BD911

Combination Bronze Dial Set Fill Valve and Backflow Preventer

  • For use on boiler feed lines to provide make-up water to the boiler and prevent backflow
  • Combination fill valve and backflow preventer in one pre-assembled unit
  • Unique push-button fast fill engagement with auto-stop prevents over-pressurization
  • Dial indicator eliminates need for pressure gauge

Approval/Certification Information

For product-specific approval information, please refer to the product’s specification sheet (see literature section above) or ask a Watts representative. For general information regarding any approval certification partners identified in the specification sheet, please visit our certification partners’ websites:


ASSE CSA FM Approvals NSF
UL ULC USC WQA