This 3 inch reduced pressure detector backflow preventer assembly is designed to prevent backsiphonage and backpressure of hazardous materials into potable water supplies. It is ideal for continuous pressure piping applications and cross-connections identified as health hazards.

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 standard material product, consult your local water authority, building and plumbing codes.

Flood Detection

• Includes a flood sensor with SentryPlus Alert technology to detect continuous discharge from the relief valve.
• Requires an add-on sensor connection kit (sold separately) to activate the flood sensor and enable alerts.
• When activated, the sensor relays signals for corrective action, preventing costly damage and limiting flooding.
• Integrates with Building Automation Systems (BAS) via RS-485 Modbus or the Nexa platform through Wi-Fi when paired with the Sensor Control Monitor (sold separately).

Construction & Design

• Features a short lay length and lightweight stainless steel body for easy installation and reduced shipping costs.
• Designed with UL Classified and FM Approved outside stem and yoke (OSY) resilient seated gate valves and thermoplastic cam-check valves.
• The stainless steel relief valve has a balanced rolling diaphragm, eliminating sliding seals and lowering maintenance needs.
• Cam-check valves offer maximum flow at low pressure drop.
• No special tools are required for servicing due to its compact and modular design.
• All internal parts are accessible via a single cover with a two-bolt grooved coupling.
• Equipped with four bronze body ball type test cocks and a hydraulically balanced bypass line (less meter).