17

China factory Dlv 180 Direct Driven Double Stage Water Ring Vacuum Air Pump with Hot selling

Product Description

Application scope and characteristics:

Greentech International (Xihu (West Lake) Dis.) Co., Ltd is the professional vacuum pump supplier. 2BE1 series water ring vacuum pumps and compressors are the products with high efficiency and economic power, which are manufactured by our company integrating with the advanced technology of the imported products from Germany.

These series products adopt CHINAMFG and single action structure and have many advantages, such as, compact structure, convenient maintenance, reliable running, high efficiency and economic power.

The main characteristics of 2BE1 series products:

All the bearings are the imported products with the brand name of CHINAMFG orNTN for ensuring the precise orientation and the high stability during the working of the pump.

The material of the impeller is QT400 nodular iron or stainless steel for ensuring the stability when the pump works under the rigorous condition and can extend the lifetime of the pump.

The casing is made of steel or stainless steel plates to extend the lifetime of the 2BE1 series pumps.

The shaft bushing is made of stainless steel to improve the lifetime of the pump 5 times than the normal material.

The V-belt pulley (when the pump is driven by the belt) is used the high precise pulley with taper bushing to keep the reliability of the pump and extend its life. And it is also easy to mantle and dismantle.

The coupling is used to drive the pump directly. The flexible part connecting the 2 half coupling is made of polyurethane that makes the pump more reliable.

The unique design to set the separator above the pump saves the space and decreases the noise efficiently.

All the parts are cast by the resin sands that make the pump surface very smooth. It is not necessary to cover the surface of the pumps with putty and gives out the heat efficiently.

The mechanical seals (optional) are used the imported products to avoid the leakage when the pump works for a long time.

