3″ Deringer 30 GPM Double Check Detector Assembly (DCDA-ll)
The 3″ Deringer 30 GPM Double Check Detector Assembly (DCDA-II) prevents non-health hazard pollutants from entering a potable water supply system when backpressure and/or backsiphonage conditions occur. Used primarily on fire sprinkler systems when monitoring of unauthorized water use is required. Deringer 30 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. The Type II bypass monitors unauthorized water usage, is primarily required on fire sprinkler systems, and comes with a GPM meter. Maximum working pressure is 175psi (12 bar).
Part of the Deringer 30/30G Series