10" Reduced Pressure Backflow Detector With OSY Valve

The 10" Reduced Pressure Backflow Detector with OSY Valve by Zurn Wilkins is a specialized device designed for residential fire protection and plumbing systems. Ideal for contractors, fire protection engineers, and facility managers, this unit safeguards potable water supplies from contamination by preventing backflow with reliable, low-maintenance operation.

• Durable Construction: Main body crafted from fusion-bonded epoxy-coated ductile iron (ASTM A536) ensures resistance against mechanical stress and corrosion in demanding water environments.
• Corrosion-Resistant Internal Parts: Features 300-series stainless steel springs and fasteners for lasting performance and consistent valve operation.
• Precision Check Modules: Made from glass-filled Noryl™ thermoplastic or equivalent, providing strong structural integrity and dependable sealing under pressure variations.
• Replaceable EPDM Seats: Reversible elastomer discs provide a secure, positive seal to effectively block backflow and maintain water purity.
• OS&Y Valve Design: Outside Stem and Yoke configuration offers clear valve position indication, easing isolation, inspection, and servicing tasks.
• Certifications: UL 312 Listed, FM Approved, and compliant with ASSE 1013 and NFPA 13/25 standards, confirming suitability for residential backflow prevention and fire protection setups.
• Versatile Installation: Compatible with both horizontal and vertical piping orientations, featuring NRS OS&Y valve ends for seamless integration into existing 10-inch residential fire protection lines.
• Operational Capacity: Supports pressures up to 175 PSI and temperatures ranging from 33°F to 140°F, accommodating year-round residential conditions.

This backflow detector is essential for preventing harmful cross-contamination caused by pressure fluctuations in fire sprinkler and irrigation systems. Its reduced pressure zone design minimizes pressure loss while delivering reliable protection, making it easier to maintain continuous system operation during routine inspections or repairs. The robust OS&Y valve setup provides visible valve status and simplifies maintenance, granting contractors and facility managers enhanced control and confidence. By choosing this Zurn Wilkins unit, homeowners and professionals secure a compliant, durable, and efficient solution that upholds safe, clean water delivery within residential fire protection applications.