Set pressure of the safety valve

2017-04-12View Original

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Safety valves have a set pressure and a back pressure. What do constant pressure and back pressure mean?

Reply #22017-04-12

Back pressure is the pressure behind the valve; when venting, it is atmospheric pressure

Reply #32017-04-12

Fixed pressure refers to the maximum allowable pressure difference. Safety valves are generally connected to atmospheric pressure; when pressed, the pressure is that of the atmosphere.

Reply #42017-04-12

Constant pressure refers to the starting pressure, while back pressure refers to the pressure behind the valve.

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Set pressure of the safety valve

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