Which type of valve is suitable for low-point venting of natural gas?
Thread Content
Our facility uses DN20 gate valves for the low-point venting of natural gas, and in the recent VOCs tests almost all of them had internal leaks. I was wondering what type of valves with good sealing performance your facilities use for low-point venting of natural gas. Also, our gas cylinders leak when the pressure is low. We’ve already replaced two new gate valves this year, but they still leak. I would appreciate advice from those in the same field on what kind of valve would be suitable.
Globe valves are still more commonly used. It is recommended to choose a better valve manufacturer.