AMD-4030G-LM, 4 IN SS Double Check Detector Backflow Preventer Assembly, Less Meter, Deringer, OSY Shutoff Valves, Grooved End Connections, Dual-Action Checks

Item #: AMD-4030G-LM

Supplier #: D-4030G-LM

This 4 inch Ames Deringer(TM) 30G double check detector Type II backflow preventer assembly is designed to prevent non-health hazard pollutants from entering the potable water supply system caused by backflow due to backpressure and/or backsiphonage conditions. Deringer 30G features inline serviceable OS&Y gate valves, a stainless steel body, and Dual-Action(TM) checks for high performance at low-and high-flow rates. It may be installed under continuous pressure service to protect against both backpressure and backsiphonage. The Type II bypass is used to monitor unauthorized water usage, is primarily required on fire sprinkler systems, and comes without a meter. Maximum working pressure is 175psi (12 bar).

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