8" Double Check Valve With OS&Ys FxG Left Facing

The 8" Double Check Valve With OS&Ys FxG Left Facing is a robust backflow prevention device tailored for commercial fire protection and industrial plumbing systems. Designed to safeguard potable water supplies, it ensures reliable prevention of contaminant reversal in high-demand environments.

• Size and Capacity: Features an 8-inch diameter to accommodate maximum flow rates typical in large-scale fire protection and industrial settings.
• Construction Materials: Main body crafted from fusion-bonded epoxy-coated ductile iron (ASTM A536) for enhanced corrosion resistance in underground and mechanical room installations.
• OS&Y Gate Valves: Left-facing outside stem and yoke gate valves with cast iron bodies and resilient wedges, designed for durable, reliable shutoff and easy isolation during maintenance or testing.
• Check Valve Components: Stainless steel springs (300 series) and fasteners ensure longevity and corrosion resistance of internal parts, critical for sustained performance.
• Sealing System: Reversible EPDM elastomer discs maintain positive internal seals and enable servicing without replacing the entire valve.
• Connection Design: Combination of flanged and grooved (FxG) end connections simplifies integration into existing fire protection piping networks.
• Directional Orientation: Left-facing configuration optimizes pipe layout and valve accessibility in confined or complex system designs.
• Industry Certifications: Certified UL Listed under UL 1469, FM Approved, compliant with ASSE 1015 for backflow prevention, and meets AWWA C510 standards for check valves.
• Operational Range: Supports working pressures up to 175 PSI (12.1 bar) and operates effectively between 33°F and 140°F (0.5°C to 60°C).

This valve ensures consistent backflow protection for potable water systems within commercial fire sprinkler and industrial plumbing applications, reducing the risk of contamination and regulatory non-compliance. Its rigorously tested design supports routine maintenance and inspection procedures, easing system management for fire protection contractors, plumbing engineers, and facility maintenance teams. The left-facing OS&Y gate valves provide straightforward shutoff to isolate sections swiftly during service, while the durable materials and robust construction extend operational life even under demanding pressure and temperature conditions. Compared to single check valve alternatives, this double check valve offers enhanced safety with dual-check redundancy, making it a dependable choice for safeguarding critical water supplies in large-diameter systems.