Bradford White 415-33630-04 Relief Valve 320788-704 many techs recommend a thin

many techs recommend a thin bead of high-temp silicone or a foam seal depending on the specific transition point within the furnace

this assembly delivers an equal percentage flow characteristic

preventing hazardous leakage in high-capacity 4-inch flanged valve bodies

this direct drive blower motor utilizes a constant torque electronically commutated motor design to significantly reduce energy consumption compared to standard PSC motors

Direct OEM Integration: Designed as a drop-in Modine replacement part for HDB75

Bradford White 415-33630-04 Relief Valve 320788-704 many techs recommend a thinThe Bradford White 415 33630 04 T&P Relief Valve is a critical safety component designed for high capacity commercial and residential water heating systems. As a direct OEM replacement part for the now obsolete 230 33630 04, this valve ensures precise pressure and temperature regulation. It features a 1" Female NPT connection and is factory calibrated to a 150 PSI relief setting, with a standard temperature relief point of 210F. The heavy duty