Crane brand cast iron flange check valve assembly. Part number: 159XU. Class 300. Due to the way they are shipped and stored, small paint chips in various location of the valve is expected. Cast Steel • Bolted Cap • Flanged Swing check valves prevent reversal of flow through the pipeline Can be installed in horizontal or vertical, upward flow piping Offer low resistance to flow and are particularly suited to low velocity service Seat ring is seal welded to eliminate leak paths Pressure Temperature Rating Carbon Steel ASTM A216 Grade WCB 740 psi -20F to 100F Description Material Body A216 WCB Bonnet A216 WCB Seat Ring Hardfaced Disc 13 CR Overlay Hinge WCB