Watts 0383544 Relief Valve 326058-758 Durable Construction: Heavy-duty float and

Durable Construction: Heavy-duty float and bellows assembly engineered to withstand the rigors of low pressure steam environments

it effectively regulates fan or blower cycling while providing a critical high-limit safety cutoff

Secure Interfacing: Dual 1/4" barb configuration ensures a leak-free seal and reliable signal to the integrated furnace control

While the 42-1 is the primary casting for the 42S series

Watts 0383544 Relief Valve 326058-758 Durable Construction: Heavy-duty float andWhen you are in the field servicing a commercial hydronic system, you need a high capacity boiler pressure relief valve that provides consistent, fail safe performance. The Watts 0383544 is an industrial grade 1 1 2 inch relief valve designed specifically for hot water space heating applications. Engineered with a rugged iron body and a 36 psi fixed set point, this valve delivers a massive discharge capacity of 2,310,000 BTU hr, ensuring it can handle