This 3 inch stainless steel reduced pressure detector backflow preventer assembly protects potable water supplies from hazardous cross-connections caused by backsiphonage or backpressure in non-potable service applications such as irrigation, fireline, or industrial processing.

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 System

• Includes a flood sensor with SentryPlus Alert technology to detect continuous discharge from the relief valve.
• An add-on sensor connection kit is required to activate the flood sensor and enable communication.
• 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.
• The sensor relays a signal to facility personnel for corrective action, thus limiting flooding and costly damage.
• Watts® is not responsible for the failure of alerts due to connectivity issues, power outages, or improper installation.

Design and Construction

• Stainless steel body provides long-term corrosion resistance, maximum strength, and reduces installation/shipping costs due to its lightweight nature.
• Features domestic outside stem and yoke (OSY) resilient seated gate valves.
• Short end-to-end dimensions make retrofit installations easier.
• Bottom-mounted relief valve reduces clearance requirements.
• Thermoplastic cam-check valves provide maximum flow at low pressure drop.
• No special tools are required for servicing.
• Compact construction allows for smaller enclosures.
• Stainless steel relief valve uses a balanced rolling diaphragm, eliminating sliding seals and lowering maintenance costs.
• A gallons per minute (GPM) meter is included on the bypass line to detect underground leaks and unauthorized water use.