Double Check Valve Assembly, 2 Inch, Lead Free, Bronze, Quarter Turn Shutoff, Small Diameter, Series 850, Freeze Sensor

This 2-inch lead-free double check valve backflow preventer assembly is designed to prevent the backflow of polluted water into the potable water supply due to backsiphonage and/or backpressure. Its compact modular design facilitates easy maintenance with a single access cover for in-line repairs. Ideal for protection in continuous pressure piping applications and at cross-connections identified as non-health hazards, and for contaminants at the service line entrance. This assembly consists of a lead-free cast copper silicon alloy body construction, NPT end connections, top-mounted test cocks, quarter-turn ball valve shutoffs, two in-line independent positive seating check modules, captured springs, and replaceable check discs and seats. The double check valve includes a freeze sensor for use with SentryPlus Alert® technology to signal facility personnel when the temperature nears and reaches the freezing point. Freeze alerts feature available with add-on connection kit for Wi-Fi networks, building management systems (BMS), and irrigation management systems (IMS).