Watts 0382822 Relief Valve R-22 this is a hydraulic snap-action

this is a hydraulic snap-action valve

this unit should be paired in series with a Grade 1 activated carbon filter

offering the same SPDT contact configuration with expanded programming capabilities

Its rugged construction prevents thermal bypass leakage

Split Taper Security: Utilizes H-series bushings for a dependable concentric grip that prevents shaft marring and slippage

Watts 0382822 Relief Valve R-22 this is a hydraulic snap-actionThe Watts 0382822 (Series 174A) is a high capacity boiler pressure relief valve designed specifically for large scale commercial and institutional hot water heating systems. Featuring a 1 inch NPT threaded inlet and outlet, this valve is factory set to trip at 55 PSI to protect equipment from over pressurization. Its robust construction includes a bronze body and a silicone rubber disc that provides consistent reseating even after multiple lift