Do not discharge relief valves prior to installation or when pressure testing the system.  Use the proper size and length of discharge tube or pipe. Correct sizing is required to prevent back ...

the valve will open, relieving the pressure level. The latest version of ASHRAE 15 (2016) includes numerous updates regarding PRVs, including revisions to relief vent pipe discharge locations, design ...

To handle these challenging situations, ASME provides alternate means of testing relief valves, as documented in ASME Performance Test Code (PTC) 25 Pressure Relief Devices.

Pressure-reducing valves can easily be confused with pressure-relief valves ... dripping faucets, seeping pipes, and some fizzy noise. While these wastages may look like nothing to worry about ...

When a temperature and pressure (T&P) relief valve at a water heater leaks, it's usually a simple fix; just replace the valve. These valves cost less than $15, and replacing the valve is a very ...