Watts 9DM3 1 2 Part of the 9D Series ZA100F 6NH The pressure relief is set The pressure relief is set at 150 psi (10 This is a major advantage when comparing to other root barrier solutions which rely on panels which can be prone to root intrusion where the panels connect This valve is designed for continuous pressure non health hazard applications in smaller supply lines Specifications Backflow Preventer Type Dual Check with Atmospheric Vent Body Finish Brass Body Material Brass Body Pattern Inline Brand Watts Buy American Act Compliant YES Bypass No Cap And Tether No Disc Material Rubber EAN 098268221794 Elbow Fitting No GDS Status Registered Hazard Protection Level Non Health Hazard Hot And Harsh Water No Hydrant Connection No Inlet Connection Size 1 2 IN Inlet Connection Size Metric 15 MM Inlet Connection Type Union Female Threaded Inlet Shutoff Valve Type No Shutoff Valve Inlet Thread Type NPT Lead Free NO Maximum Temperature Fahrenheit 250 Maximum Working Pressure BAR 12