This Colt™ 6 inch double check detector backflow preventer assembly is designed to prevent the reverse flow of fire protection substances and water of non-potable quality from being pumped or siphoned into the potable water supply due to backsiphonage and/or backpressure. It is ideal for protection at cross-connections identified as non-health hazards, such as on fire sprinkler systems and from other contaminants found at the service line entrance. This assembly is furnished with a gallon per minute meter to detect underground leaks and unauthorized water use.

Features

• Extremely compact design, making it 70% lighter than traditional models, allowing for smaller vaults and enclosures
• Constructed with a 304 (Schedule 40) Stainless steel housing & sleeve for long-term corrosion protection and maximum strength
• Features groove fittings that allow integral pipeline adjustment for easier installation and maintenance
• Equipped with a patented Tri-Link Check valve assembly, providing the lowest pressure loss
• Offers unmatched ease of serviceability with a single access sleeve for easy maintenance
• Includes replaceable check disc rubber for extended product life
• Designed for horizontal, vertical, or N pattern installations in accordance with the direction of the flow arrow on the assembly
• Utilizes UL Classified and FM Approved outside stem and yoke (OS&Y) resilient seated gate valves with an integrated UL Certified, Safety Signaling (Control No. 3L38) supervisory switch on each gate valve
• Comes with four test cocks for verification and testing

It is illegal to use this product in any plumbing system providing water for human consumption, such as drinking or dishwashing, in the United States. Before installing standard material product, consult your local water authority, building and plumbing codes.