The 2-1/2" Reduced Pressure Backflow Preventer Valve with OSY Valve is engineered for residential fire protection systems, providing reliable backflow prevention combined with visual valve isolation. Designed for fire system installers, plumbing professionals, and facility managers, this device ensures compliance with critical safety standards while offering straightforward maintenance and inspection.

• Material Durability: Heavy-duty cast iron body with corrosion-resistant coatings and stainless steel internal components ensure resilience against harsh environmental conditions and extended service life.
• Z Pattern Flow Design: Optimized to minimize pressure loss and maximize flow efficiency during activation, supporting consistent water delivery in fire protection scenarios.
• OS&Y Valve Mechanism: Outside Screw and Yoke design provides positive visual indication of valve position, simplifying inspections and system verification.
• Regulatory Compliance: UL Listed, FM Approved, and compliant with ASSE standards for backflow prevention, meeting NFPA 13 and NFPA 25 guidelines for fire sprinkler systems.
• Operational Range: Suitable for pressures up to 175 PSI (12.1 bar), compatible with typical residential municipal or private water supplies.
• Flexible Installation: Compact footprint and Z pattern allow installation in tight mechanical spaces with horizontal or vertical orientations, compatible with NRS threaded or grooved connections.
• Visual Identification: Finished in vivid red for immediate recognition during inspections or emergencies, enhancing safety and operational awareness.

This Backflow Preventer Valve addresses the critical need to prevent contamination in residential fire protection plumbing by detecting reduced pressure conditions promptly and maintaining system integrity. Its durable construction minimizes downtime through low-maintenance operation, while the integrated OS&Y valve enables easy system isolation for servicing without interrupting water flow. Installing this device helps ensure compliance with fire safety codes and prevents costly water supply contamination, making it an essential component for any residential fire sprinkler system.