This Colt™ 10 inch lead free 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.

Design & Construction

• Extremely compact design, 70% lighter than traditional designs
• Type 304 (Schedule 40) stainless steel housing and sleeve for superior durability and corrosion resistance
• Groove fittings for integral pipeline adjustment
• Patented link check for lowest pressure loss
• Unmatched ease of serviceability with replaceable check disc rubber
• Features outside stem and yoke (OS&Y) resilient seated gate valves
• Bottom-mounted cast stainless steel relief valve
• Lead Free* construction with wetted surfaces containing less than 0.25% lead by weight for compliance with installation requirements

Leak & Flood Detection

• Includes a metered bypass to detect leakage or theft of water from the fire sprinkler system
• Equipped with a flood sensor with SentryPlus Alert® technology to detect excessive water discharges from the relief valve
• The flood sensor relays a signal that triggers a multichannel alert (call, email, text) to notify personnel about potential flooding
• The OS&Y model includes an option for an integrated supervisory switch on each gate valve
• Flood alert feature activated by an add-on sensor connection kit

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. A retrofit sensor connection kit is also available for existing installations.