8 inch Reduced Pressure Detector Backflow Preventer
Weight: 163.0 lb
Integral GPM Meter: Yes
End Connections: IPS Groove for Steel Pipe
Housing Material: 100% Stainless Steel
Working Pressure: 10-175 psi
Temperature Range: 33°F - 140°F
Flood Sensor: SentryPlus Alert® Technology
Certifications: AWWA C511-07, ANSI/NSF/CAN 61, UL 372 Lead Free, FM, ASSE 1047-2021
Description
The 8 inch AMES Deringer™ 50 Reduced Pressure Detector Backflow Preventer Assembly with a GPM meter is designed for fire sprinkler systems to prevent hazardous and non-health hazard contaminants from entering the potable water supply. It features 100% stainless steel housing, integral butterfly shutoff valves for a short lay length, and patented dual-action checks for reliable performance across all flow rates. This assembly includes a SentryPlus Alert® flood sensor to detect excessive relief valve discharges and operates within a 10-175 psi pressure range. It is AWWA C511-07, ANSI/NSF/CAN 61, and UL 372 Lead Free certified.
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Connections
The 8 inch Deringer™ 50 backflow preventer assembly is designed with IPS Groove ends for direct connection to steel pipe, compliant with AWWA C606. For installations requiring flanged connections, optional flange adapters are available, compliant with ANSI B16.1 Class 125.
The 8 inch AMES Deringer™ 50 Reduced Pressure Detector Backflow Preventer Assembly is designed to prevent both hazardous contaminants and non-health hazard pollutants from entering the potable water supply system due to backpressure and/or backsiphonage conditions. This Type II bypass assembly with an integrated GPM meter is primarily required on fire sprinkler systems to monitor unauthorized water usage.
Features
Features a flood sensor with SentryPlus Alert® technology to detect excessive water discharges from the relief valve. When activated with an add-on sensor connection kit, the flood sensor can send an alert to notify personnel about potential flooding.
Integral Eccentric-Seal™ butterfly shutoff valves for shorter lay length and lightweight construction.
Dual-action check module for low- and high-flow performance, with patented poppet action at low flow and swing action at high flow.
True-Seal™ checks for high performance at low- and high-flow rates.
Prewired supervisory switches and integrated tamper switches.
Tamper-resistant test cocks.
100% stainless steel housing.
Enhanced scrambler relief valve with no sliding seals and proportionate relief check for more reliable relief valve closure.
Lead-free bronze bypass components.
Stainless steel braided wire sensing line.
IPS groove ends for steel pipe connections.
The wetted surface of this product contains less than 0.25% of lead by weight.
What is the primary application of the 8 inch AMES Deringer™ 50 backflow preventer?
The primary application for this 8 inch Deringer™ 50 assembly is on fire sprinkler systems, where it monitors unauthorized water usage with its GPM meter and prevents contamination of the potable water supply.
What type of contaminants does this backflow preventer protect against?
This reduced pressure detector assembly protects against both hazardous contaminants and non-health hazard pollutants entering the potable water system due to backpressure and/or backsiphonage.
What kind of end connections does the Deringer™ 50 have?
The 8 inch Deringer™ 50 backflow preventer assembly comes with IPS Groove ends, designed for connection to steel pipe. Flange adapters are available separately for other connection needs.
Does this backflow preventer include a flood sensor?
Yes, it features a flood sensor with SentryPlus Alert® technology to detect excessive water discharges from the relief valve. An add-on sensor connection kit is required to enable alert notifications.
What is the maximum working pressure for this 8 inch Deringer™ 50 model?
The maximum working pressure for the 8 inch AMES Deringer™ 50 Reduced Pressure Detector Backflow Preventer Assembly is 175 psi. The minimum working pressure is 10 psi.
