Watts 1/2" Back Flow Regulator with Fill Valve

1/2" Back Flow Regulator with Fill Valve Series 911 combination fill valve and backflow preventer consists of a Model 9D backflow preventer and Model 1156F feed water pressure regulator in one pre-assembled unit. This valve is designed for use on boiler feed lines to provide make-up water to the boiler and prevent backflow when supply pressure fails below system pressure. Watts 0386461 Features: Pre-assembled Designed for easy service accessibility High capacity fill valve for quick system filling and purging Watts 0386461 Specifications: Connection Size: 1/2" Weight: 3.7 lbs. Additional Watts Links Browse all Watts Products