Specifications: 1) Production enforce standard: Desing And Manutacture: ANSI B16. 34 BS1873 Face to face/End to end: ANSI B16. 10 Flange dimensions: ANSI B16. 5 Butt welding dimension: ANSI B16. 25 Pressure temperature lating: ANSI B16. 34 Inspection and test: API 598 2)Major parameter NPS: 2"-24" Pressure: 150Lb--900Lb Body Cover Disc: WCB WC6 WC9 LCB CF8 CF3 CF3M CF8M Type of operation: Manual, conical gear actuator, electric actuator