The 350AST Double Check Backflow Preventer Valve is engineered for fire protection systems in commercial, industrial, and residential environments. It safeguards potable water by effectively preventing backflow, ensuring water remains uncontaminated and compliant with strict safety standards.

• Durable Construction: Made from corrosion-resistant ductile iron with a fusion-bonded epoxy coating, with an option for high-grade stainless steel, designed to endure harsh fire system conditions.
• Dual Check Mechanisms: Incorporates two independent check modules crafted from glass-filled Noryl™ thermoplastic, providing redundant sealing to reliably block reverse water flow.
• Versatile Installation: Compatible with ANSI flanged or AWWA grooved connections, supporting both horizontal and vertical mounting to fit a wide range of fire protection system layouts.
• Easy Maintenance: Features reversible EPDM elastomer seats that allow component servicing without removing the valve, reducing downtime and maintenance expenses.
• Certified Safety Standards: Meets UL, FM, and ASSE 1015 certifications and adheres to NFPA 13 and NFPA 25 codes, delivering trusted performance in critical fire safety applications.
• Wide Operational Range: Supports pressure up to 175 PSI and temperature between 33°F and 140°F, suitable for diverse fire protection scenarios.

This backflow preventer valve protects fire suppression systems by maintaining clean water and preventing contamination caused by reverse flow. It is essential for facility managers and fire safety professionals seeking durable, reliable, and easy-to-maintain solutions that reduce the risk of costly contamination incidents. The 350AST’s robust materials and flexible installation ensure continuous, trouble-free operation, preserving water quality and infrastructure integrity in demanding fire protection environments.