The low-temperature gate valve is suitable for low-temperature media such as methane, liquid natural gas, amine, carbon dioxide, liquid ammonia, liquid oxygen, liquid nitrogen, liquid hydrogen and so on. 

 [Product Features] 

1. In order to prevent abnormal pressure increase in the middle cavity, a pressure relief hole is set up on the inlet side of the gate plate; 

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

3. Reasonably select the materials of fillers, gaskets and other parts according to the working temperature; 

4. Strictly control the chemical composition of the material and mechanical property indicators such as low-temperature impact toughness; 

5. Adopt a variety of piping flange standards and sealing surface types, which are suitable for various engineering needs.

Each process, each facility, and each environmental constraint has its own special requirements. Therefore, Dongyan offers a comprehensive range of products covering different performance levels, pressures, different functions and different materials.