Several points that cause easy damage to the sealing surface of high pressure ball valves（二）
Third, the high pressure ball valve media erosion, it is the result of media activity on the sealing surface wear, flushing, vaporization. Media at a certain speed, the media in the floating fine particles against the sealing surface, so that it causes local damage, high-speed activity of the media directly wash the sealing surface, so that it causes local damage, media mixing and local vaporization, gas angry bubble blast impact sealing surface surface, causing local damage. Media erosion coupled with chemical erosion alternating effects, will strongly leach sealing surface.
Fourth, high-pressure ball valve electrochemical erosion, the sealing surface in contact with each other, the sealing surface and the enclosing body and valve body contact and the media concentration difference, oxygen concentration difference, etc., will produce a potential difference, electrochemical erosion, resulting in the anode side of the sealing surface is eroded.
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