... of casting or forging; the ball is floating, the ball moves (floats) downstream to maintain close contact with downstream seat to form a reliable ... , API 6D,DIN,JIN,ASMEB16.34structure: split body ,3 pieces,floating and trunnion mountedConnection ends: flange (ASME/ANSI B16.5A, ASME B16.47 ... sea;soft seal :PTFE, PEEK, nylon, RPTFE big sizes flanged cast steel ball valve