Type Speed
(Drive type)
r/min
Shaft power
kW
Motor power
kW
Motor
type
Limited vacuum
mbar
  Weight
(Whole set)
kg
Suction capacity
m 3 /h m 3 /min
2BE1 151-0 1450(D)
1100(V)
1300(V)
1625(V)
1750(V)
10.8
7.2
9.2
13.2
14.8
15
11
11
15
18.5
Y160L-4
Y160M-4
Y160M-4
Y160L-4
Y180M-4
33mbar
(-0.098MPa)
405
300
360
445
470
6.8
5.0
6.0
7.4
7.8
469
428
444
469
503
2BE1 152-0 1450(D)
1100(V)
1300(V)
1625(V)
1750(V)
12.5
8.3
10.5
15.0
17.2
15
11
15
18.5
22
Y160L-4
Y160M-4
Y160L-4
Y180M-4
Y180L-4
33mbar
(-0.098MPa)
465
340
415
510
535
7.8
5.7
6.9
8.5
8.9
481
437
481
515
533
2BE1 153-0 1450(D)
1100(V)
1300(V)
1625(V)
1750(V)
16.3
10.6
13.6
19.6
22.3
18.5
15
18.5
22
30
Y180M-4
Y160L-4
Y180M-4
Y180L-4
Y200L-4
33mbar
(-0.098MPa)
600
445
540
660
700
10.0
7.4
9.0
11.0
11.7
533
480
533
551
601
2BE1 202-0 970(D)
790(V)
880(v)
1100(V)
1170(V)
1300(V)
17
14
16
22
25
30
22
18.5
18.5
30
30
37
Y200L2-6
Y180M-4
Y180M-4
Y200L-4
Y200L-4
Y225S-4
33mbar
(-0.098MPa)
760
590
670
850
890
950
12.7
9.8
11.2
14.2
14.8
15.8
875
850
850
940
945
995
2BE1 203-0 970(D)
790(V)
880(V)
1100(V)
1170(V)
1300(V)
27
20
23
33
37
45
37
30
30
45
45
55
Y250M-6
Y200L-4
Y200L-4
Y225M-4
Y225M-4
Y250M-4
33mbar
(-0.098MPa)
1120
880
1000
1270
1320
1400
18.7
14.7
16.7
21.2
22.0
23.3
1065
995
995
1080
1085
1170
2BE1 252-0 740(D)
558(V)
660(V)
832(V)
885(V)
938(V)
38
26
31.8
49
54
60
45
30
37
55
75
75
Y280M-8
Y200L-4
Y225S-4
Y250M-4
Y280S-4
Y280S-4
33mbar
(-0.098MPa)
1700
1200
1500
1850
2000
2100
28.3
20.0
25.0
30.8
33.3
35.0
1693
1460
1515
1645
1805
1805
2BE1 253-0 740(D)
560(V)
660(V)
740(V)
792(V)
833(V)
885(V)
938(V)
54
37
45
54
60
68
77
86
75
45
55
75
75
90
90
110
Y315M-8
Y225M-4
Y250M-4
Y280S-4
Y280S-4
Y280M-4
Y280M-4
Y315S-4
33mbar
(-0.098MPa)
2450
1750
2140
2450
2560
2700
2870
3571
40.8
29.2
35.7
40.8
42.7
45.0
47.8
50.3
2215
1695
1785
1945
1945
2055
2060
2295
2BE1 303-0 740(D)
590(D)
466(V)
521(V)
583(V)
657(V)
743(V)
98
65
48
54
64
78
99
110
75
55
75
75
90
132
Y315L2-8
Y315L2-10
Y250M-4
Y280S-4
Y280S-4
Y280M-4
Y315M-4
33mbar
(-0.098MPa)
4000
3200
2500
2800
3100
3580
4000
66.7
53.3
41.7
46.7
51.7
59.7
66.7
3200
3200
2645
2805
2810
2925
3290
2BE1 305-1
2BE1 306-1
740(D)
590(D)
490(V)
521(V)
583(V)
657(V)
743(V)
102
70
55
59
68
84
103
132
90
75
75
90
110
132
Y355M1-8
Y355M1-10
Y280S-4
Y280S-4
Y280M-4
Y315S-4
Y315M-4
160mbar
(-0.085MPa)
4650
3750
3150
3320
3700
4130
4650
77.5
62.5
52.5
55.3
61.2
68.8
77.5
3800
3800
2950
3000
3100
3300
3450
2BE1 353-0 590(D)
390(V)
415(V)
464(V)
520(V)
585(V)
620(V)
660(V)
121
65
70
81
97
121
133
152
160
75
90
110
132
160
160
185
Y355L2-10
Y280S-4
Y280M-4
Y315S-4
Y315M-4
Y315L1-4
Y315L1-4
Y315L2-4
33mbar
(-0.098MPa)
5300
3580
3700
4100
4620
5200
5500
5850
88.3
59.7
61.7
68.3
77.0
86.7
91.7
97.5
4750
3560
3665
3905
4040
4100
4100
4240
2BE1 355-1
2BE1 356-1
590(D)
390(V)
435(V)
464(V)
520(V)
555(V)
585(V)
620(V)
130
75
86
90
102
115
130
145
160
90
110
110
132
132
160
185
Y355L2-10
Y280M-4
Y315S-4
Y315S-4
Y315M-4
Y315M-4
Y315L1-4
Y315L2-4
160mbar
(-0.085MPa)
6200
4180
4600
4850
5450
5800
6100
6350
103.3
69.7
76.7
80.8
90.8
98.3
101.7
105.8
5000
3920
4150
4160
4290
4300
4350
4450
2BE1 403-0 330(V)
372(V)
420(V)
472(V)
530(V)
565(V)
97
110
131
160
203
234
132
132
160
200
250
280
Y315M-4
Y315M-4
Y315L1-4
Y315L2-4
Y355M2-4
Y355L1-4
33mbar
(-0.098MPa)
5160
5700 6470
7380
8100
8600
86.0
95.0
107.8
123.0
135.0
143.3
5860
5870
5950
6190
6630
6800
2BE1 405-1
2BE1 406-1
330(V)
372(V)
420(V)
472(V)
530(V)
565(V)
100
118
140
170
206
235
132
160
185
200
250
280
Y315M-4
Y315L1-4
Y315L2-4
Y315L2-4
Y355M2-4
Y355L1-4
160mbar
(-0.085MPa)
6000
6700
7500
8350
9450
15710
100.0
111.7
125.0
139.2
157.5
168.3
5980
6070
6200
6310
6750
6920

