AMD-6020X, 6 IN SS Double Check Valve Backflow Preventer Assy, Low Head Loss, Deringer, Integral Butterfly Valves, Grooved Ends, Dual-Action Check Modules

This 6 inch Ames Deringer(TM) 20X Low Head Loss double check valve 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 20X features extra large body and checks for lower head loss, integral Eccentric-Seal(TM) butterfly shutoff valves for a short lay length, integrated tamper switches, 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. Maximum working pressure is 175psi (12 bar).