Valve selection
Thread Content
What are the requirements for selecting valves in low-temperature environments? Could someone please give some guidance?
Are there any specific parameters? Such as requirements for temperature, pressure, medium, pipe diameter, flow rate, etc.?
We need to see how low the temperature can go. Give us a parameter, and we’ll give you some suggestions
For valves used in low-temperature applications, many in our factory are Fisher models; it’s possible to tell them apart by their actuation mechanisms
For low-temperature valves, it is generally necessary to use alloyed killed steel
Valves for low-temperature applications can use upper valve covers with a long neck; they are suitable for deep-freezing conditions, with operating temperatures ranging from -60 to -250°C. The upper valve cover features an additional straight section of sufficient length to prevent the packing from freezing within the allowable low-temperature range. The length of this neck depends on the temperature level and the diameter of the valve.