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The solution to the blockage of the regulating valve

Categories:Industry News
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Time of issue:2020-07-31
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(Summary description)
In the automatic control of modern factories, regulating valves play a very important role. However, the blocking problem is also a frequent occurrence of the regulating valve. It often occurs in the new commissioning system and the initial stage of the overhaul and commissioning. Due to the blockage of the throttling port and the guiding part caused by welding slag and rust in the pipeline, the medium may not flow smoothly, or the regulating valve may be blocked. During maintenance, the packing is too tight, resulting in increased friction, resulting in the phenomenon that the small signal does not act and the large signal acts too much.
The solution to the blocking of the regulating valve: the auxiliary line or the regulating valve can be opened and closed quickly, so that the dirt can be washed away by the medium from the auxiliary line or the regulating valve. Another method is to clamp the valve stem with a pipe wrench, and under the condition of external signal pressure, rotate the valve stem forward and reverse forcefully, so that the valve core flashes over the card. If not, increase the air source pressure and increase the driving power to move up and down several times to solve the problem. If it still does not work, it needs to be dismantled.

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The solution to the blockage of the regulating valve

Categories:Industry News
Author:
Origin:
Time of issue:2020-07-31
Views:0

Information

In the automatic control of modern factories, regulating valves play a very important role. However, the blocking problem is also a frequent occurrence of the regulating valve. It often occurs in the new commissioning system and the initial stage of the overhaul and commissioning. Due to the blockage of the throttling port and the guiding part caused by welding slag and rust in the pipeline, the medium may not flow smoothly, or the regulating valve may be blocked. During maintenance, the packing is too tight, resulting in increased friction, resulting in the phenomenon that the small signal does not act and the large signal acts too much.
The solution to the blocking of the regulating valve: the auxiliary line or the regulating valve can be opened and closed quickly, so that the dirt can be washed away by the medium from the auxiliary line or the regulating valve. Another method is to clamp the valve stem with a pipe wrench, and under the condition of external signal pressure, rotate the valve stem forward and reverse forcefully, so that the valve core flashes over the card. If not, increase the air source pressure and increase the driving power to move up and down several times to solve the problem. If it still does not work, it needs to be dismantled.

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Next: The competitiveness of domestic-funded enterprises in the air compressor industry continues to strengthen

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