Watts 1/2 B911 (PRESS XTHD) - Part of the 911 Series snake fencing and 4-corner grate lockdown for

and 4-corner grate lockdown for dynamic-loading conditions

ZM400SS-4IC

It has high capacity performance and a simplified servicing design

Features Kostil polymer window

Package Details – Neutral channel

Watts 1/2 B911 (PRESS XTHD) - Part of the 911 Series snake fencing and 4-corner grate lockdown forThis 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.