Type: weld neck flange Materials: ASTM A105 Standards: API, ANSI, BS, JIS, UNI, MSS and SP Pressure: ANSI class 150 to 2,500 Size: 1/2 to 56 inches (DN15 to DN1,400mm) Used in: Oil Field, Offshore, Water System, Shipbuilding, Natural Gas, Electric Power, Pipe Projects etc.