Absorption pump
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The first and second suction pumps in our factory often experience severe vibration and a drop in current. Just restart it. I don’t know why?
Check whether there are any changes in the acid temperature at the top of the tower (which is decreasing slowly) and at the bottom of the tower (which is increasing slowly), as well as whether there is an increase in current when the valves are opened. If so, it’s possible that the pump body has been corroded and punctured. This phenomenon has occurred in our factory; it’s provided for reference only. Please consider it!
If the current level stabilizes after dropping, it’s possible that something dirty has adhered to the components; once restarted, normal operation is restored, but the dirt may adhere again and cause fluctuations in the current. If the current continues to drop slowly, it’s possible that the casing has corroded and developed holes
I’ve encountered this too: the operating current of the JHB450-30 dropped from 180A to 130A. After checking, no perforations were found, and it returned to normal after being restarted