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Pressure gauge pointer bending phenomenon
When the pressure gauge used for a period of time, but when the pressure gauge is unstable, or the gauge removed for repair, we will find that sometimes straight sword pointer has become a scimitar-shaped pointer, if you look closely, in "knife" at will leave marks or a small bump sizes cratering, obviously the pointer is bent.
Pressure gauge pressure gauge pointer is bent, one is relatively stop nail plate, "knife" bent down, this situation is due to the pressure gauge at work, relief too far too fast, so that the pointer violently and repeatedly hit the disk nail only cause. This position is generally the case side, pointer and nail stopper plate under contact pressure gauge pointer, you can see the signs of being hit, hit bad times, this site will leave shades of gap.
There is only a relative gauge plate nail "knife" bent upward. This is due to the use of a pressure gauge, overpressure is too large, too fast in a clockwise direction so that the pressure gauge pointer hit the nail plate stopper is bent. The same will leave a gap in the side of the gauge pointer.
Pressure gauge pointer aluminum alloy sheet material is generally, if the pressure gauge needle is too thin material, the material is too soft, the pressure gauge is easy to be bent of reason.
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