Watts 0386463 B911T-M3 1/2" Union FNPT x FNPT Combination Fill Valve and Backflow Preventer

Watts 0386463 Details

This Watts 1/2" union FNPT x FNPT combination fill valve and backflow preventer is designed to be used on boiler feed lines of hydronic heating systems, providing make-up water to the boiler and preventing backflow when supply pressure falls below system pressure. It features 1/2" union FNPT inlet and FNPT threaded outlet connections and an all bronze body.

This unit consists of a model 9D bronze backflow preventer and a model 1156F bronze feed water pressure regulator in a pre-assembled unit, making it easy to install. It has easy service accessibility and a high capacity fill valve for quick system filling and purging. With an adjustment range of 10 to 25 PSI set at 15 PSI, this unit has a maximum working pressure of 100 PSI and a maximum temperature of 212 degrees Fahrenheit.

Because this item is not stocked in our warehouse, processing, transit times and stock availability will vary. If you need your items by a certain date, please contact us prior to placing your order. Expedited shipping availability may vary. We cannot guarantee that this item can be cancelled off of the order or returned once it is placed.