What is the maximum operating pressure that would require a PRV?

The maximum operating pressure that typically necessitates the installation of a Pressure Relief Valve (PRV) is generally considered to be 100 PSI. When the pressure within a system exceeds this threshold, the risk of equipment failure or system rupture increases significantly. PRVs are essential safety devices designed to open and relieve pressure when it reaches a predetermined level, thus preventing potential hazards associated with overpressure situations.

In systems where the operating pressure is maintained at or below 100 PSI, the likelihood of failure due to pressure fluctuations is minimal, making a PRV less critical. However, once the pressure level approaches 100 PSI, the implementation of a PRV becomes crucial to ensure safety. Therefore, a maximum operating pressure of 100 PSI aligns with established safety practices and standards in fire protection and equipment safety regulations, solidifying its designation as the pressure threshold for PRV requirements.