This 1 inch reduced pressure zone backflow preventer assembly is designed to prevent the flow of polluted water from entering into the potable water supply due to backsiphonage and or backpressure, in accordance with national plumbing codes and water authority requirements.

Design & Construction

• Features a compact modular design for easy maintenance with a single access cover for in-line repairs.
• Constructed with a bronze body for durability.
• Includes union connections and elbow fittings for 360 degree rotation.
• Equipped with quarter turn ball valve shutoffs with tee handles and top mounted test cocks.
• Contains two in-line independent check valves with captured springs and replaceable check seats.
• An internal relief valve is designed for reduced space requirements.

Flood Detection & Connectivity

• Integrated flood sensor with SentryPlus Alert® technology detects excessive water discharges from the relief valve.
• When paired with an add-on connection kit (sold separately), the sensor activates to relay alerts for potential flooding events.
• Connection kit options include BMS, cellular communication, and the Sensor Control Monitor, enabling integration with BAS via RS‑485 Modbus or the Nexa® platform through Wi-Fi.

Additional Features

• Unique swivel union for versatile installation.
• Light body passages provide low pressure drop.
• No special tools required for servicing internal components.