Minimum opening pressure of the check valve
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I would appreciate it if you could advise me on how to determine the minimum opening pressure of a check valve from its nameplate. Thank you. Also, in the 1.6C grade under stress, is the C referring to carbon steel?
It is recommended that attention should be paid to the pressure difference. To find out the minimum pressure required to open it, the best way is to disassemble the valve and measure it practically. Some valves are controlled by their own weight or the force of springs; if precise data is required, it is better to conduct actual measurements for reference.
I just want to talk about what the C symbol represents in terms of stress data – didn’t you ask about that not long ago? Forgot it..... https://bbs.hcbbs.com/thread-3018141-1-1.html
Last time it was the breathing valve; C is the operating pressure rating. That’s true too. Could you be more specific? Thank you
These parameters cannot be indicated on the nameplate; the operating pressure and pressure drop can only be shown in the calculation sheet.
When the inlet pressure is greater than the outlet pressure, the valve begins to open
The opening pressure cannot be determined from the nameplate of the check valve; it has to be checked in the original design documents of the check valve
This depends on the pressure difference before and after; the opening torque is minimum under full pressure difference
The operating pressure cannot be determined from the nameplate; it is necessary for the manufacturer to provide this information or to be specified during the design phase. C represents carbon steel