The Double Check Valve Assembly is a high-performance backflow prevention device engineered for fire protection professionals and facility managers. Designed to safeguard potable water supplies from contamination in commercial and industrial environments, this assembly ensures consistent performance and regulatory compliance for fire sprinkler systems.

• Durable Construction: Fabricated from fusion-bonded epoxy-coated ductile iron (ASTM A536) to resist corrosion and mechanical wear in both subterranean and mechanical room environments.
• Precision Engineering: Equipped with 300-series stainless steel springs and fasteners for extended durability and corrosion resistance under continuous operation.
• Advanced Check Modules: Dual check modules utilize glass-filled thermoplastic for dimensional stability and superior wear resistance, ensuring long-term sealing integrity.
• Reliable Sealing: Reversible and field-replaceable EPDM elastomer discs provide a tight seal to prevent backflow leakage and simplify maintenance.
• Flow Control Options: Integrated valve options include Outside Screw and Yoke (OS&Y) gate valves for clear visual position confirmation or precision-machined butterfly valves for smooth manual control and reliable shutoff.
• Installation Flexibility: Supports both horizontal and vertical upward flow orientations, with connections conforming to AWWA C606 for quick, secure mechanical joint integration.

Performance and Compliance:

• Industry Certifications: UL 1469 listed, FM approved, ASSE 1015 compliant, and meets AWWA C510 standards.
• Operational Ratings: Rated for a maximum working pressure of 175 PSI (12.1 bar) and effective for water temperatures between 33°F and 140°F (0.5°C to 60°C).
• Safety Standards: Fully supports NFPA 13 and NFPA 25 fire protection codes for installation, inspection, and maintenance.

This assembly provides a critical safeguard for municipal water supplies, preventing reverse flow during pressure fluctuations or system repairs. Its rugged build and corrosion-resistant internal components reduce maintenance frequency and downtime, making it a dependable choice for maintaining system readiness and operational safety in high-demand fire suppression networks.