There is information on electromagnetic flowmeters
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In actual production, electromagnetic flowmeters have their pipe interiors lined with PTFE material, giving them a very smooth interior surface. However, over time, they are prone to damage caused by corrosion and friction. I would like to ask: How do you handle such issues when they occur in companies? Should it be scrapped directly or by other means? If the crack is small and only affects fluctuations in flow rate, how should it be handled? What should be done if there are uneven surfaces? I hope everyone will discuss this and share their insights!
Buy a new one; you can also re-line it with fluoropolymer
In this case, the only solution is to return the device to the factory for re-lining; polytetrafluoroethylene lining is currently the best lining option for electromagnetic flowmeters
If the selection is correct, actually such failure phenomena as mentioned by the original poster will not occur. . . . . .
Minor damage can be fixed with AB glue
Our company previously used Rosemount electromagnetic flowmeters, and due to the operating conditions, the PTFE lining would often bulge, tear, or even come off. Bulging can lead to lower or inconsistent measurement values; there’s no need to mention other situations. In normal cases, if the material bulges, the only option is to replace it, as it cannot be repaired at the factory or the repair costs would be too high. I assume you’re facing the same issue with material selection; it is recommended to change the lining material – for example, PFA, which offers better heat and erosion resistance than PTFE – or try using a stainless steel lining protector.
Could you please provide information on the fluid medium, its flow rate, temperature, and other operating conditions? This will allow us to analyze the cause of the problem first, and then determine how to resolve it.
What does this have to do with those parameters? ! Obviously, the lining doesn’t have sufficient pressure resistance during manufacturing
The original poster mentioned corrosion and wear; do you think it’s related to that hair?