Most Vacuum environment that using the oil diffusion pump is mixed with residual gas, over 80% of which are the vapor of water and oil . Common pumps take more time in bleeding the residual gas, influencing the output and quality of the machine in this case, water vapor cryopump is the best choice.

The operating principle of water vapor cryopump. Put a refrigerate pipe, which can reach the temperature of lower than -20C, at the vacuum cavity or the pumping hole of oil diffusion pump. By its freezing effect ion, the pipe absorbs the residual gas rapidly and shortens the time of vacuum pumping by 75%. The vacuum degree is improved by half order of the magnitude, reaching 10-8 Torr and 10-5Pa. Therefore, the water vapor cryopump is widely used in the fields of vacuum metallic membrane plating, astronavigation, medical attendance and etc.

The -135C Water Vapor Cryopump, applying two-shipper system and overlapping and auto-overlapping cooling down method is equipped by famous compressor and freezing accessory. It has the advantages of rapid refrigerate speed, high effect ion, low cooling temperature, convenient maintenance and so on.
1. The replacement of liquid nitrogen, reducing the cost.
2. Twin- stage refrigeration, can reach the temperature of -120C(-150C the lowest) in 5 minutes.
3. Adsorb the water and oil vapor rapidly, and can shortening the time of air-out by 60%~90%
4. Prevent the diffuse of oil from polluting the vacuum cavity
5. Hot- water defrost and then lowing the temperature swiftly
6. Convenient in installment and operation, no exhaust gas

“TIANHAN” TH Series’ Performance index
Model No. TH-135-4J TH-135-7J TH-135-10P TH-135-15P
Power of two compressors 2HP,3HP 3HP,5HP 4Hp,6Hp 5HP,8HP
Temperature(C) -120C~-150C
Speed of gas-bied(1m/s) 45000 80000 100000 130000
Refrigerating output (W) 1000 2000 3500 5000
Superficial area of condenser tube 0.4m2 0.7m2 1m2 1.3m2
Time of precooking (min) ≤60 ≤60 ≤80 ≤80
Time of temperature recovery(min) ≤5 ≤5
Time of recooling ≤5 ≤5
Inner diameter of pump(mm) ≤350 ≤700 ≤90
Cooling-down method Wind cooling
(hydrocooling) Hydro cooling(ts25C) Hydro cooling(ts25C) Hydro cooling(ts25C)

Equipment Accessory:
Input and output interface: The interface of cryogenic pumps and condensate pump
can be customized according to the size of equipment
Cryogenic condensate pump: According to the structure and size of the equipment, we can customize different shapes of the cryogenic condensate pumps and chillers.