Check Valve Check Valve Prevents backflow into the cylinder.Required for each hose attachment to the discharge manifold. KEY FEATURES • Extra large 49 mm orifice for high flow and rapid discharge Product code B04600009 B04600010 B04600008 Inlet connection Rc 2” Rc 1 ½” G ¾” Outlet connection R 2½” R2” R1” Working pressure 53 bar 53 bar < 360 bar Material Brass Brass Brass Hex 80 mm 65 mm 42 mm