/* January 22, 2571 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1

Oil or Not: Oil Free
Structure: Rotary Vacuum Pump
Exhauster Method: Kinetic Vacuum Pump
Vacuum Degree: High Vacuum
Work Function: Pre-Suction Pump
Working Conditions: Wet
Customization:
Available

|

vacuum pump

What Is the Impact of Altitude on Vacuum Pump Performance?

The performance of vacuum pumps can be influenced by the altitude at which they are operated. Here’s a detailed explanation:

Altitude refers to the elevation or height above sea level. As the altitude increases, the atmospheric pressure decreases. This decrease in atmospheric pressure can have several effects on the performance of vacuum pumps:

1. Reduced Suction Capacity: Vacuum pumps rely on the pressure differential between the suction side and the discharge side to create a vacuum. At higher altitudes, where the atmospheric pressure is lower, the pressure differential available for the pump to work against is reduced. This can result in a decrease in the suction capacity of the vacuum pump, meaning it may not be able to achieve the same level of vacuum as it would at lower altitudes.

2. Lower Ultimate Vacuum Level: The ultimate vacuum level, which represents the lowest pressure that a vacuum pump can achieve, is also affected by altitude. As the atmospheric pressure decreases with increasing altitude, the ultimate vacuum level that can be attained by a vacuum pump is limited. The pump may struggle to reach the same level of vacuum as it would at sea level or lower altitudes.

3. Pumping Speed: Pumping speed is a measure of how quickly a vacuum pump can remove gases from a system. At higher altitudes, the reduced atmospheric pressure can lead to a decrease in pumping speed. This means that the vacuum pump may take longer to evacuate a chamber or system to the desired vacuum level.

4. Increased Power Consumption: To compensate for the decreased pressure differential and achieve the desired vacuum level, a vacuum pump operating at higher altitudes may require higher power consumption. The pump needs to work harder to overcome the lower atmospheric pressure and maintain the necessary suction capacity. This increased power consumption can impact energy efficiency and operating costs.

5. Efficiency and Performance Variations: Different types of vacuum pumps may exhibit varying degrees of sensitivity to altitude. Oil-sealed rotary vane pumps, for example, may experience more significant performance variations compared to dry pumps or other pump technologies. The design and operating principles of the vacuum pump can influence its ability to maintain performance at higher altitudes.

It’s important to note that vacuum pump manufacturers typically provide specifications and performance curves for their pumps based on standardized conditions, often at or near sea level. When operating a vacuum pump at higher altitudes, it is advisable to consult the manufacturer’s guidelines and consider any altitude-related limitations or adjustments that may be necessary.

In summary, the altitude at which a vacuum pump operates can have an impact on its performance. The reduced atmospheric pressure at higher altitudes can result in decreased suction capacity, lower ultimate vacuum levels, reduced pumping speed, and potentially increased power consumption. Understanding these effects is crucial for selecting and operating vacuum pumps effectively in different altitude environments.

vacuum pump

Can Vacuum Pumps Be Used for Leak Detection?

Yes, vacuum pumps can be used for leak detection purposes. Here’s a detailed explanation:

Leak detection is a critical task in various industries, including manufacturing, automotive, aerospace, and HVAC. It involves identifying and locating leaks in a system or component that may result in the loss of fluids, gases, or pressure. Vacuum pumps can play a significant role in leak detection processes by creating a low-pressure environment and facilitating the detection of leaks through various methods.

