Watts 1/2 B911 (PRESS XTHD) - Part of the 911 Series ZA100F-8NH 6 BAR at 99 degree

6 BAR at 99 degree C Retainer Cover Material Lead Free Cast Copper Silicon Alloy Retainer Cover Type Tapped with Closure Plug Screen Material Stainless Steel Screen Size 20 MESH Seat Material Does Not Apply To Product Series LF777SI Strainer Type Wye WOG Rating 400 PSI at 210 degrees F Specification Sheet - LF777SI

UPC - 098268846416

one relief upper and one lower stem o-ring

and an adjustable heel-proof nickel bronze strainer with a surface-membrane clamp

Watts 1/2 B911 (PRESS XTHD) - Part of the 911 Series ZA100F-8NH 6 BAR at 99 degreeThis 1 2 inch bronze combination fill valve and backflow preventer is for use in commercial and residential hydronic heating systems to provide make up water to the boiler, and prevent backflow when supply pressure falls below system pressure. It consists of a bronze backflow preventer, model 9D, and a bronze feed water pressure regulator, model BD1156F, in one pre assembled unit. The high capacity fill valve provides quick system filling and purging.