... the kinds of medium as water, steam, oil produce, nitric acid, acetic acid, oxide medium, carbamide, etc.Floating ball valve has all ... is manual, worm gear derive, pneumatic, electronic or hydraulic.Characteristic1,O-shaped floating type ball valves adopt all-diameter or crinkled ... pls refer to the parts of actuator andadjusting valve.1,O-shaped floating type ball valves adopt all-diameter or crinkled ...