Watts B911S-M3 - Part of the 911 Series ZA100F-2NH UPC - 098268522198

UPC - 098268522198

ZN415BL-4IC

is H-20 rated and rated for NDS Class C loads (up to 325 psi)

CAD details

providing a highly accurate flow measurement

Watts B911S-M3 - Part of the 911 Series ZA100F-2NH UPC - 098268522198This 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 1156F, in one pre assembled unit. The high capacity fill valve provides quick system filling and purging. It