The butterfly plate of the butterfly valve is installed in the diameter direction of the pipeline, and the butterfly plate is driven by the valve rod. In the cylindrical channel of the butterfly valve body, the disc shaped butterfly plate rotates around the axis with a rotation angle of 0 ° - 90 °. When it rotates to 90 °, the valve is fully open. The flow of medium can be controlled by changing the deflection angle of the butterfly plate.

What is the pulling off phenomenon of bellows compensator?
In practical work and application, bellows compensators sometimes appear to pull off, which may cause damage to bellows contraction joints in small cases and threaten the safety of the whole pipeline in large cases. This damage level has a lot to do with the devices that fix the supports and pipe supports in the pipeline.
The following explains why the bellows shrink joint is pulled off and how to avoid pulling off.