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    INDUSTRY NEWS

    The difference between magnetic pump and canned motor pump

    Time:2021/9/18 7:53:19 Category:INDUSTRY NEWS Source: Click:

    From the comparison of magnetic pump and canned motor pump, it can be seen that magnetic pump and canned motor pump are similar in that they are all non-leakage pumps. The difference between the canned motor pump and the magnetic pump lies in the difference in structure, principle, scope of application, maintenance and so on. Magnetic pumps are called magnetic centrifugal pumps, and shielded pumps are called shielded pipeline centrifugal pumps, which belong to the category of centrifugal pumps.

    The difference between magnetic pump and canned motor pump

    Structure and manufacturing

    The difference: the structure of the magnetic pump is more complicated, and the manufacturing process is relatively simple; the structure of the canned motor pump is simpler than the magnetic pump, but the manufacturing process is more complicated than that of the magnetic pump.

    Transmission principle

    The same: use the space magnetic field to transmit torque or centrifugal force.

    Differences: Magnetic pumps work with permanent magnetic fields provided by permanent magnets; shielded pipeline pumps work with alternating magnetic fields formed by alternating currents.

    No leakage principle

    Similarities: Both magnetic drive pumps and canned motor pumps use static seals to work.

    The difference: the magnetic centrifugal pump uses an isolating sleeve to form a leak-free shielded and sealed cavity; the shielded pump uses a shielded sleeve between the motor rotor and the stator to form a shielded sealed cavity.

    Scope of application

    Similarities: The fluids suitable for transportation are roughly the same, and they are all suitable for the transportation of flammable, explosive, toxic and harmful or valuable liquids; differences: most of the hydraulic models of canned motor pumps are designed by domestic and foreign hydraulic research and development, and the performance parameters are the same as those of domestic petrochemicals. There is a certain gap in the industry.

    Repair and maintenance

    Differences: The maintenance of magnetic pumps is relatively simple, and users can operate them by themselves; canned motor pumps are driven by motors. The maintenance is more complicated than magnetic pumps, and the maintenance time is longer, which has a certain impact on normal production.

    Knowledge contributor: Shanghai Lingnai Special Magnetic Pump Co., Ltd.

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