Here are some ways in which vacuum pumps can be used for leak detection:

1. Vacuum Decay Method: The vacuum decay method is a common technique used for leak detection. It involves creating a vacuum in a sealed system or component using a vacuum pump and monitoring the pressure change over time. If there is a leak present, the pressure will gradually increase due to the ingress of air or gas. By measuring the rate of pressure rise, the location and size of the leak can be estimated. Vacuum pumps are used to evacuate the system and establish the initial vacuum required for the test.

2. Bubble Testing: Bubble testing is a simple and visual method for detecting leaks. In this method, the component or system being tested is pressurized with a gas, and then immersed in a liquid, typically soapy water. If there is a leak, the gas escaping from the component will form bubbles in the liquid, indicating the presence and location of the leak. Vacuum pumps can be used to create a pressure differential that forces gas out of the leak, making it easier to detect the bubbles.

3. Helium Leak Detection: Helium leak detection is a highly sensitive method used to locate extremely small leaks. Helium, being a small atom, can easily penetrate small openings and leaks. In this method, the system or component is pressurized with helium gas, and a vacuum pump is used to evacuate the surrounding area. A helium leak detector is then used to sniff or scan the area for the presence of helium, indicating the location of the leak. Vacuum pumps are essential for creating the low-pressure environment required for this method and ensuring accurate detection.

4. Pressure Change Testing: Vacuum pumps can also be used in pressure change testing for leak detection. This method involves pressurizing a system or component and then isolating it from the pressure source. The pressure is monitored over time, and any significant pressure drop indicates the presence of a leak. Vacuum pumps can be used to evacuate the system after pressurization, returning it to atmospheric pressure for comparison or retesting.

5. Mass Spectrometer Leak Detection: Mass spectrometer leak detection is a highly sensitive and precise method used to identify and quantify leaks. It involves introducing a tracer gas, usually helium, into the system or component being tested. A vacuum pump is used to evacuate the surrounding area, and a mass spectrometer is employed to analyze the gas samples for the presence of the tracer gas. This method allows for accurate detection and quantification of leaks down to very low levels. Vacuum pumps are crucial for creating the necessary vacuum conditions and ensuring reliable results.

In summary, vacuum pumps can be effectively used for leak detection purposes. They facilitate various leak detection methods such as vacuum decay, bubble testing, helium leak detection, pressure change testing, and mass spectrometer leak detection. Vacuum pumps create the required low-pressure environment, assist in evacuating the system or component being tested, and enable accurate and reliable leak detection. The choice of vacuum pump depends on the specific requirements of the leak detection method and the sensitivity needed for the application.

vacuum pump

What Industries Commonly Rely on Vacuum Pump Technology?

Vacuum pump technology finds applications in various industries where creating and controlling vacuum or low-pressure environments is crucial. Here’s a detailed explanation:

1. Manufacturing and Production: Vacuum pumps are extensively used in manufacturing and production processes across multiple industries. They are employed for tasks such as vacuum molding, vacuum packaging, vacuum degassing, vacuum drying, and vacuum distillation. Industries like automotive, aerospace, electronics, pharmaceuticals, and food processing rely on vacuum pump technology to achieve precise and controlled manufacturing conditions.

2. Chemical and Pharmaceutical: The chemical and pharmaceutical industries heavily rely on vacuum pumps for numerous applications. These include solvent recovery, vacuum filtration, vacuum drying, distillation, crystallization, and evaporation. Vacuum pumps enable these industries to carry out critical processes under reduced pressure, ensuring efficient separation, purification, and synthesis of various chemical compounds and pharmaceutical products.

3. Semiconductor and Electronics: The semiconductor and electronics industries extensively use vacuum pumps for manufacturing microchips, electronic components, and electronic devices. Vacuum pumps are crucial in processes such as physical vapor deposition (PVD), chemical vapor deposition (CVD), etching, ion implantation, and sputtering. These processes require controlled vacuum conditions to ensure precise deposition, surface modification, and contamination-free manufacturing.

