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The WATTS BD911T combination fill valve and backflow preventer consists of a Model 9D backflow preventer and Model BD1156F feed water pressure regulator in one pre-assembled unit. This high-capacity valve is designed for boiler feed lines to provide make-up water and prevent backflow. It features a unique push-button fast fill engagement with auto-stop to prevent over-pressurization.
Combination fill valve and backflow preventer for boiler feed lines with push-button fast fill and auto-stop.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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