Low temperature gate valve is suitable for methane, liquid natural gas, already ene, carbon dioxide, liquid ammonia, liquid oxygen, liquid nitrogen, liquid hydrogen and other low temperature medium.

1. In order to prevent abnormal pressure boost in the middle chamber, a pressure relief hole is arranged at the inlet side of the gate plate;

2, according to the working temperature of the valve to determine the top length of the valve cover, to ensure the reliable sealing of the valve stem packing;

3, according to the working temperature reasonable selection of packing, gasket and other parts of the material;

4, strict control of the chemical composition of the material and low temperature impact toughness and other mechanical properties;

5, adopt a variety of piping flange standards and sealing surface type, suitable for a variety of engineering needs.