4. Research and Development: Vacuum pump technology is integral to research and development activities across scientific disciplines. It supports experiments and investigations in fields such as physics, chemistry, materials science, biology, and environmental science. Vacuum pumps facilitate processes like freeze drying, vacuum distillation, vacuum evaporation, vacuum spectroscopy, and creating controlled atmospheric conditions for studying various phenomena.

5. Food and Beverage: The food and beverage industry relies on vacuum pumps for packaging and preservation purposes. Vacuum sealing is used to extend the shelf life of food products by removing air and creating a vacuum-sealed environment that inhibits spoilage and maintains freshness. Vacuum pumps are also used in processes like freeze drying, vacuum concentration, and vacuum cooling.

6. Oil and Gas: In the oil and gas industry, vacuum pumps play a role in various applications. They are used for crude oil vacuum distillation, vacuum drying, vapor recovery, gas compression, and gas stripping processes. Vacuum pumps help maintain optimal conditions during oil refining, gas processing, and petrochemical manufacturing.

7. Environmental and Waste Management: Vacuum pumps are employed in environmental and waste management applications. They are used for tasks such as soil vapor extraction, groundwater remediation, landfill gas recovery, and wastewater treatment. Vacuum pumps facilitate the removal and containment of gases, vapors, and pollutants, contributing to environmental protection and sustainable waste management.

8. Medical and Healthcare: The medical and healthcare sectors utilize vacuum pumps for various purposes. They are used in medical equipment such as vacuum-assisted wound therapy devices, vacuum-based laboratory analyzers, and vacuum suction systems in hospitals and clinics. Vacuum pumps are also used in medical research, pharmaceutical production, and medical device manufacturing.

9. Power Generation: Vacuum pumps play a role in power generation industries, including nuclear power plants and thermal power plants. They are used for steam condensation, turbine blade cooling, vacuum drying during transformer manufacturing, and vacuum systems for testing and maintenance of power plant equipment.

10. HVAC and Refrigeration: The HVAC (Heating, Ventilation, and Air Conditioning) and refrigeration industries rely on vacuum pumps for system installation, maintenance, and repair. Vacuum pumps are used to evacuate air and moisture from refrigerant lines and HVAC systems, ensuring optimal system performance and efficiency.

These are just a few examples of industries that commonly rely on vacuum pump technology. The versatility and wide-ranging applications of vacuum pumps make them indispensable tools across numerous sectors, enabling precise control over vacuum conditions, efficient manufacturing processes, and scientific investigations.

China factory Dlv 180 Direct Driven Double Stage Water Ring Vacuum Air Pump   with Hot selling	China factory Dlv 180 Direct Driven Double Stage Water Ring Vacuum Air Pump   with Hot selling
editor by CX 2024-04-13

China Good quality 2 Stage Vacuum Pump 2fy-6c Ve-2100 V-I2120 Value Vacuum Pump vacuum pump for ac

Product Description

Product Description

The Features of Vacuum Pump:

1. Integrated body structure with high precision

2. Forced lubrication for pump to ensure the high reliabililty

3. Oil window design to avoid run out of oil

Item Single Stage Dual Stage Rotary Vane Air AC Vacuum Pump
Voltage 110V/60HZ,220V/50HZ
Oil capacity 230ml-800ml
Power 1/4HP; 1/3HP; 1/2HP; 3/4HP; 1HP
Certification CE / RoHS
Loading port ZheJiang or HangZhou
Payment terms T/T, LC
Advantages High efficienc; Attractive design; Easy to carry

Detailed Photos

 

FAQ

Q1.Are you manufacturer?
A:Yes,We are manufacture since from 2571,it is a well-know company with good reputation in China.
Q2:If I need sample, could you support?
A:We can supply sample according to your requirement.
Q3:Whats your MOQ?
A:50sets.
Q4:Can we use our logo or design in the product and cartons?
A:Yes,OEM is acceptable. We can use your logo and design in the package as your requirement.
Q5:How long will be the production time?
A: After confirm your order, the production will be 15-30 days. 
Q6:What shipping way?
A: Depend on your requirement: For urgent order with light weight, you can choose air shipping.
For heavy weight, you can choose sea shipping and save cost.
Q7: What about the payment term?
A: We accept T/T, L/C.
Q8: How can you make sure high quality product?
A: We have strong quality control team,all the raw material will be inspected before production, the final production will be inspected before shipping.

