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The pressure relief is set at 35 psi (241 kPa) with corresponding high pressure ratings up to 1
giving excellent hydraulic capacity for water management
The ductile iron drain cover has an open surface area of 227
model BF-04-121-15-M2
Febco - LF856DCDA-DOSY-CFM 8 - Part of the LF856 Series ZA100F-6NH The pressure relief is setThis 8 inch lead free MasterSeries double check detector backflow preventer assembly prevents the backflow of pollutants due to backsiphonage and or backpressure that are objectionable but not toxic, from entering into the potable water supply. It is ideal for protection of non health hazard cross connections or for containment at the service line entrance. It is used primarily on fire sprinkler and standpipe systems requiring detection of