What is the difference between ball valve butterfly valve?

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

2. Butterfly valve: also known as flap valve, it is a kind of regulating valve with simple structure. Butterfly valve that can be used for on-off control of low-pressure pipeline medium means that the closing member (disc  butterfly plate) is a disc, which rotates around the valve shaft to achieve A valve that opens  closes.

Second, the characteristics are different

1. Ball valve: The fluid resistance is small,  its resistance coefficient is equal to the pipe section of the same length. Simple structure, small size  light weight. It is tight  reliable,  the sealing surface material of the ball valve is widely used in plastic, which has good sealing performance,  has also been widely used in vacuum systems. Easy to operate, quick to open  close, only need to rotate 90°  fully open to fully closed, which is convenient for long-distance control.

2. Butterfly valve: Butterfly valve has the characteristics of simple structure, small size, light weight, low material consumption, small installation size, rapid switching, 90° reciprocating rotation, small driving torque, etc. It is used for cutting, connecting,  adjusting pipelines. media with good fluid control properties  shut-off sealing.

3. Different uses

1. Ball valve: It can be used for fluid regulation  control. Among them, the hard-sealed V-shaped ball valve has a strong shear force between the V-shaped ball core  the metal valve seat of hard alloy surfacing, which is especially suitable for fiber-containing, tiny medium for solid particles, etc. The multi-port ball valve on the pipeline can  only flexibly control the confluence, diversion,  switching of the flow direction of the medium, but also can close any channel  connect the other two channels.

2. Butterfly valve: The valve can be used to control the flow of various types of fluids such as air, water, steam, various corrosive media, mud, oil, liquid metal  radioactive media. It mainly plays the role of cutting  throttling on the pipeline. The butterfly valve opening  closing part is a disc-shaped butterfly plate, which rotates around its own axis in the valve body to achieve the purpose of opening  closing  adjustment.