Liquefied gas, valves, gaskets, ball valves
Thread Content
Regarding the projects for the advanced processing of liquefied gas, I was wondering if those of you who are experts know what type of valves are currently used in the C4 plants – whether they are gate valves or globe valves – and what material is used for the gaskets. I’d like to ask again, what’s wrong with using ball valves in C4 pipelines?
What we mainly use are ball valves, stop valves, and plug valves; as long as the pressure, temperature, flow rate, and sealing performance meet the requirements, that’s sufficient. I’m not sure what concerns you have? At least in our company’s many years of operation, we’ve never encountered any problems related to the type of valves used.
The C4 project makes use of many ball valves, including pneumatic control ball valves; there are also some valves that can handle high temperatures. It depends on whether the technology involved comes from Dalian University of Technology or elsewhere.
Thank you all for your enthusiasm and concern! The reason is that the globe valves and gate valves fail to close properly, and these types of valves are used in the process package. From our experience with ball valves, their shut-off performance is good, and they generally don’t have the problem of failing to close fully. I’m not sure if that’s the case.
Reply to 4# tsinghua2010: Relatively speaking, ball valves are more widespread these days.