This 4 inch Ames Fire & Waterworks C500N Reduced Pressure Detector Backflow Preventer Assembly is engineered to provide superior protection for drinking water supplies against contamination from dangerous cross-connections. It is ideal for health-hazard non-potable service applications such as irrigation, fire lines, or industrial processing systems. This model features a compact, modular N-pattern horizontal design with grooved gear-operated butterfly shutoff valves and a flood sensor.

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Key Features

• Provides protection from backpressure and backsiphonage contamination.
• Extremely compact design, making it 70% lighter than traditional models.
• Constructed with a 304 (Schedule 40) stainless steel housing and sleeve for durability.
• Features a patented link check for the lowest pressure loss and unmatched ease of serviceability.
• Includes grooved gear-operated butterfly shutoff valves with tamper switches for secure operation and monitoring.
• Equipped with a bottom-mounted cast stainless steel relief valve.
• A metered bypass is included to detect leakage or unauthorized water use from the fire sprinkler system, furnished with a cubic feet per minute meter.
• Integrated flood sensor with SentryPlus Alert® technology detects excessive water discharges from the relief valve.
• The flood sensor can relay a signal to trigger a multichannel alert (call, email, text) to notify personnel about potential flooding, requiring an add-on sensor connection kit for activation.