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Why does all welded ball valve leak?

Release date: December 20, 2018

Why does all welded ball valve leak? Generally, in the working process of all welded ball valve, there will be some unstable factors, such as temperature, pressure, sealing medium, etc. the common failure form of all welded ball valve is sealing failure, which is mainly due to some special materials in the sealing structure. These materials have different characteristics, which will expand and contract according to temperature or humidity. All of these are one of the reasons for sealing failure of all welded ball valve.

 All welded ball valve

In general all welded ball valve, the ball and valve seat have interference fit, there will be indirect interference in the process of movement. And with the pressure of some media, the non-linear behavior in the pipeline is likely to damage the sealing performance of the valve. And the medium transfer will squeeze the valve seat of all welded ball valve to a certain extent, which will make the valve seat deform for a long time. This phenomenon is simply that the valve seat of all welded ball valve has displacement relative to the valve body, which is also one of the basic reasons for sealing failure of all welded ball valve.

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