What is the discharge flow rate of an RVHD-XXNL series heavy duty relief valve?

The following flow guide may be used to help select the proper size relief valve for your application. If you are near the maximum GPM (gallons per minute), it is recommended to go up a minimum of one size to ensure there is adequate flow to compensate for friction loss in the piping.

Additional Resources:

For more information on adjusting relief valves and the use of relief valves in hot water applications, refer to the articles linked below.

https://support.boshart.com/are-relief-valves-suitable-for-hot-water-applications

https://support.boshart.com/how-do-i-adjust-a-relief-valve