1. Alignment requirements are high;
2. The inner magnetic cylinder and protective sleeve are easy to be damaged when the raw materials of the channel are not tidy;
3. The material requirements for the protective sleeve of the magnetic pump are relatively high;
4. The magnetic pump is not allowed to rotate without materials;
5. The speed of magnetic pump is lower than that of general centrifugal water pump;
6. The price depends on the high price;
7. Application scope limitation: the application working temperature, motor temperature, high pressure and material hardness and particle regulations of the magnetic pump in the office environment of the pump;
8. Long-term application, even if the mechanical parts are not damaged, will still be unable to be used again due to the weakening of the magnetic force.
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