Watts Automatic Fill Valve for Hot Water Boiler, B911S-M3
Product details
| Management number | 228209907 | Release Date | 2026/05/31 | List Price | $52.00 | Model Number | 228209907 | ||
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Watts B911S-M3 Automatic Fill Valve for Hot Water Boiler is a combination fill valve and backflow preventer for use in the boiler feed lines in commercial and residential hydronic heating systems. It provides make-up water to the boiler and prevents backflow when supply pressure falls below system pressure. It consists of a bronze backflow preventer (Model 9D) and a bronze feed water pressure regulator (Model 1156F) in a single pre-assembled unit. The high capacity fill valve provides quick system filling and purging. Size is 1/2 in. union solder inlet x NPT threaded outlet connections. The maximum pressure is 100 psi.
- For use in boiler feed lines in hydronic heating systems
- Combination feed water pressure regulator and backflow preventor
- Quick system filling and purging
- All bronze construction
- 1/2 in. union solder inlet x NPT threaded outlet connection
| UPC | 098268918526 098268918519 |
|---|---|
| ASIN | B00093D1CM |
| Size | Size 1/2 In |
| Brand Name | Watts |
| Unit Count | 1.0 Count |
| Valve Type | Combination Fill Valve/Backflow |
| Item Weight | 2.5 Pounds |
| Thread Size | 0.5 inches |
| Thread Type | NPT |
| Manufacturer | Watts |
| Model Number | B911S-M3 |
| Material Type | Bronze |
| Connector Type | National Pipe Tapered (NPT), Female NPT (FNPT) |
| Item Type Name | Automatic Fill Valve for Hot Water Boiler |
| Exterior Finish | Bronze |
| Item Dimensions | 9.6 x 0.1 x 10.8 inches |
| Number of Ports | 2 |
| Specification Met | ASSE 1012 |
| Included Components | Valve |
| Inlet Connection Size | 0.5 Inches |
| Inlet Connection Type | National Pipe Tapered |
| Outlet Connection Size | 0.5 Inches |
| Outlet Connection Type | FNPT |
| Manufacturer Part Number | 0386461 |
| Manufacturer Warranty Description | Watts (the "Company") warrants each product to be free from defects in material and workmanship under normal usage for a period of one year from the date of original shipment. In the event of such defects within the warranty period, the Company will, at its option, replace or recondition the product without charge |
| Global Trade Identification Number | 00098268918526 |
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