This Colt™ 3 inch lead free reduced pressure detector backflow preventer assembly provides protection to the potable water system from contamination. It 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 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.

This backflow preventer assembly features a compact modular design with a Type 304 (Schedule 40) stainless steel body and a quick access sleeve. It includes torsion spring check valves, outside stem and yoke (OSY) resilient seated gate valves, and test cocks. A corrosion-resistant bottom-mounted pressure relief valve is also incorporated.

Advanced Monitoring Features

• Furnished with a cubic feet per minute meter to detect underground leaks and unauthorized water use from the fire protection system.
• Includes a flood sensor with SentryPlus Alert® technology to detect excessive water discharges from the relief valve.
• When paired with an add-on connection kit, the sensor is activated to relay alerts for potential flooding events.
• Connection kit options enable integration with BAS via RS-485 Modbus or the Nexa® platform through Wi-Fi, and also include BMS and cellular communication options.
• The OS&Y model includes an option for an integrated supervisory switch on each gate valve.

An add-on connection kit is required to activate the flood sensor. Without the connection kit, the flood sensor is a passive component and will not communicate with any other device.