This Colt™ 3 inch reduced pressure 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 health hazards, such as on fire sprinkler systems and from other contaminants found at the service line entrance.

WARNING: It is illegal to use this product in a 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.

Key Components

• Features a stainless steel body with a quick access sleeve, torsion spring check valves, outside stem and yoke (OSY) resilient seated gate valves, and corrosive resistant bottom-mounted pressure relief valve.
• Includes a cubic feet per minute meter (metered bypass) to detect underground leaks and unauthorized water use from the fire sprinkler system.
• Integrated flood sensor with SentryPlus Alert® technology to detect excessive water discharges from the relief valve.
• An add-on sensor connection kit (sold separately) is required to activate the flood sensor for relaying alerts regarding potential flooding events.
• Optional connection kit integrations include BMS, cellular communication, or the Sensor Control Monitor for integration with BAS via RS-485 Modbus or the Nexa® platform via Wi-Fi.

Advanced Features

• Extremely compact design, up to 70% lighter than traditional designs.
• Housing and sleeve constructed from 304 (Schedule 40) stainless steel for durability.
• Groove fittings allow for integral pipeline adjustment and ease of installation.
• Patented link check design ensures lowest pressure loss.
• Unmatched ease of serviceability with replaceable check disc rubber.
• Integrated supervisory switch available as an option on each gate valve of the OS&Y model.