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A case was introduced today for everyone to pay attention to the negative pressure in the pipeline when installing the smart electromagnetic flowmeter. What to do if there is a negative pressure. Many design institutes did not consider whether negative pressure could occur in the pipeline. They directly installed flowmeters in one place according to the design requirements. Generally, they were installed in a manner consistent with the installation drawings in the instruction manual of the electromagnetic flowmeter, and the straight pipelines in the front and rear. The distance, or the fact that there is not a full pipe in the pipeline, was not considered and the negative pressure of the pipeline was not considered.
We encountered some scenes where the pressure in the pipeline was not as great as the pressure in kilograms, but the flowmeter experienced a degumming leak. It was determined by the engineer that the negative pressure in the pipeline was likely to cause the suction to peel off the rubber inside the lining, causing the water in the pipeline to seep into the lining.
In general, we require that if there is a backwater in the pipeline when the pump is stopped inside the pipeline, you need to add a return valve or install an automatic exhaust hole. Or, more simply, it is a plug-in smart electromagnetic flowmeter. Only in this way can the normal use of the flowmeter be solved. Generally, we can consult with us when we install or design the pipeline. We will give you a better solution.
We encountered some scenes where the pressure in the pipeline was not as great as the pressure in kilograms, but the flowmeter experienced a degumming leak. It was determined by the engineer that the negative pressure in the pipeline was likely to cause the suction to peel off the rubber inside the lining, causing the water in the pipeline to seep into the lining.
In general, we require that if there is a backwater in the pipeline when the pump is stopped inside the pipeline, you need to add a return valve or install an automatic exhaust hole. Or, more simply, it is a plug-in smart electromagnetic flowmeter. Only in this way can the normal use of the flowmeter be solved. Generally, we can consult with us when we install or design the pipeline. We will give you a better solution.
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