What is the difference between ball valves and butterfly valves?

Different referents
1, Ball valve: The opening and closing part (ball) is driven by the valve stem and rotates around the axis of the ball valve.

2, butterfly valve: also known as the flap valve, is a simple structure of the control valve, can be used for the low pressure pipeline medium switch control butterfly valve is refers to the closing piece (disc or butterfly plate) for the disc, rotating around the valve shaft to open and close a valve.

Different characteristics
1, ball valve: fluid resistance is small, its resistance coefficient and the same length of the pipe section is equal.Simple structure, small size and light weight.Compact and reliable, and the ball valve sealing material is widely used in plastic, good sealing, in the vacuum system has also been widely used.Easy to operate, fast open and close, from full open to full close only rotation 90°, convenient for remote control.

2, Butterfly valve: Butterfly valve is characterized by simple structure, small volume, light weight, low material consumption, small installation size, quick switch, 90° reciprocating rotation, small driving torque, etc. It is used to cut off, turn on and adjust the medium in pipeline, with good fluid control characteristics and sealing performance.

Different USES

1, ball valve: can be used for fluid regulation and control, which hard seal V-type ball valve v-type ball core and hardfaced metal valve seat has a strong shear force, especially suitable for containing fiber, small solid particles and other media.The multi-pass ball valve in the pipeline can not only flexibly control the confluence of media, shunt, and flow direction switch, but also close any channel and make the other two channels connected.
2, butterfly valve: valve can be used to control the flow of air, water, steam, a variety of corrosive media, mud, oil, liquid metal and radioactive media and other types of fluid.It is mainly used for cutting and throttling in pipelines.Butterfly valve