After-sales Service: 3 Years
Warranty: 1 Years
Oil or Not: Oil
Structure: Rotary Vacuum Pump
Exhauster Method: Entrapment Vacuum Pump
Vacuum Degree: High Vacuum
Samples:
US$ 30/Piece
1 Piece(Min.Order)

|

Customization:
Available

|

vacuum pump

What Is the Impact of Altitude on Vacuum Pump Performance?

The performance of vacuum pumps can be influenced by the altitude at which they are operated. Here’s a detailed explanation:

Altitude refers to the elevation or height above sea level. As the altitude increases, the atmospheric pressure decreases. This decrease in atmospheric pressure can have several effects on the performance of vacuum pumps:

1. Reduced Suction Capacity: Vacuum pumps rely on the pressure differential between the suction side and the discharge side to create a vacuum. At higher altitudes, where the atmospheric pressure is lower, the pressure differential available for the pump to work against is reduced. This can result in a decrease in the suction capacity of the vacuum pump, meaning it may not be able to achieve the same level of vacuum as it would at lower altitudes.

2. Lower Ultimate Vacuum Level: The ultimate vacuum level, which represents the lowest pressure that a vacuum pump can achieve, is also affected by altitude. As the atmospheric pressure decreases with increasing altitude, the ultimate vacuum level that can be attained by a vacuum pump is limited. The pump may struggle to reach the same level of vacuum as it would at sea level or lower altitudes.

3. Pumping Speed: Pumping speed is a measure of how quickly a vacuum pump can remove gases from a system. At higher altitudes, the reduced atmospheric pressure can lead to a decrease in pumping speed. This means that the vacuum pump may take longer to evacuate a chamber or system to the desired vacuum level.

4. Increased Power Consumption: To compensate for the decreased pressure differential and achieve the desired vacuum level, a vacuum pump operating at higher altitudes may require higher power consumption. The pump needs to work harder to overcome the lower atmospheric pressure and maintain the necessary suction capacity. This increased power consumption can impact energy efficiency and operating costs.

5. Efficiency and Performance Variations: Different types of vacuum pumps may exhibit varying degrees of sensitivity to altitude. Oil-sealed rotary vane pumps, for example, may experience more significant performance variations compared to dry pumps or other pump technologies. The design and operating principles of the vacuum pump can influence its ability to maintain performance at higher altitudes.

It’s important to note that vacuum pump manufacturers typically provide specifications and performance curves for their pumps based on standardized conditions, often at or near sea level. When operating a vacuum pump at higher altitudes, it is advisable to consult the manufacturer’s guidelines and consider any altitude-related limitations or adjustments that may be necessary.

In summary, the altitude at which a vacuum pump operates can have an impact on its performance. The reduced atmospheric pressure at higher altitudes can result in decreased suction capacity, lower ultimate vacuum levels, reduced pumping speed, and potentially increased power consumption. Understanding these effects is crucial for selecting and operating vacuum pumps effectively in different altitude environments.

vacuum pump

What Is the Role of Vacuum Pumps in Pharmaceutical Manufacturing?

Vacuum pumps play a crucial role in various aspects of pharmaceutical manufacturing. Here’s a detailed explanation:

Vacuum pumps are extensively used in pharmaceutical manufacturing processes to support a range of critical operations. Some of the key roles of vacuum pumps in pharmaceutical manufacturing include:

1. Drying and Evaporation: Vacuum pumps are employed in drying and evaporation processes within the pharmaceutical industry. They facilitate the removal of moisture or solvents from pharmaceutical products or intermediates. Vacuum drying chambers or evaporators utilize vacuum pumps to create low-pressure conditions, which lower the boiling points of liquids, allowing them to evaporate at lower temperatures. By applying vacuum, moisture or solvents can be efficiently removed from substances such as active pharmaceutical ingredients (APIs), granules, powders, or coatings, ensuring the desired product quality and stability.

