Ball and butterfly valves are commonly used. Some situations are universal, and some situations are only one of them. The difference between the two mainly lies in the structure and switching principle.
Butterfly valve relative to the ball valve, the tightness is slightly worse, but the large diameter valve, than the ball valve has an advantage; When adjusting the flow, the butterfly valve adjustment range is not large, and the V-type ball valve adjustment, accurate adjustment. In addition, ball valves have advantages over butterfly valves in high pressure pipelines.
