Watts 740 075 FS 1 1/4 - Part of the 740 Series ZC100F-6NH bronze body with Viega ProPress

bronze body with Viega ProPress inlet and outlet connections

This Watts Drains industry standard back-to-back

Watts 994RPDA

and brass tailpiece

Watts 740 075 FS 1 1/4 - Part of the 740 Series ZC100F-6NH bronze body with Viega ProPressThis pressure relief valve has a 1 1 4 inch NPTF female inlet, 1 1 2 inch NPTF female outlet, and pressure relief setpoint of 75 psi. The valve can be used for hot water space heating boiler applications to protect against excessive pressure. It features an iron body, non metallic disc to metal seating, and test lever. Includes a nonrestrictive discharge drain line flood sensor with SentryPlus Alert technology to detect excessive water discharges from