6" Double Check Assembly Backflow Preventer Valve with Grooved Butterfly Valve

Protect your commercial and industrial potable water supplies from non-health hazard pollutants with the 6" Double Check Assembly Backflow Preventer Valve. This heavy-duty assembly installs directly into fire protection piping to provide reliable flow control and secure shut-off capabilities for routine system testing. It fights mechanical wear, corrosion, and sealing failures to reduce downtime in mechanical rooms and underground setups.

Engineered to satisfy strict life safety regulations, this assembly complies with NFPA 13 and NFPA 25 requirements for fire protection system installation, periodic inspection, testing, and maintenance. It meets AWWA C510 standards and carries essential industry certifications including UL Listing under UL 1469, FM Approval, and ASSE 1015 certification.

• Ductile Iron Body: Conforms to ASTM A536 with a fusion-bonded epoxy coating to provide exceptional corrosion resistance in underground or mechanical room installations.
• Stainless Steel Components: Utilizes 300-series stainless steel springs and fasteners to resist corrosion and maintain structural integrity under various stresses.
• Check Modules: Features glass-filled Noryl thermoplastic for dimensional stability and chemical resistance that minimizes wear over time.
• EPDM Seats: Equipped with reversible and replaceable EPDM elastomer seats engineered to retain sealing efficiency across temperatures from 33°F to 140°F (0.5°C to 60°C).
• Grooved Butterfly Valve: Integrates grooved butterfly valves that provide shut-off capabilities, quick installation, and easier maintenance.
• Flexible Orientation: Approved for both horizontal and upward vertical flow installations to fit diverse piping layouts.
• Standard End Connections: Conforms to AWWA C606 with grooved end connections for direct compatibility with standard grooved pipe couplings.

Verify all local Authority Having Jurisdiction (AHJ) requirements and consult manufacturer technical data sheets before beginning installation. Note that this item is Non-Refundable and Non-Cancellable.

Documentation: Download Manufacturer Technical Data & Cut Sheet (PDF)