The 10" Watts 757 DCDA OSY Lead-Free Backflow Preventer Valve is engineered for fire protection professionals and facility managers committed to maintaining safe and uncontaminated potable water supplies. It combines durable construction with integrated flow monitoring to support reliable performance in fire sprinkler systems.

• Lead-Free Stainless Steel Body: Provides superior corrosion resistance for extended service life in demanding fire protection environments.
• Dual Check Valve Design: Prevents backpressure and backsiphonage, effectively safeguarding potable water from contamination.
• OS&Y Gate Valve: Features an Outside Stem and Yoke gate valve with a clear open/close indicator to facilitate quick inspections and precise system isolation.
• Integrated GPM Meter: Calibrated flow meter delivers real-time monitoring of water flow, enabling proactive detection of irregular system conditions.
• Regulatory Compliance: UL Listed per UL 312, FM Approved, and compliant with NFPA 13 and NSF/ANSI 372 standards to meet stringent fire and potable water safety requirements.
• High Pressure Rating: Rated for maximum working pressure of 175 PSI (12.1 bar), suitable for both horizontal and vertical installations adapting to a variety of piping configurations.

This backflow preventer valve ensures fire sprinkler systems operate with heightened reliability by minimizing contamination risks through its dual-check design, outperforming single-check or non-metered alternatives. Its visible OS&Y valve stem streamlines routine inspections and emergency shutdowns, saving time and effort for maintenance teams. With the built-in flow meter providing accurate, real-time water flow data, facility managers can maintain compliance and respond swiftly to potential system anomalies. An ideal choice for fire protection contractors and engineers, this valve balances robust safety features, regulatory adherence, and operational transparency to protect both lives and infrastructure effectively.