Fluoroplastic alloy magnetic pump application of modern principles of magnetism, the use of permanent magnets to achieve non-contact indirect transmission of a chemical process pump. When the motor drives the outer rotor (ie outer magnet) assembly to rotate, the magnetic field lines move the inner rotor (ie the inner magnet) assembly and the impeller synchronously through the action of the magnetic field, and the medium is completely enclosed in the stationary isolation sleeve , So as to achieve the purpose of non-leaking pumping media and completely solve the shaft seal leakage of the mechanical transmission pump. The utility model is a sealed, leak-proof and non-polluting new industrial pump, which has the advantages of safety, high efficiency and energy saving. Magnetic pump for conveying corrosive, toxic, flammable, explosive, expensive or easy to vaporize liquids. In addition, the medium licensing magnetic pump is also suitable for conveying high temperature, low temperature fluid and liquid under vacuum. Due to its completely leak-free advantages, it has successfully solved the problems of running, running, dripping and leaking in fluid transportation and has become an irreplaceable product in environmental engineering. It is suitable for chemical, acid, alkali, smelting, rare earth, Pesticides, dyes, pharmaceuticals, paper making, electroplating, electrolysis, pickling, radio, foil, research institutes, defense industry and other industries. Compared with the traditional seal pump in a licensing magnetic pump with less maintenance and repair workload, without external lubrication, no leakage, vibration, noise and other advantages. However, due to its own characteristics in many ways it is different from the traditional centrifugal pump, so in the process, installation, operation and so take some measures and ways to ensure its reliable and smooth operation.