Conbraco Industries 10-417-15 Relief Valve replacing a lower-rated spring (such

replacing a lower-rated spring (such as a blue or green spring) with this 143-62-021-22 black/white spring allows the 143-80 regulator to reach an outlet range of 0

Constructed from high-grade durable materials to survive high-temperature flue environments

as long as the capacitance (MFD) range matches the motor manufacturer’s requirements

it offers a direct fit for contractors servicing older Nortek manufactured equipment

It is often clipped to the suction line or liquid line

Conbraco Industries 10-417-15 Relief Valve replacing a lower-rated spring (suchThe Conbraco Industries 10 417 15 is a high capacity hot water relief valve engineered specifically for hydronic heating systems and boiler protection. Featuring a 3 4" MNPT inlet and a 3 4" FNPT outlet, this ASME Section IV certified safety valve is factory set at 75 PSI to ensure reliable overpressure protection. With a substantial discharge capacity of 972,000 BTU hr, the 10 417 15 is built for durability with a corrosion resistant bronze body