2. Filtration and Filtrate Recovery: Vacuum pumps are used in filtration processes for the separation of solid-liquid mixtures. Vacuum filtration systems typically employ a filter medium, such as filter paper or membranes, to retain solids while allowing the liquid portion to pass through. By applying vacuum to the filtration apparatus, the liquid is drawn through the filter medium, leaving behind the solids. Vacuum pumps facilitate efficient filtration, speeding up the process and improving product quality. Additionally, vacuum pumps can aid in filtrate recovery by collecting and transferring the filtrate for further processing or reuse.

3. Distillation and Purification: Vacuum pumps are essential in distillation and purification processes within the pharmaceutical industry. Distillation involves the separation of liquid mixtures based on their different boiling points. By creating a vacuum environment, vacuum pumps lower the boiling points of the components, allowing them to vaporize and separate more easily. This enables efficient separation and purification of pharmaceutical compounds, including the removal of impurities or the isolation of specific components. Vacuum pumps are utilized in various distillation setups, such as rotary evaporators or thin film evaporators, to achieve precise control over the distillation conditions.

4. Freeze Drying (Lyophilization): Vacuum pumps are integral to the freeze drying process, also known as lyophilization. Lyophilization is a dehydration technique that involves the removal of water or solvents from pharmaceutical products while preserving their structure and integrity. Vacuum pumps create a low-pressure environment in freeze drying chambers, allowing the frozen product to undergo sublimation. During sublimation, the frozen water or solvent directly transitions from the solid phase to the vapor phase, bypassing the liquid phase. Vacuum pumps facilitate efficient and controlled sublimation, leading to the production of stable, shelf-stable pharmaceutical products with extended shelf life.

5. Tablet and Capsule Manufacturing: Vacuum pumps are utilized in tablet and capsule manufacturing processes. They are involved in the creation of vacuum within tablet presses or capsule filling machines. By applying vacuum, the air is removed from the die cavity or capsule cavity, allowing for the precise filling of powders or granules. Vacuum pumps contribute to the production of uniform and well-formed tablets or capsules by ensuring accurate dosing and minimizing air entrapment, which can affect the final product quality.

6. Sterilization and Decontamination: Vacuum pumps are employed in sterilization and decontamination processes within the pharmaceutical industry. Autoclaves and sterilizers utilize vacuum pumps to create a vacuum environment before introducing steam or chemical sterilants. By removing air or gases from the chamber, vacuum pumps assist in achieving effective sterilization or decontamination by enhancing the penetration and distribution of sterilants. Vacuum pumps also aid in the removal of sterilants and residues after the sterilization process is complete.

It’s important to note that different types of vacuum pumps, such as rotary vane pumps, dry screw pumps, or liquid ring pumps, may be utilized in pharmaceutical manufacturing depending on the specific requirements of the process and the compatibility with pharmaceutical products.

In summary, vacuum pumps play a vital role in various stages of pharmaceutical manufacturing, including drying and evaporation, filtration and filtrate recovery, distillation and purification, freeze drying (lyophilization), tablet and capsule manufacturing, as well as sterilization and decontamination. By enabling efficient and controlled processes, vacuum pumps contribute to the production of high-quality pharmaceutical products, ensuring the desired characteristics, stability, and safety.

vacuum pump

What Industries Commonly Rely on Vacuum Pump Technology?

