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Cold Trap

The ultra-low temperature refrigerator adopts automatic cascade refrigeration, suitable for gas condensation and capture, low temperature liquid bath, oil and gas recovery, material testing, medicine freeze-drying and other uses. It can be used as cryogenic tank, pre-freezing tank and cryogenic container. The working principle of the ultra-low temperature refrigerator: a refrigeration coil which can reach below -135℃ is placed in the vacuum chamber or the pump port of the oil diffusion pump, and the residual gas of vacuum gas is quickly captured by the condensation effect of low temperature on the surface. Thus, the time of vacuumization is greatly shortened and a clean vacuum environment is obtained.

Cold Trap