Watts B911T-M3 (W/PRESS) 1/2 - Part of the 911 Series chat-hdpe a 12½″ round top with

a 12½″ round top with a secured ductile-iron heel-proof grate

The pressure is rated 600 psi (41 bar) WOG and the maximum temperature is 406 F (208 C) at 100 psi (6

Quick-connect union inlet and outlet

For projects requiring added protection

Watts B911T-M3 (W/PRESS) 1/2 - Part of the 911 Series chat-hdpe a 12½″ round top withThis 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