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4″ Deringer 20 Double Check Valve Assembly (DC)

In stock (can be backordered)


Ames - Fire and Waterworks - Backflow Prevention Products logoThe 4″ Ames Deringer 20 Double Check Valve Assembly (DC) is designed to prevent non-health hazard pollutants from entering the potable water supply system caused by backpressure and/or backsiphonage conditions. Deringer 20 features integral Eccentric-Seal butterfly shutoff valves for a short lay length, integrated tamper switches, and Dual-Action 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).

Part of the Deringer 20/20G Series

Lead Free: YES

Model# D-4020

UPC#  737733033028

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