Watts 957RPDA DOSY CFM FS 4 Part of the 957RPDA Series R304 Detectable Warning Surfaces Specifications ArmorTek Technology No Backflow Specifications ArmorTek Technology No Backflow Preventer Type Double Check Valve Assembly Body Finish Cast Copper Silicon Alloy Body Material Lead Free Copper Silicon Alloy Body Pattern Inline Brand Watts Buy American Act Compliant YES Bypass No Bypass Size Does Not Apply To Product Cap And Tether No Disc Material Rubber EAN 098268592658 Elbow Fitting No Hazard Protection Level Non Health Hazard Hot And Harsh Water No Hydrant Connection No Inlet Connection Size 1 1 2 IN Inlet Connection Type Female Threaded Inlet Shutoff Valve Type Quarter Turn Ball Valve Inlet Thread Type NPT Lead Free YES Maximum Temperature Fahrenheit 180 Maximum Working Pressure BAR 12 Specifications Blowdown Outlet Connection Female Threaded Blowdown Outlet Size 1 1 2 IN Body Material Cast Iron Body Pattern Wye Brand Watts Class Rating 126 EAN 098268833317 Epoxy Coating Type None Gasket Material Garlock Inlet Connection Size 3 IN Inlet Connection Size Metric 80 MM Inlet Connection Type Female Threaded Inlet Thread Type NPT Lead Free YES Outlet Connection Size 3 IN Outlet Connection Type Female Threaded Outlet Thread Type NPT Part Number 0220342 Plug Material Cast Iron Retainer Cover Material Cast Iron Retainer Cover Type Tapped with Closure Plug Screen Material Stainless Steel Screen Size 100 MESH Series 77S Strainer Type Wye WOG Rating 400 PSI Specification Sheet 77S M1 Alert features available with add on sensor connection kit This backflow assembly contains a flood sensor with SentryPlus Alert® technology to detect excessive water discharges from the relief valve