ASSE 1048 Listed|UL Classified (US & Canada)|FM Approved|IAPMO/cUPC|AWWA Standard C510 Compliant|NFPA 13, 14, 15, 16, 20, 22 & 24 Compliant|ASME B16.1 Class 125|AWWA Class D

• Furnished with a gallon per minute meter Replaceable seats and discs No special tools are required for servicing

This 2 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 in accordance with national plumbing codes and water authority requirements. It is ideal for protection at cross-connections identified as non-health hazards such as on fire protection systems and from other contaminants found at the service line entrance. This compact modular design with a single access cover for easy maintenance is approved for horizontal and vertical flow up installation. It consists of a bronze body, outside stem and yoke resilient seated gate valves, captured spring check valves, and four test cocks. It comes with a gallon per minute meter to detect underground leaks and unauthorized water use. The double check valve includes a freeze sensor for use with SentryPlus Alert(R) technology to signal when ambient temperature approaches the freeze threshold. Activated through an add-on connection kit, the sensor also triggers freeze alerts to facility personnel. Connection kit available for building/irrigation management system (BMS/IMS).