Saftey Valves

A safety valve is a valve that acts as a fail-safe. An example of safety valve is a pressure relief valve (PRV), which automatically releases a substance from a boiler, pressure vessel, or other system, when the pressure or temperature exceeds preset limits. Pilot-operated relief valves are a specialized type of pressure safety valve.

Spring Loaded Safety Valves or Safety Relief Valves are the most commonly used relieving safety device.

Important Terms and Definitions :-

Opening Pressure : Is the value of increase inlet static pressure at which there is a measurable lift of the disc or at which discharge of the fluid becomes continuous.

Relieving Conditions : The term of relieving condition is used to indicate the inlet pressure and temperature on a Pressure relief device during an overpressure condition.

Safety Valve Descriptions

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