Cryogenic valve is the valve suitable for medium temperature of - 40 ℃ ~ - 196 ℃. It also can be called low temperature valve.
Low temperature valves include low temperature ball valve, low temperature gate valve, low temperature stop valve, low temperature safety valve, low temperature check valve, low temperature butterfly valve, low temperature needle valve, low temperature throttle valve, low temperature pressure reducing valve, etc., which are mainly used for ethylene, liquefied natural gas plant, natural gas LPG LNG storage tank, receiving base and satellite station, air separation equipment, petrochemical tail gas separation equipment, liquid oxygen, liquid nitrogen, liquid argon, carbon dioxide low temperature storage tank and tank car, pressure swing adsorption oxygen plant, etc. The output liquid low-temperature media, such as ethylene, liquid oxygen, liquid hydrogen, liquefied natural gas, liquefied petroleum products, etc., are not only flammable and explosive, but also need to be gasified when the temperature rises. When gasified, the volume expands hundreds of times.
