Watts 0382456 Relief Valve Els PW 17895 Durable Construction: Forged brass body

Durable Construction: Forged brass body and a nickel-plated stem ensure longevity in demanding hydronic heating and cooling environments

The Erie VM series is specifically rated for modulating service

Common indicators include a loud grinding or rattling noise during the pre-purge cycle

60" W/C high fire switch failure

this model is battery-powered and does not require a common wire to operate the digital display or system switching

Watts 0382456 Relief Valve Els PW 17895 Durable Construction: Forged brass bodyThe Watts 0382456, also identified as the Series 740 high capacity water relief valve, is a dedicated safety component for large hot water heating boilers and heat storage tanks. This specific 740 3 4 75 model features a 3 4 inch NPT threaded inlet and outlet, factory set to discharge at 75 PSI. With a discharge capacity of 1,886,000 BTU hr, this valve provides critical overpressure protection by utilizing a large orifice and a high lift disc design.