FAQ
What is the difference between valve j941H-40 and j41H-40?
Valve design manual showsJ- stop valve9- electric4- connection means flange connection1- t...
How does the valve close?
This is a relatively vague ah, like the stem ah, usable spanner clamping, clockwise rotati...
What are the definitions of internal, external and leakage valves?
Upstairs to say there is a problem. The leakage within the valve that is the reason of ero...
Automatic exhaust valve installed in the pipe before and after the installation of other valves need to press it?
Do not need ah, at most installed a gate valve, globe valve, and so on, installed on the e...
How to suppress the valve?
Upstairs is right... But look at the situation, there are some valve flange is 16 pressure...
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