The 10" 3000SS DOSY Double Check Valve Backflow Preventor is engineered specifically for fire protection systems requiring dependable backflow prevention with high flow capacity. Ideal for commercial, industrial, and residential fire sprinkler setups, this valve offers durable performance under demanding conditions.

• Material Construction: Features a ductile iron main body with a corrosion-resistant finish, complemented by 300-series stainless steel springs and fasteners, ensuring longevity even in harsh environments.
• Valve Components: Check modules made from glass-filled thermoplastic provide high strength and resistance to wear, while EPDM elastomer seat discs are reversible and replaceable for efficient maintenance.
• Regulatory Certifications: UL Listed (UL 1469), FM Approved, complies with ASSE 1015 and AWWA C510 standards, ensuring top-tier safety and performance for fire protection water control systems.
• Operating Parameters: Handles maximum working pressure of 175 PSI (12.1 bar) with an operating temperature range of 33°F to 140°F (0.5°C to 60°C), suitable for both underground and mechanical room installations.
• Flexible Connection Options: Available with ANSI B16.1 standard flanged ends or AWWA C606 grooved ends to integrate seamlessly with existing piping systems.
• Installation Versatility: Designed for both horizontal and vertical installation orientations with upward water flow, accommodating diverse fire protection system layouts.
• Maintenance Ease: Service-friendly design allows for quick inspection and replacement of internal components without extensive disassembly, helping reduce system downtime and meet NFPA 25 inspection requirements.

This double check valve effectively prevents backflow contamination in fire suppression systems by maintaining an airtight seal and consistent flow control. Its robust construction counters corrosion and wear, extending service life under wet and corrosive conditions commonly found in fire protection environments. By choosing the 10" 3000SS DOSY, engineers and maintenance teams can rely on a compliant, high-capacity solution that supports regulatory compliance and safeguards potable water supplies. Whether for new installations or upgrades, this valve delivers dependable performance essential for protecting water quality and building safety.