Standard: API, JIS,DIN,BS,GB Size: NPS 2"- 160" Pressure: Class150 -1500 Material: WCB, WC1, WC5, WC6, WC9, WC12, CF3, CF8, CF3M, CF8M410, 304, 316, 304L, , 38CrMoAlA, 25Cr1MoV Design & Manufacture Std.: BS 5155, API 609, MSS SP-67, MSS SP-68 Face to Face Std.: BS 5155, API 609, MSS SP-67, MSS SP-68 End Connection Std.: ASME B16. 5, DIN2543-2545 Test Standard: ISO5208, BS 6755 Structure Type: Wafer, flanged Operated Way: Worm gear, pneumatic, etc.