This 8 inch Colt Series C500 Reduced Pressure Detector Backflow Preventer Assembly is engineered to prevent the reverse flow of non-potable water into the potable water supply, ideal for health hazard cross-connections such as fire sprinkler systems and industrial processing applications. It protects against backsiphonage and backpressure, ensuring water safety.

This assembly features a 304 stainless steel body with a quick access sleeve, torsion spring check valves, and resilient seated outside stem and yoke gate valves.

Flood Detection & Monitoring

• Includes a flood sensor with SentryPlus Alert® technology to detect continuous discharge from the relief valve.
• Requires an add-on sensor connection kit for activation, enabling alerts for potential flooding events.
• Connects with a Sensor Control Monitor for integration with BAS via RS-485 Modbus or the Nexa® platform via Wi-Fi.

Key Features

• Extremely compact design and 70% lighter than traditional models.
• Housing and sleeve constructed from 304 (Schedule 40) stainless steel.
• Groove fittings for integral pipeline adjustment and easy installation.
• Patented link check design for lowest pressure loss and unmatched ease of serviceability.
• Replaceable check disc rubber.
• Bottom-mounted cast stainless steel relief valve.
• Metered bypass to detect leakage or theft of water from the fire sprinkler system, furnished with a cubic feet per minute meter.
• Lead Free* bronze body test cocks.
• OS&Y model includes an integrated supervisory switch option on each gate valve.

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.