Watts 174A 070 FS 3/4 - Part of the 174A Series roof-hatch-finder and a 1/8 inch automatic

and a 1/8 inch automatic air vent valve

Dura Skrim is a multi-purpose polyethylene film that offers excellent tear resistance

and 36" depths

It is easily opened for gravity circulation

and it is ideal for health hazard applications requiring continuous pressure such as on chemical dispensers or factory machine equipment

Watts 174A 070 FS 3/4 - Part of the 174A Series roof-hatch-finder and a 1/8 inch automaticThis pressure relief valve has a 3 4 inch NPTF female inlet and outlet and a 70 psi pressure relief setpoint. The valve can be used for hot water space heating boiler applications to protect against excessive pressure. It features a bronze 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 the relief valve.