Pressure Relief Valves
What is a Relief Valve?
Pressure Relief Valves are used to protect downstream piping from potentially damaging pressure build ups. The most common form (direct acting) relies on the compression of a spring acting against a diaphragm or piston to keep the valve closed.
In the event of an upstream overpressure situation above the setpoint of the spring, the pressure will cause the spring to compress further as the valve opens to relieve the pressure through the outlet port or direct to atmosphere depending on the configuration. The valve will close again as soon as the inlet pressure falls below the setpoint pressure.
Pressure Relief Valves are used to protect downstream piping from potentially damaging pressure build ups. The most common form (direct acting) relies on the compression of a spring acting against a diaphragm or piston to keep the valve closed.
In the event of an upstream overpressure situation above the setpoint of the spring, the pressure will cause the spring to compress further as the valve opens to relieve the pressure through the outlet port or direct to atmosphere depending on the configuration. The valve will close again as soon as the inlet pressure falls below the setpoint pressure.
Pressure Relief Valves
P03 Pressure Relief Valve
P16 Pressure Relief Valve
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