4" 3000SSOSY Double Detector Check Valve Manufacturer Valve

The 4" 3000SSOS&Y Double Detector Check Valve is specifically engineered for fire protection systems, designed for professionals who demand reliability and precise flow detection in critical applications. Its robust construction and compliance with rigorous safety standards make it a trusted choice for preventing backflow and ensuring system integrity.

• Durable Materials: Built with an ASTM A536 ductile iron body featuring a corrosion-resistant fusion-bonded epoxy coating, complemented by 300-series stainless steel springs and fasteners for long-lasting performance.
• Advanced Check Modules: Incorporates glass-filled thermoplastic material inside the check valves, delivering strength and resilience to withstand high flow pressures without compromising functionality.
• Replaceable Sealing: Utilizes EPDM elastomer discs as valve seats, which offer dependable sealing and easy replacement to maintain optimal valve operation over time.
• OS&Y Rising Stem Design: The Outside Stem & Yoke mechanism allows for clear visual indication of valve status and facilitates straightforward manual operation and inspection.
• Regulatory Compliance: UL Listed to UL 312, FM Approved, ASSE 1012 certified, and compliant with NFPA 13 and NFPA 25 standards, ensuring it meets necessary fire sprinkler system safety and performance requirements.
• Versatile Installation: Designed for horizontal or vertical (upward flow) installation with ANSI B16.1 flanged and AWWA C606 grooved end connections, allowing seamless integration into existing fire protection piping systems.
• Pressure & Temperature Ratings: Supports a maximum working pressure of 300 PSI (20.7 bar) and operates reliably within temperatures ranging from 33°F to 140°F (0.5°C to 60°C), making it suitable for indoor and outdoor environments.
• Double Detector Configuration: Features dual pressure differential detection ports that provide real-time flow alerts, simplifying diagnostics and facilitating early detection of leaks or system tests without service interruption.
• Maintenance Friendly: Designed for straightforward annual testing per NFPA 25 guidelines, with reversible seats to extend valve lifespan and reduce downtime.

This double detector check valve is an essential component for fire protection professionals focused on safeguarding potable water supplies and maintaining code compliance. Its unique dual-check design provides increased redundancy, effectively preventing backflow unless both checks fail—enhancing system safety beyond single-check valves. The clear visual indicators and pressure detection simplify routine inspections and troubleshooting, reducing maintenance complexity. Ideal for high-pressure sprinkler risers, this valve fits seamlessly into various fire protection systems, delivering durable performance in environments ranging from mechanical rooms to underground vaults. Installing the 4" 3000SSOS&Y valve supports reliable fire sprinkler operation and helps protect buildings by ensuring accurate flow monitoring and backflow prevention.