Chart Reflects 3/4″ Valve
NOTE: These valves are not T&P valves that are required with water heaters. There is the same need for PRV on cold water pressure tanks.
NOTE: Merrill Manufacturing™ pressure relief valves may not reseat themselves after pressure relief. Manual disassembly and reseating of valve may be required. Repeated opening of a pressure relief valve is beyond intended use and voids warranty.
WARNING: All PRV, SSPRV, PRVNL, PRVHD and PRVHDNL valves must be set a minimum of 15 psi above the typical high of the water system pressure, so valve chatter or rapid open and close will not occur. Valve chatter can cause failure of the valve and voids warranty.
NOTE: All PRV valves are field adjustable – but removing cap and turning internal disk down to increase pressure. Field adjustment of valve voids warranty.
NOTE: Valve warranty void after change in adjustment due to possible error.
