This 2 1/2 inch Ames Series 5000SS Reduced Pressure Detector Backflow Preventer Assembly is designed to prevent the reverse flow of fire protection substances and non-potable water into potable water supplies due to backsiphonage and/or backpressure.

It is ideal for protection in continuous pressure piping applications and at cross-connections identified as health hazards and from other contaminants found at the service line entrance.

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.

Design and Construction

• Features a compact modular design with a lightweight stainless steel body for long-term corrosion resistance, maximum strength, and reduced installation costs.
• Equipped with UL and FM Approved OSY (Outside Stem and Yoke) resilient seated gate valves.
• Incorporates thermoplastic cam-check valves with stainless steel hinge pins, cam arm, and cam bearing, designed for maximum flow at low pressure drop.
• The stainless steel relief valve is bottom-mounted, features a balanced rolling diaphragm to eliminate sliding seals, and minimizes maintenance costs and clearance requirements.
• Short end-to-end dimensions facilitate easy retrofits.

Advanced Monitoring

• Includes a flood sensor with SentryPlus Alert® technology to detect continuous discharge from the relief valve, preventing costly damage.
• Furnished with a cubic feet per minute (CFM) meter to detect underground leaks and unauthorized water use.
• The flood alert feature can be activated with an add-on sensor connection kit, compatible with BMS and cellular network communication, or integrated with BAS via RS-485 Modbus or the Nexa® platform through Wi-Fi.