The 6" Double Check Valve Assembly with OS&Y Female Gasket by Zurn Wilkins is engineered for fire protection and industrial plumbing systems where reliable backflow prevention is essential. Designed specifically for fire sprinkler contractors and facility managers, it safeguards potable water by preventing contamination caused by reverse flow.

• Robust Construction: Made of ductile iron conforming to ASTM A536, the valve offers high mechanical strength and corrosion resistance suitable for demanding fire protection environments.
• Corrosion-Resistant Components: Internal springs and fasteners are crafted from 300-series stainless steel, ensuring long-lasting durability despite exposure to varying water quality and environmental conditions.
• Advanced Check Modules: Incorporates check modules made from high-strength glass-filled thermoplastics that reduce pressure loss and handle high flow efficiently, maintaining system performance.
• Replaceable EPDM Seals: Features reversible elastomer discs in the seat to provide secure sealing and simplify maintenance, extending the valve’s operational lifespan.
• Certified for Safety: UL Listed to UL 1469, FM Approved, and compliant with ASSE 1015 and AWWA C510 standards, it meets stringent requirements for fire protection and potable water systems.
• Pressure & Temperature Ratings: Operates safely up to 175 PSI and temperatures from 33°F to 140°F, fitting typical municipal water supplies and fire suppression needs.
• OS&Y Gate Valves with Female Gasket Ends: These provide reliable, leak-resistant connections and easy visual indication of valve position, streamlining inspections and operational confidence.
• Flexible Installation Options: Designed for horizontal or vertical upward flow, accommodating diverse piping layouts in mechanical rooms or underground setups.

This assembly effectively prevents backflow in fire sprinkler systems, ensuring potable water safety and regulatory compliance with NFPA 13 and local fire codes. Its durable materials and replaceable seals reduce maintenance intervals, while the OS&Y gate valves offer straightforward inspection and operation, making it a dependable choice for maintaining fire protection infrastructure with confidence.