The Watts 6 inch 994RPDA-OSY-CFM-FS Reduced Pressure Detector Assembly is designed to prevent the reverse flow of liquids due to backpressure or backsiphonage in health hazard applications. This assembly includes a flood sensor with SentryPlus Alert® technology to detect excessive water discharges from the relief valve, helping to prevent costly damage.

Its compact modular design features a short lay length stainless steel body, test cocks, corrosive-resistant stainless steel bottom mounted relief valve, torsion spring check valves, and outside stem and yoke resilient seated gate valves. It also comes furnished with a cubic foot per minute (CFM) meter to detect underground leaks and unauthorized water use.

Primary Applications

• Protects potable water supply from backsiphonage and backpressure in health hazard applications.
• Prevents reverse flow of fire protection substances like glycerin wetting agents, foam agents, stagnant water, and non-potable water.

Flood Sensor & Alerts

• Features a flood sensor with SentryPlus Alert® technology on the relief valve for detecting continuous discharge.
• When paired with an add-on sensor connection kit, the sensor activates to relay alerts for potential flooding events.
• Supports integration with BMS and cellular communication options.
• The Sensor Control Monitor enables integration with BAS via RS-485 Modbus or the Nexa® platform through Wi-Fi connectivity.

Key Features & Construction

• Stainless steel body provides long-term corrosion resistance and maximum strength.
• Body is half the weight of competitive designs, reducing installation and shipping costs.
• Short end-to-end dimensions facilitate easy retrofit.
• Bottom mounted relief valve reduces clearance requirements for installations against an outside wall.
• Torsion spring check valves provide maximum flow at low pressure drop.
• Thermoplastic and stainless steel check valves ensure trouble-free operation.
• No special tools required for servicing.
• Compact construction allows for smaller enclosures.
• Stainless steel relief valve with a balanced rolling diaphragm eliminates sliding seals and lowers maintenance costs.
• Detects underground leaks and unauthorized water use.
• Includes a CFM meter.
• UL Classified and FM Approved outside stem and yoke (OSY) resilient seated gate valves.

Important Safety Note: Use of the flood sensor does not replace the need to comply with all required instructions, codes, and regulations related to installation, operation, and maintenance of this product, including the need to provide proper drainage in the event of a discharge.