Self-priming magnetic pump failure reason and solution

2019 - 11 - 01

self-priming magnetic water pump failure reason and solution: 1. Don't pump suction, pressure gauge throbbing. Reason: perfusion of water diversion is not enough, there is air pump inner product, import pipeline and pipe leakage. Solution: irrigation water diversion, check the line, eliminate leakage phenomenon. 2. Vacuum gauge indicates a high vacuum pump still not bibulous. Reason: the bottom valve didn't open or severe congestion, the suction resistance is big, on the suction height is too high. Solution: check the bottom valve valve flexibility, get rid of a blockage, try to make the suction line is simple, lower suction height. 3. Export pressure gauge indicates pressure, little or no water out of the water pump. Reason: outlet pipe resistance is big, turn right, the impeller jams, speed is not enough. Solution: reduce the pipe resistance, check steering motor, remove the impeller clogs, increase the speed. 4. Flow is lower than the design flow. Reason: impeller block, wear ring gap is too big, speed is not enough. Solution: remove blockages, replace the sealing ring, increase the speed to the specified value on the nameplate. 5. power consumption is too large. Reason: too tightly on the packing, packing chamber fever, impeller wear, self-priming pump magnetic pump flow is too large, more than ratings. Solution: relax the packing gland, replacement impeller, turning down the gate valve, reduce the traffic. 6. Abnormal voice inside pump, the pump is not water. Reason: import pipeline resistance is too large, suction height is too big, there is air into the suction pipe, conveying fluid temperature is too high. Solution: check whether there is any jam on imported line, clean up the bottom valve, reduce the liquid temperature or lower suction height.

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