Vacuum pump technology finds applications in various industries where creating and controlling vacuum or low-pressure environments is crucial. Here’s a detailed explanation:

1. Manufacturing and Production: Vacuum pumps are extensively used in manufacturing and production processes across multiple industries. They are employed for tasks such as vacuum molding, vacuum packaging, vacuum degassing, vacuum drying, and vacuum distillation. Industries like automotive, aerospace, electronics, pharmaceuticals, and food processing rely on vacuum pump technology to achieve precise and controlled manufacturing conditions.

2. Chemical and Pharmaceutical: The chemical and pharmaceutical industries heavily rely on vacuum pumps for numerous applications. These include solvent recovery, vacuum filtration, vacuum drying, distillation, crystallization, and evaporation. Vacuum pumps enable these industries to carry out critical processes under reduced pressure, ensuring efficient separation, purification, and synthesis of various chemical compounds and pharmaceutical products.

3. Semiconductor and Electronics: The semiconductor and electronics industries extensively use vacuum pumps for manufacturing microchips, electronic components, and electronic devices. Vacuum pumps are crucial in processes such as physical vapor deposition (PVD), chemical vapor deposition (CVD), etching, ion implantation, and sputtering. These processes require controlled vacuum conditions to ensure precise deposition, surface modification, and contamination-free manufacturing.

4. Research and Development: Vacuum pump technology is integral to research and development activities across scientific disciplines. It supports experiments and investigations in fields such as physics, chemistry, materials science, biology, and environmental science. Vacuum pumps facilitate processes like freeze drying, vacuum distillation, vacuum evaporation, vacuum spectroscopy, and creating controlled atmospheric conditions for studying various phenomena.

5. Food and Beverage: The food and beverage industry relies on vacuum pumps for packaging and preservation purposes. Vacuum sealing is used to extend the shelf life of food products by removing air and creating a vacuum-sealed environment that inhibits spoilage and maintains freshness. Vacuum pumps are also used in processes like freeze drying, vacuum concentration, and vacuum cooling.

6. Oil and Gas: In the oil and gas industry, vacuum pumps play a role in various applications. They are used for crude oil vacuum distillation, vacuum drying, vapor recovery, gas compression, and gas stripping processes. Vacuum pumps help maintain optimal conditions during oil refining, gas processing, and petrochemical manufacturing.

7. Environmental and Waste Management: Vacuum pumps are employed in environmental and waste management applications. They are used for tasks such as soil vapor extraction, groundwater remediation, landfill gas recovery, and wastewater treatment. Vacuum pumps facilitate the removal and containment of gases, vapors, and pollutants, contributing to environmental protection and sustainable waste management.

8. Medical and Healthcare: The medical and healthcare sectors utilize vacuum pumps for various purposes. They are used in medical equipment such as vacuum-assisted wound therapy devices, vacuum-based laboratory analyzers, and vacuum suction systems in hospitals and clinics. Vacuum pumps are also used in medical research, pharmaceutical production, and medical device manufacturing.

9. Power Generation: Vacuum pumps play a role in power generation industries, including nuclear power plants and thermal power plants. They are used for steam condensation, turbine blade cooling, vacuum drying during transformer manufacturing, and vacuum systems for testing and maintenance of power plant equipment.

10. HVAC and Refrigeration: The HVAC (Heating, Ventilation, and Air Conditioning) and refrigeration industries rely on vacuum pumps for system installation, maintenance, and repair. Vacuum pumps are used to evacuate air and moisture from refrigerant lines and HVAC systems, ensuring optimal system performance and efficiency.

These are just a few examples of industries that commonly rely on vacuum pump technology. The versatility and wide-ranging applications of vacuum pumps make them indispensable tools across numerous sectors, enabling precise control over vacuum conditions, efficient manufacturing processes, and scientific investigations.

China Good quality 2 Stage Vacuum Pump 2fy-6c Ve-2100 V-I2120 Value Vacuum Pump   vacuum pump for ac	China Good quality 2 Stage Vacuum Pump 2fy-6c Ve-2100 V-I2120 Value Vacuum Pump   vacuum pump for ac
editor by CX 2023-12-12