This 8 inch lead free reduced pressure zone backflow preventer assembly prevents reverse flow of polluted water from entering into the potable water supply due to backsiphonage or backpressure. It features an epoxy coated cast iron body, outside stem and yoke (OSY) resilient seated gate valves, and a flood sensor.

Key Features

• Equipped with a flood sensor featuring SentryPlus Alert® technology to detect excessive water discharges from the relief valve.
• An add-on sensor connection kit is available for activation, allowing alerts for potential flooding events to be relayed.
• Connection kit options include BMS, cellular communication, and the Sensor Control Monitor for integration with BAS via RS-485 Modbus or the Nexa® platform through Wi-Fi.
• ArmorTek® coating technology, a patented 3-part advanced epoxy system, resists microbial induced (MIC) and exposed metal substrate corrosion.
• NYC version includes four sets of 304 stainless steel bolts/nuts with a 1/4 inch hole drilled axially through the bolts and a restrictor plate to limit discharge.
• Features replaceable seats and stainless steel internal parts for durability and easy maintenance.
• Contains captured spring check assemblies and a field reversible pressure differential relief valve.
• Includes top mounted test cocks for easy testing.

An add-on connection kit is required to activate the flood sensor for communication. Without the kit, the sensor will detect excess flow but will not communicate with external devices. Installation of a drain line is recommended. An air gap is necessary when installing a drain line.