The 12" Double Check Valve with OSY and Low Flow Features is designed for fire protection and potable water systems demanding reliable backflow prevention. Ideal for fire protection engineers, facility managers, and industrial plumbers, this valve ensures water safety while accommodating a range of flow conditions with precision.

• Durable Construction: Made with a fusion-bonded epoxy-coated ductile iron body compliant with ASTM A536, offering superior corrosion resistance for long-lasting performance in harsh environments.
• Corrosion-Resistant Components: Internal springs and fasteners crafted from 300-series stainless steel ensure consistent operation and durability under continuous service.
• Advanced Check Modules: Glass-filled Noryl™ or equivalent high-strength thermoplastic components deliver wear resistance and structural integrity for reliable backflow prevention.
• Replaceable EPDM Seats: Reversible and replaceable elastomer discs maintain a secure seal and simplify maintenance without requiring full valve replacement.
• OS&Y Style Gate Valves: Outside Screw and Yoke design allows for easy isolation and servicing of the valve, minimizing downtime during maintenance.
• Low Flow Capability: Precisely engineered to operate effectively during low demand periods, ensuring consistent backflow protection without sacrificing system responsiveness.
• Regulatory Compliance: Certified under UL 1469, FM Approved, meets ASSE 1015, AWWA C510 standards, and supports NFPA 13 and 25 compliance for fire protection systems.
• Versatile Installation: Rated for working pressures up to 175 PSI with a temperature range of 33°F to 140°F, suitable for both horizontal and vertical upward-flow orientations with compatibility for standard 12" flange or grooved end piping.

This valve addresses the critical need to prevent contamination of potable water in fire protection systems while providing operational flexibility across different flow rates. Its OS&Y design significantly reduces maintenance complexities by allowing partial system isolation, eliminating full shutdown during repairs or inspection. The low flow feature enhances system readiness, especially in fire sprinkler systems where accurate control in low-demand scenarios is crucial. As a result, the 12" Double Check Valve with OSY and Low Flow Features supports reliable, code-compliant fire safety infrastructure, minimizing risk and operational interruptions in commercial and industrial environments.