What type of valves should be used at both ends of the DN700 gas pipeline control valve?
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Gentlemen, what type of valves should be used at both ends of the regulating valve as well as for bypass purposes on DN700 coal gas pipelines?
Gate valves are used at both ends of the control valve, while globe valves are used for the bypass
The pressure is relatively high, at 0.4 MPa and 60°C – can a gate valve meet these requirements?
A pressure of 0.4Mpa is no problem, and the temperature is not high either
The pressure is not high; a gate valve will work, as well as a bypass stop valve
Butterfly valves are suitable for shutting off and regulating large-diameter pipes. For gas pipelines, a special gas globe valve plus butterfly valve is used at the front end of the control valve, while a butterfly valve is used at the rear end ； A butterfly valve is used for bypassing, with the front end of the bypass connected between the check valve and the butterfly valve.
For a valve of this size, a gate valve is probably the only option!