Product Description


Product Description

Rotary vane vacuum pumps are divided into single-stage  (XD series) and double-stage (FX Series).

The XD series is a kind of oil seal,single stage,direct connection,air cooled rotary vane
vacuum pump. which consists of a high-pressure stage and a low-pressure stage.The pump is improved products,using German technology and improvement of the vacuum pump.its efficient,reliable,low noise,
and easy to maintain design,not only in the vacuum refrigeration,drying.CHINAMFG drying,vacuum degassing,
vacuum packaging.vacuum adsorption,vacuum forming. food packaging,printing.sputtering.vacuum casting.photovoltaic,technology in the field of aviation,chemical.electronic,refrigerator,air conditioning
ipeline characteristics and laboratory work and supporting the use of.
But it can’t smoke in addition tocontaining high oxygen content.explosive,the metal is corrosive,and on the
pump oil will play chemical reaction and containing gas dust particles.

The FX Series is a kind of oil seal too,double stage,direct connection,air cooled rotary vane vacuum pump.
which consists of a high-pressure stage and a low-pressure stage. The pump is improved products,using
German technology and improvement of the vacuum pump.its efficient,reliable,low noise,and easy to maintain design,not only in the vacuum refrigeration,drying.CHINAMFG drying,vacuum degassing,vacuum packaging.vacuum adsorption,vacuum packaging, printing.sputtering.vacuum casting.photovoltaic,technology in
the field of aviation,chemical.electronic,refrigerator,air conditioning pipeline characteristics and laboratory work
and supporting the use of.But it can’t smoke in addition tocontaining high oxygen content.explosive,the metal is
corrosive,and on the pump oil will play chemical reaction and containing gas dust particles.

Our Advantages

1. It can be used alone,can also be used as other high vacuum pump or super high vacuum pump before the pump:
2. The preparation of special design of gas valve,prevent water pump oil,pump ail extended the use of time:
3. High pumping efficiency,high vacuum,long service life
4. With automatic anti returning oil check valve and never return oil;when the pump stops,anti oil return valve will automatically close the air inlet,by pumping the container holding 10-100Pa role:
5. Specially equipped with vacuum drying box.CHINAMFG drying machine.printing machine,coating machine,glove box.refrigerator assembly line:
6. Can be equipped with small caliber conversion connector,KF interface,flange interface:
7. When the suction with steam,particles and corrosive gases,in the inlet of the pump shall install auxiliary equipment.such as condensers,filter and so on.

Typical Use

——Oil and gas recovery.    ——Biological medicine ——Food Processing —— Single crystal furnace
——Vacuum forming ——Vacuum flame refining ——Electronic photovoltaic. ——Semiconductor synthesis

Product Parameters

Basic parameters(For reference single-stage)

XD-20 XD-25 XD-40 XD-63 XD-80 XD-100 XD-160 XD-202 XD-250 XD-302 XD-630
Exhaust rate (m³/h) 20 25 40 63 80 100 160 200 250 300 600
Limiting pressure
0.1-0.5 0.1-0.5 0.1-0.5 0.1-0.5 0.1-0.5 0.1-0.5 0.1 0.1 0.1 0.1 0.1
Motor power (kw) 0.75 0.75 1.5 2.2 2.2 3 4 4.5 5.5 7.5 22
Working voltage(v) 220/380 380 380 380 380 380 380 380 380 380 380
Motor speed (r/min) 2880 2880 1440 1440 1440 1440 1440 1440 1440 1440 1440
Noise(dB) ≤62 ≤62 ≤65 ≤65 ≤65 ≤67 ≤70 ≤72 ≤73 ≤75 ≤80
Steam permissible pressure (mbar) 40 40 40 40 40 40 40 40 40 40 40
Suction rate of Steam
0.3 0.3 0.6 1 1 1.6 2.5 4 4.5 5 8
Operating Humidity(ºC) 82 82 80 80 80 84 95 95 81 83 88
Oil mass(L) 0.5 0.5 1 2 2 2 5 5 7 7 20
Weight(kg) 18 18 45 55 60 70 150 150 195 211 500
Thread for air inlet port () Rp3/4″ Rp3/4″ Rp1/4″ Rp1/4″ Rp1/4″ Rp1/4″ Rp2″ Rp2″ Rp2″ Rp2″ Rp3″
Overall dimensions:
650x300x280 650x300x280 650x300x280 650x430x295 650x430x295 720x430x295 850x505x440 850x505x440 980x560x440 1571x560x440 1850x850x750

