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- Brand: WATTSSeries: 911
- 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.
- Pre-assembled for easy of installation|Easy service accessibility|High capacity fill valve for quick system filling and purging
- WATTS Combination Fill Valve and Backflow Preventer, Series: 911, 1/2 in Nominal, Union Solder x NPT, 100 psi, 212 deg F, Bronze Body, 8-1/2 in L x 5-1/4 in H, Domestic