This 2 inch lead free reduced pressure zone backflow preventer assembly is equipped with a flood sensor featuring SentryPlus Alert® technology to detect continuous water discharges from the relief valve. It is designed to prevent the flow of polluted water from entering the potable water supply due to backsiphonage or backpressure, ideal for continuous pressure piping applications and health hazard cross-connections.

Sensor and Alerting

• Includes a flood sensor with SentryPlus Alert technology to detect continuous discharge from the relief valve.
• Supports an add-on sensor connection kit to extend flood monitoring on compatible assemblies.
• Integrates with the Sensor Control Monitor to deliver maintenance alerts.
• Transmits alerts to Building Automation Systems (BAS) via RS-485 Modbus or to the Nexa® platform by Wi-Fi connectivity.

Design and Construction

• Features lead-free bronze body construction with NPT end connections.
• Includes an integrated bronze strainer.
• Equipped with quarter turn ball valve shutoffs and tee handles.
• Incorporates two poppet style check valves and replaceable check seats.
• Designed with a compact, space-saving profile.
• Features separate access covers for the check valves and relief valve.
• Includes a bottom-mounted relief valve for reduced space requirements.

Ease of Maintenance and Installation

• Top-mounted, screwdriver-slotted test cocks for easy testing in reduced clearance installations.
• EZ twist relief valve cover with a quarter turn locking joint captures the spring load during repair to facilitate disassembly.