Electric cryogenic butterfly valves are primarily designed for low-temperature applications involving media such as liquid nitrogen (deep cryogenic) with temperatures ranging from -40°C to -196°C. To ensure safe and reliable operation at cryogenic temperatures, valve components undergo deep cryogenic treatment prior to machining. The valve bonnet features a long-neck design to protect the stuffing box, positioning it farther from the cryogenic environment to maintain effective packing sealing. The media typically used with electric cryogenic butterfly valves include cryogenic fluids such as liquid helium, liquid hydrogen, liquefied natural gas, liquid nitrogen, and liquid oxygen.