Standard: API,JIS,DIN,BS,GB 1) Size: NPS 2"-42" 2) Pressure: Class 150 - 1, 500 3) Material: WCB, LCB, CF8, CF8M, CF3, CF3M, A105, LF2, F304, F316, F304L, And F316L 4) Design and manufacture Std.: API 608, API 6D, BS 5351, and ASME B16. 34 5) Face to face Std: API B16. 10, API 6D, DIN 3202, ASME B 16. 25, and DIN2543-2550 6) Design and manufacture Std.: API 608, API 6D, BS 5351, and ASME B16. 34 7) Test standard: ISO5208, API 6D, and BS 6755 8) Structure type: One-piece, two-piece, reduced bore, and full bore 9) Operated way: Lever, gear, pneumatic, and electric