China Hot selling Vacuum Pump Rotary Roots Liquid-Ring Water Piston Dry Portable Screw Scroll Reciprocating Diaphragm Centrifugal Positive Displacement DC AC Air Vacuum Pump vacuum pump

Product Description

Vacuum pump Roots Liquid-ring water piston Rotary Dry portable Screw scroll Reciprocating diaphragm centrifugal positive displacement AC DC Air vacuum pump

VP roots vacuum pump is in the 50 Torr-micron high vacuum range has a large pumping speed and low cost of equipment, it can be combined with various vacuum pump consists of a vacuum unit. KMBD roots vacuum pump with 5 point bearing design unique, sealing the five bit machine, sealing double sealing structure + mechanical seal for Teflon maze, can realize non leakage, reduce maintenance and repair of the link, ensure the roots pump and durable. Synchronous helical gear and mounted on the driving end, both to ensure quiet and reliable operation, and can reduce the load of the rotor torque. Impeller and shaft integrally cast, can provide large size shaft, impeller and reduce the risk of damage. All contact with the sealing surface of the shaft end faces are polished to reduce wear and reduce the risk of leakage, high temperature high pressure casing, and double tank design, a variety of material selection, further to ensure that the use of the user in various working conditions. Typical application: chemical, petrochemical, plastics, semiconductors, wood mixture, food processing, vacuum furnace, vacuum booster system, vacuum drying, vacuum dewatering, vacuum packaging

Typical Applications

Special structures working principles,suitable for operation in chemical industry,oil industry,food industry,electrical utility industry,pharmacy industry,textile industry and paper making industry,etc. The other industries that need vacuum drying,concentration,distilling,dehydration and filtering also need the water-ring vacuum pump. It can be use as a backing pump of Roots Pump.


Model Capacity Ultimate Pressure Power speed
VP200 200 0.05 4 2900
VP600 600 0.05 7.5 2900


Characteristic Curves


Overall Dimensions


company information


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Oil or Not: Optional
Inlet Diam. (mm): 100/200mm
Motor Power (Kw): 4/7.5 Kw
Ultimate Pressure (PA): 0.05
Transport Package: Wooden Case
Trademark: OEM
US$ 999/Piece
1 Piece(Min.Order)


piston vacuum pump

Can Piston Vacuum Pumps Create a Deep Vacuum?

Yes, piston vacuum pumps have the capability to create a deep vacuum. Here’s a detailed explanation:

Piston vacuum pumps are designed to generate and maintain a vacuum by using a reciprocating piston mechanism. They can achieve vacuum levels ranging from millitorr (10-3 Torr) to microns (10-6 Torr), which is considered a deep vacuum range.

When the piston moves downward during the suction stroke, it creates a vacuum within the cylinder. This allows gas or air from the system being evacuated to enter the cylinder. As the piston moves up during the compression stroke, the gas is expelled from the cylinder, reducing its volume and increasing its pressure. This cyclic process continues, gradually reducing the pressure within the system.

One of the factors that contribute to the ability of piston vacuum pumps to create a deep vacuum is the use of an airtight seal between the piston and cylinder walls. This seal prevents the gas from leaking back into the evacuated system, allowing the pump to maintain the desired vacuum level.

It’s important to note that the achievable vacuum level of a piston vacuum pump can depend on various factors, including the design of the pump, the materials used, the quality of the seals, and the operating conditions. Additionally, the flow rate of the pump may be lower compared to other types of vacuum pumps, as piston pumps are typically designed for applications that require low flow rates but high vacuum levels.

In summary, piston vacuum pumps can create a deep vacuum in the millitorr to micron range. With their reciprocating piston mechanism and airtight seals, they are capable of generating and maintaining a vacuum suitable for applications that require deep vacuum conditions.

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

What Are the Differences Between Single-Stage and Two-Stage Piston Vacuum Pumps?

Single-stage and two-stage piston vacuum pumps are two common types of pumps used for creating a vacuum. Here’s a detailed explanation of their differences:

1. Number of Stages:

– The primary difference between single-stage and two-stage piston vacuum pumps lies in the number of stages or steps involved in the compression process.

– A single-stage pump has a single piston that compresses the gas in one stroke.

– In contrast, a two-stage pump consists of two pistons arranged in series, allowing the gas to be compressed in two stages.

2. Compression Ratio:

– Single-Stage: In a single-stage piston vacuum pump, the compression ratio is limited to the single stroke of the piston. This means that the pump can achieve a compression ratio of approximately 10:1.

– Two-Stage: In a two-stage piston vacuum pump, the compression ratio is significantly higher. The first stage compresses the gas, and then it passes through an intermediate chamber before entering the second stage for further compression. This allows for a higher compression ratio, typically around 100:1.

3. Vacuum Level:

– Single-Stage: Single-stage piston vacuum pumps are generally suitable for applications that require moderate vacuum levels.

– They can achieve vacuum levels up to approximately 10-3 Torr (millitorr) or in the low micron range (10-6 Torr).

– Two-Stage: Two-stage piston vacuum pumps are capable of reaching deeper vacuum levels compared to single-stage pumps.

– They can achieve vacuum levels in the high vacuum range, typically down to 10-6 Torr or even lower, making them suitable for applications that require a more extensive vacuum.

4. Pumping Speed:

– Single-Stage: Single-stage pumps generally have a higher pumping speed or evacuation rate compared to two-stage pumps.

– This means that single-stage pumps can evacuate a larger volume of gas per unit of time, making them suitable for applications that require faster evacuation.

– Two-Stage: Two-stage pumps have a lower pumping speed compared to single-stage pumps.

– While they may have a slower evacuation rate, they compensate for it by achieving deeper vacuum levels.

5. Applications:

– Single-Stage: Single-stage piston vacuum pumps are commonly used in applications that require moderate vacuum levels and higher pumping speeds.

– They are suitable for laboratory use, vacuum packaging, HVAC systems, and various industrial processes.

– Two-Stage: Two-stage piston vacuum pumps are well-suited for applications that require deeper vacuum levels.

– They are commonly used in scientific research, semiconductor manufacturing, analytical instruments, and other processes that demand high vacuum conditions.

6. Size and Complexity:

– Single-Stage: Single-stage pumps are generally more compact and simpler in design compared to two-stage pumps.

– They have fewer components, making them easier to install, operate, and maintain.

– Two-Stage: Two-stage pumps are relatively larger and more complex in design due to the additional components required for the two-stage compression process.

– They may require more maintenance and expertise for operation and servicing.

In summary, the main differences between single-stage and two-stage piston vacuum pumps lie in the number of stages, compression ratio, achievable vacuum levels, pumping speed, applications, and size/complexity. Selecting the appropriate pump depends on the desired vacuum level, pumping speed requirements, and specific application needs.

China Hot selling Vacuum Pump Rotary Roots Liquid-Ring Water Piston Dry Portable Screw Scroll Reciprocating Diaphragm Centrifugal Positive Displacement DC AC Air Vacuum Pump   vacuum pump	China Hot selling Vacuum Pump Rotary Roots Liquid-Ring Water Piston Dry Portable Screw Scroll Reciprocating Diaphragm Centrifugal Positive Displacement DC AC Air Vacuum Pump   vacuum pump
editor by Dream 2024-04-17