6" Fig 20Gx Double Check OSY Backflow Prevention Assembly

Protect your potable water supply and maintain code compliance with the 6" Fig 20Gx Double Check OSY Backflow Prevention Assembly from Backflow Direct. This assembly is engineered for fire protection professionals who need a dependable safeguard against reverse water flow.

• Durable Construction: Built from fusion-bonded epoxy-coated ductile iron (ASTM A536) for superior corrosion resistance in mechanical rooms or subterranean setups.
• Premium Internal Components: Utilizes 300-series stainless steel springs and fasteners to withstand cyclic pressure without losing structural integrity.
• Advanced Seal Technology: Features check modules crafted from glass-filled Noryl thermoplastic alongside reversible, replaceable EPDM elastomer discs for a lasting seal.
• OS&Y Valve Design: Outside Stem & Yoke valves provide visible position indication and easy operation without requiring you to dismantle the assembly.
• Regulatory Compliance: UL Listed under UL 1469, FM Approved, ASSE 1015 certified, compliant with AWWA C510, and supports NFPA 13 and NFPA 25 inspection protocols.
• Versatile Installation: Connects easily with ANSI B16.1 flanged ends and AWWA C606 grooved ends for horizontal or vertical upward flow setups.
• Operational Metrics: Rated for a maximum operating pressure of 175 PSI and a temperature range from 33°F to 140°F.

You can easily verify valve positions during routine checks, which helps reduce system downtime and streamlines maintenance tasks. The corrosion-resistant materials promote a long service life while effectively blocking contamination from reaching clean water lines.