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Structural characteristics of flange ball valveRelease Date: April 29, 2017
The ball valve and the gate valve are the same type of valve. The difference is that the closing part is a ball. Ball valve is mainly used in the pipeline to cut off, distribute and change the flow direction of the medium. Flange ball valve standard GB / T21465-2008 "valve term" is defined as: the valve is driven by the valve stem, and rotates around the valve stem axis.
1.Friction without opening and closing
This function completely solves the problem that the traditional valve affects the seal due to the friction between the sealing surfaces.
2. Top-loading structure
The valve installed on the pipeline can be directly checked and repaired online, which can effectively reduce the equipment shutdown and reduce costs.
3.Single valve seat design
Eliminate the problem that the medium in the cavity of the valve affects the safety of use due to abnormal pressure rise.
4.Low torque design
The valve stem with special structure design can be easily opened and closed with only a small handwheel valve.
5.Self-cleaning structure of sealing surface
When the sphere is tilted away from the valve seat, the fluid in the pipeline passes through the sealing surface of the sphere uniformly at 360 °, which not only eliminates the local erosion of the valve seat by the high-speed fluid, but also removes the accumulation on the sealing surface to achieve the purpose of self-cleaning. .