Basic parameters(For reference double-stage)

FX8 FX16 FX32 FX60
Geometric extraction velocity  L/s (m³/h) 2.2(8) 4.4(16) 9.3(33.4) 17.5(63.0)
Nominal extraction speed  L/s (m³/h) 2 (7.2) 4 (14.4) 8.0(28.8) 15.0(54.0)
Limiting partial pressure(Pa) Air ballast valve close ≤ 4×10^-2 ≤ 2×10^-2
Air ballast valve open ≤ 8×10^-2
Ultimate total pressure(Pa) Air ballast valve close ≤5×10^-1
Air ballast valve open ≤ 6×10^-1
Noise  Lw:dB(A) Air ballast valve close 62 65 69 70
Air ballast valve open 65 67 71 72
Allowable pressure of water vapor(Pa) 2000 2500 3000 4000
Steam extraction rate  L/h 360 500 600 1200
Air outlet DN25ISOKF
Oil mass(L) 1.1 1.5 2.8/3.5 4.0/4.8
Recommended oil grade HFV-A200 HFV-A200s
Motor speed(r/min) 1400 1420 1400 1420
Working voltage(v) 380 380 380 380
Motor power(kw) 0.37 0.55 1.1 2.2
Weight(three-phase voltage/singel phase voltage) kg 27/29 28.2/34 58.5 75
Overall dimensions:L×W×H(mm) 500×700×300 540×180×300 630×240×410 690×240×410
Overall dimensions with oil shield:L×W×H(mm) 500×770×415 540×180×415 630×240×530 690×240×530


Characteristic Curve


Detailed Photos

General Manager Speech

Deeply cultivate the vacuum technology, and research,develop and manufacture the vacuum equipment to provide the best solution in the vacuum field and make the vacuum application easier.

Company Profile

ZheJiang Kaien Vacuum Technology Co., Ltd. is a high-tech enterprise integrating R & D, production and operation of vacuum equipment. The company has strong technical force, excellent equipment and considerate after-sales service. The product manufacturing process is managed in strict accordance with IS09001 quality system. It mainly produces and sells screw vacuum pump, roots pump, claw vacuum pump, runoff vacuum pump, scroll pump, water ring vacuum pump, vacuum unit and other vacuum systems.

 New plant plHangZhou

The company’s products have been for a number of food, medicine, refrigeration, drying plants and a number of transformer related equipment manufacturers for vacuum equipment. The products are widely used in vacuum drying and dehydration, kerosene vapor phase drying, vacuum impregnation, vacuum metallurgy, vacuum coating, vacuum evaporation, vacuum concentration, oil and gas recovery, etc.

High precision machining equipment

The company cooperates with many scientific research institutions and universities, such as ZheJiang University, China University of petroleum, ZheJiang Institute of mechanical design, etc.with colleges and universities to research and develop core technologies, and owns dozens of independent intellectual property patents.Our technology is leading, the product quality is stable, the product has a good reputation in China’s domestic market, is sold all over the country, and is exported to Europe, America, Africa, the Middle East and Southeast Asia,We adhering to the basic tenet of quality, reputation and service, the company takes leading-edge technology of vacuum pump as its own responsibility, and wholeheartedly serves customers of vacuum equipment application in various industries with rigorous working attitude and professional working style.

 Product quality wins consumer cooperationIn shipmentVacuum pump is used in the field of chemical and pharmaceutical factoryExhibition site


Welcome to send your needs, we will provide you with the best service,

provide the greatest help!!!


Warranty: One Year
Oil or Not: Oil Free
Structure: Screw
Exhauster Method: Entrapment Vacuum Pump
Vacuum Degree: High Vacuum
Work Function: Mainsuction Pump


rotary vane pump

Are There Oil-Free Rotary Vane Pump Options Available?

Yes, there are oil-free rotary vane pump options available in the market. These pumps are designed to operate without the need for lubricating oil, offering certain advantages and applications where oil contamination is a concern. Here’s a detailed explanation:

– Dry Vane Technology: Oil-free rotary vane pumps, also known as dry vane pumps, utilize specialized dry vane technology. Instead of relying on lubricating oil to create a seal and reduce friction, these pumps use self-lubricating materials and innovative design features to achieve efficient operation without oil.

