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Why is the centrifugal pump not allowed to reverse? 2020-03-28


Because the impeller of the centrifugal pump is a set of sleeves, there are threaded fasteners on the shaft, and the direction of rotation is opposite to the direction of shaft rotation, so the more the pump is tightened, the tighter it becomes. If it is reversed, it is easy to pull out the shaft sleeve, causing the impeller to loosen and cause friction. In addition, the head is very low when it is reversed, and it cannot even make water.


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