Watts 0275054 Relief Valve Els PW 17895 While the standard plastic cover

While the standard plastic cover is ideal for occupied spaces

Does this unit require an Overpressure Protection Device (OPD)

or fan status verification

and W45 series controls

jacketed wire

Watts 0275054 Relief Valve Els PW 17895 While the standard plastic coverThe Watts 0275054 is a heavy duty 174A 1 50 boiler pressure relief valve engineered for critical overpressure protection in large scale hydronic heating and domestic supply boiler systems. Featuring a rugged bronze body and a 1 inch NPT female threaded inlet and outlet, this ASME Section IV rated safety valve is set to trip at 50 PSI. With a massive discharge capacity of 1,470,000 BTU hr, it is built to handle the rigorous demands of commercial