Overcurrent issue with vacuum pumps in Zibo, Shandong
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Our company has several vacuum pumps from Zibo, Shandong; 4 of them are of the 2BE-62 series and are used for evacuating gas in PSA processes. At the beginning of operation, they were able to achieve a vacuum level of -0.05. After 1.5 years of use, the maximum vacuum level they can now achieve is only -0.03, and there is also an issue of excessive current flow. We would appreciate it if experts could analyze this situation and provide some guidance
It needs major maintenance; check whether the components need to be replaced and whether the bearings are damaged. For reference.
It needs a major overhaul; the gas valves and clearances should be checked
System leakage affects the vacuum level； Overload can cause overcurrent; remove one of the pumps and check whether there are any abnormalities in the pump itself (such as the rotor, bearings, etc.).
This post was last edited by lein on 2019-11-11 at 21:31. Based on what you’ve described, the vacuum level at that pump factory is not low enough to meet the requirements. It is necessary to check the curves from the pump factory. It is because the vacuum level is not sufficient, which causes the pump to operate under overload; over time this reduces the lifespan of the pump’s bearings.
Internal component corrosion leads to insufficient pumping capacity