Pneumatic diaphragm cryogenic control valve

 Pneumatic thin film low temperature angle control valve is a kind of control valve used in low temperature and deep cold situation. It has the advantages of compact structure, light weight and good stability. The valve body is made of aluminum alloy and has good low temperature resistance. The bellows seal ensures that the control valve will not leak out at low temperature. Therefore, it is widely used in metallurgy, air separation, oxygen production, petroleum, chemical industry and other low-temperature and cryogenic occasions. It is especially suitable for precisely controlling the process parameters of low temperature gas and fluid (such as liquid oxygen, liquid argon, etc.) to keep at the given value. This series of products have connection plate installation type and floating sleeve installation type. The nominal pressure rating is pn0.6mpa, the valve body diameter range is DN20 ~ 100, and the fluid temperature range is - 60 ℃ ~ - 250 ℃. The leakage grade is IV and VI, and the flow characteristic is linear or equal percentage. A variety of varieties and specifications are available.