– Reduced Contamination Risk: One of the primary advantages of oil-free rotary vane pumps is that they eliminate the risk of oil contamination. In certain applications, such as in the food and beverage industry, pharmaceutical production, or cleanroom environments, maintaining a completely oil-free and contaminant-free operation is critical. Oil-free rotary vane pumps address these requirements and ensure the purity and integrity of the process or product being handled.

– Environmental Friendliness: Oil-free rotary vane pumps are considered more environmentally friendly compared to their oil-lubricated counterparts. The elimination of oil lubrication means there is no risk of oil leaks or spills, reducing the potential impact on the environment. These pumps also eliminate the need for oil changes and disposal, resulting in lower maintenance and disposal costs.

– Lower Operating Costs: Oil-free rotary vane pumps can offer cost advantages in terms of operating expenses. Since they do not require oil lubrication, there is no need to purchase, monitor, or replace oil. This can result in savings over the pump’s lifetime. Additionally, oil-free pumps often have lower maintenance requirements, as there is no need to monitor oil levels, change oil, or replace oil filters.

– Application Flexibility: Oil-free rotary vane pumps are suitable for a range of applications where oil contamination must be avoided. They find application in industries such as food and beverage, pharmaceuticals, medical devices, laboratory research, electronics manufacturing, and other sensitive environments. These pumps can handle both gas and some liquid applications, providing versatility in various processes.

– Considerations: While oil-free rotary vane pumps offer several advantages, it’s important to consider certain factors when choosing these pumps. They may have slightly different operating characteristics compared to oil-lubricated pumps, such as lower ultimate vacuum levels or reduced performance in high-pressure applications. It’s crucial to assess the specific requirements of the application and consult the manufacturer’s specifications to ensure the chosen oil-free rotary vane pump meets the desired performance criteria.

– Alternative Technologies: In cases where oil-free rotary vane pumps may not be suitable, alternative technologies such as dry screw pumps or dry claw pumps can be considered. These pumps also offer oil-free operation and have their own unique advantages and applications.

In summary, oil-free rotary vane pumps are available and offer benefits such as eliminating oil contamination, environmental friendliness, reduced operating costs, and application flexibility. They are particularly valuable in industries where maintaining an oil-free environment is critical. Understanding the specific requirements of the application and consulting with pump manufacturers can help in selecting the appropriate type of pump for the desired operation.

rotary vane pump

Can Rotary Vane Pumps Create a Deep Vacuum?

Rotary vane pumps are capable of creating a vacuum, but the depth of the vacuum they can achieve is limited compared to other types of vacuum pumps. Here’s a detailed explanation:

Rotary vane pumps utilize a positive displacement mechanism to create a vacuum. As the rotor rotates, the vanes slide in and out of the rotor slots, creating expanding and contracting chambers. This action allows the pump to draw in gas or fluid from the inlet port and then expel it through the outlet port.

While rotary vane pumps can achieve relatively high vacuum levels, they are not typically designed to create extremely deep vacuums. The ultimate vacuum level that a rotary vane pump can achieve depends on several factors, including the specific pump design, the quality of the sealing surfaces, the lubrication system, and the operating conditions.

In general, rotary vane pumps can achieve vacuum levels in the range of a few millibars (thousandths of atmospheric pressure) or slightly lower. However, they may struggle to reach the ultra-high vacuum levels required in certain applications, such as semiconductor manufacturing or scientific research.

For applications that demand deeper vacuums, other types of pumps, such as turbomolecular pumps or cryogenic pumps, are typically employed. These pumps are specifically designed to operate in the high-vacuum or ultra-high-vacuum range and can achieve significantly lower pressures than rotary vane pumps.

It’s important to consider the specific requirements of your application when selecting a vacuum pump. If you need to create a deep vacuum, you may need to explore alternative pump technologies that are better suited to achieve the desired vacuum level.

In summary, while rotary vane pumps can create a vacuum, their capability to achieve deep vacuums is limited compared to specialized high-vacuum pumps. The ultimate vacuum level achievable with a rotary vane pump depends on various factors, and if ultra-high vacuum levels are required, alternative pump technologies should be considered.

China Standard Rotary Vane Vacuum Pump for Vacuum Flame Refining to Be Used as The Front Pump to Get Higher Vacuum   vacuum pump acChina Standard Rotary Vane Vacuum Pump for Vacuum Flame Refining to Be Used as The Front Pump to Get Higher Vacuum   vacuum pump ac
editor by CX 2023-10-28