A few days ago, I received a call from a customer in Guangzhou. He mentioned that he had a stainless steel gear pump in his factory, but one of them was experiencing issues. The pump would overheat after a short period of operation, and the gears would lock up, causing it to stop working. He had to wait for the temperature to drop before checking again. After searching online for solutions, he reached out to our technical team. We guided him through the issue, which turned out to be related to the shaft head. He learned about the problem, reassembled the pump according to our instructions, and successfully resolved the issue.
To provide more detailed information, here are some common reasons why a stainless steel gear pump might lock up:
First, if the gears of the stainless steel gear pump are not properly nitrided or quenched, they may be too soft. This can lead to sticking during operation, resulting in the pump locking up. Second, if the operating temperature is too high, it can cause the internal components to expand or deform, leading to mechanical failure. Third, during the assembly process, if burrs or debris are not thoroughly cleaned, especially with materials like 0Cr18Ni9 (a type of stainless steel that is known to be sticky), it can cause localized friction and lead to gear locking. Lastly, if the new piping installed with the pump isn't properly cleaned, small amounts of welding slag or foreign particles can enter the pump, causing it to jam or fail to operate.
It's important to ensure proper maintenance, correct installation, and quality materials to avoid such issues. By following these steps, users can significantly reduce the risk of pump failure and extend the equipment's lifespan.
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