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6.
Relief Valves
Pressure relief valves are sized to protect the system. Never change the pressure setting or tamper with the valve.
Only the relief valve manufacturer or an approved representative is qualified to make such a change.
! DANGER
Relief valves are to protect system integrity in accordance with ANSI/ASME B19
safety standards. Failure to provide properly sized relief valves will result in death
or serious injury.
Relief valves are to be placed ahead of any potential blockage point that includes, but is not limited to, such
components as shut-off valves, heat exchangers, and discharge silencers. Ideally, the relief valve should be threaded
directly into the pressure point it is sensing, not connected with tubing or pipe, and pointed away from any personnel.
Always direct discharge from relief valves to a safe area away from personnel.
Relief Valve