1/2" Union Solder x NPT Non-Potable Combination Fill Valve & Backflow Preventer
1/2" Union Solder x NPT Non-Potable Combination Fill Valve & Backflow Preventer is backordered and will ship as soon as it is back in stock.
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Features
Features
Description
Description
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.
