Watts BD911 (W/PRESS) 1/2 - Part of the BD911 Series ZA100F-8NH and a gauge port tapping

and a gauge port tapping furnished with a pipe plug

parking areas

Easier to install than clamp based systems and will not rust

Adjustable nickel-bronze dome strainer to optimize flow and debris handling

Watts BD911 (W/PRESS) 1/2 - Part of the BD911 Series ZA100F-8NH and a gauge port tappingThis 1 2 inch bronze combination dial set 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