Air pressure reducing valve
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The air pressure relief valve in the workshop keeps failing to function (it malfunctions due to high pressure); I’m looking for a durable valve. Also, is it possible to perform pressure reduction by controlling the electric valve using an electrical contact pressure gauge?
The method you mentioned is theoretically fine, but it’s just too complicated
Use that old-style large pressure reducing valve from the QFH series; for pressure reduction, a gauge with dual upper limits can be employed, along with an interlock circuit to control the solenoid valve and thus regulate the pressure.
It is recommended to use a self-acting gas control valve; a safety valve must be installed after pressure regulation.