10" Watts 757 DCDA OSY Lead-Free Backflow Preventer Valve
R 408,270.00
Sale price
R 408,270.00
Regular price
R 626,553.00
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10" Watts 757 DCDA OSY Lead-Free Backflow Preventer Valve
R 408,270.00
Sale price
R 408,270.00
Regular price
R 626,553.00
Shipping calculated at checkout
The 10" Watts 757 DCDA OSY Lead-Free Backflow Preventer Valve is engineered for commercial fire protection systems to safeguard potable water supplies from contamination caused by backpressure or backsiphonage. Installed within the main fire suppression water supply assembly, this dual-check valve configuration with an integrated GPM meter monitors water flow and isolates lines during emergencies. It satisfies requirements set by NFPA 13 for fire sprinkler system installations and complies with lead-free mandates, protecting municipal drinking water networks while ensuring reliable hydraulic performance during a fire event.
Designed for trade professionals, the assembly features an Outside Stem and Yoke (OS&Y) gate valve that gives you a clear visual indicator of whether the valve is open or closed. The integrated flow meter delivers real-time water tracking, letting your team detect unauthorized water usage or line anomalies instantly. Built to withstand demanding mechanical room environments, the unit is rated up to 175 PSI and adapts easily to horizontal or vertical piping layouts.
Key Features & Construction
- Lead-Free Stainless Steel Body: Delivers superior corrosion resistance for an extended service life in high-moisture fire protection rooms.
- Dual Check Valve Design: Protects against backpressure and backsiphonage in non-health-hazard applications involving pollutants that are objectionable but not toxic. This assembly is not intended for health-hazard applications involving toxic contaminants.
- OS&Y Gate Valves: Includes outside stem and yoke gate valves with easy-to-read open and close indicators for quick inspections and positive shutoffs.
- Integrated GPM Meter: Provides real-time flow monitoring so you can track water usage and spot irregular system conditions proactively.
- High Working Pressure: Rated for a maximum working pressure of 175 PSI (12.1 bar) to handle commercial municipal water supplies.
- Flexible Installation: Installs securely in either horizontal or vertical piping configurations to match your mechanical room layout.
Technical Specifications & Compliance Table
| Watts Regulator Co |
| 757 DCDA OSY (LF757DCDA) |
| 10" |
| 175 PSI (12.1 bar) |
| N/A |
| N/A |
| Lead-Free Stainless Steel Body |
| UL Listed (per UL 312), FM Approved |
| NFPA 13, NSF/ANSI 372 |
Always verify local Authority Having Jurisdiction (AHJ) mandates and consult the engineering data sheet before starting your installation.
Documentation: Download Manufacturer Technical Data & Cut Sheet (PDF)
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