Low temperature cryogenic treatment for flange butterfly valves or special materials Low temperature cryogenic treatment flange butterfly valve refers to a butterfly valve that can be used under low temperature conditions. The working temperature is -40C. Mainly used for equipment such as ethylene and liquefied natural gas.
The liquid low-temperature medium used by , such as ethylene, liquid oxygen, liquid hydrogen, etc., is flammable and explosive, vaporizes at high temperatures, and expands hundreds of times in volume.