,F304,F316 ball material : A105, LF2,304,316,316Lstem material : 420, LF2,F304,F316Seat material : PTEF,PEEK,PPL2, BALL VALVE STRUCTUREFloating ball and trunnion mounted ball with 2-piece or 3-piece body3, CONNECTION ENDDouble flanged end, screwed end, wafer end, butt welded end4, VALVE STANDARDDesign : API 608, API6D,ASME B16.34,?DIN3357/1 Length of face to face : ASME B 16.10, DIN 3202 F1 or F7Flange end : ASME B16.5, EN1092-1Thread end: ASME B16.11Test : API 598, BS EN 12266, ISO 52085, VALV