1. A pressure relief valve (PRV) protects equipment by automatically opening to vent process media when the pressure in the inlet nozzle overcomes the downward force of the spring. Courtesy: Emerson ...

If a pressure relief valve for a boiler is accidentally installed on a water heater, it will leak like crazy from the start. These valves may look identical, but they're set to go off at 30 psi ...

Testing a relief valve at the wrong time could damage the spring—or worse, take your boiler offline. In this installment of Weekly Boiler Tips we cover the safest testing frequencies and what you need ...