The 2-1/2" Backflow Preventor Valve with OS&Y Gate Valve ASTM A536 is engineered for residential fire protection systems, offering robust backflow prevention combined with precise flow control. Ideal for homeowners and fire safety professionals, this valve assembly ensures potable water integrity while providing reliable, easy-to-monitor shutoff capabilities.

• Durable Construction: Main body crafted from ductile iron meeting ASTM A536 standards, designed to resist corrosion and withstand the demands of residential fire protection environments.
• OS&Y Gate Valve: Features a 300-series stainless steel Outside Stem & Yoke gate valve with a visible stem for straightforward valve position verification and precise flow management.
• Reduced Pressure Zone Detector: Integrated detection assembly continuously monitors water flow to detect sprinkler activation or leaks promptly, enhancing system responsiveness and safety.
• EPDM Seals and Seats: Utilizes high-grade EPDM elastomers to ensure watertight sealing with minimal pressure loss, maintaining reliability under varying pressure and temperature conditions.
• Regulatory Compliance: UL 312 listed and FM approved, meeting NFPA 13 and NFPA 25 standards for fire sprinkler system installation and maintenance, ensuring adherence to accepted fire protection guidelines.
• Pressure and Connection Specifications: Rated for up to 175 PSI (12.1 bar) and equipped with 2-1/2" National Standard Thread inlet and outlet connections for seamless integration into standard residential fire sprinkler piping.
• Installation Flexibility: Designed for horizontal mounting in residential mechanical rooms or utility spaces, with easy access for routine operation and maintenance checks.

This backflow preventor valve assembly significantly reduces the risk of potable water contamination during firefighting scenarios by blocking reverse flow with certified reliability. Its integrated flow detector helps users promptly identify sprinkler activations or system leaks, facilitating rapid response and reducing potential water damage. The visible OS&Y gate valve streamlines operational checks, eliminating guesswork in shutoff status while the durable materials assure longevity in mechanical environments commonly found in homes. Its compatibility with standard residential plumbing makes installation straightforward, supporting compliance with fire safety regulations without costly modifications. By investing in this valve, users safeguard their water supply and ensure their fire protection system functions reliably, aligning with practical needs and regulatory demands for residential fire safety.