This 2 inch reduced pressure zone assembly backflow preventer is designed to protect potable water supplies from dangerous cross-connections. It prevents the flow of polluted water from entering the potable water supply due to backsiphonage and/or backpressure, in accordance with national plumbing codes and water authority requirements.

This assembly features a compact modular design that facilitates easy maintenance with a single access cover for in-line repairs. It includes a flood sensor with SentryPlus Alert® technology to detect excessive water discharges from the relief valve.

General Features

• Bronze body construction for durability
• Internal polymer coating provides extended corrosion protection
• Two in-line, independent check valves with captured springs
• Replaceable polymer check seats and removable relief valve seats for economical repair
• Internal relief valve for reduced installation clearances
• Quarter-turn, full port resilient seated ball valve shutoffs with lever handles
• Top mounted test cocks (ball valve type)
• Large body passages provide low pressure drop
• Single access cover and modular check construction for ease of maintenance
• Top entry to all internals for immediate accessibility
• Compact, space saving design with no special tools required for servicing

Flood Sensor Features

• SentryPlus Alert® technology detects continuous discharge from the relief valve
• An add-on connection kit (sold separately) is required to activate the flood sensor for communication capabilities
• Sensor Control Monitor (with connection kit) integrates smart devices with BAS via RS‑485 Modbus or the Nexa® platform through Wi-Fi

WARNING: It is illegal to use this product in any plumbing system providing water for human consumption, such as drinking or dishwashing, in the United States. Before installing, consult your local water authority, building, and plumbing codes.