The design of fluoroplastic magnetic pumps not only has the advantages of ordinary magnetic pumps such as compact structure, attractive appearance, small size, low noise, and reliable operation, but also all of their flow components are made of "Plastic King" (fluoroplastic), which currently has the best corrosion resistance performance. The isolation sleeve is made of materials with high mechanical properties, eliminating the magnetic eddy current phenomenon existing in ordinary magnetic pumps. Therefore, fluoroplastic magnetic pumps can convey corrosive media such as acids, alkalis, oxidants, etc. of any concentration (strength) without damage.

Fluoroplastic magnetic pumps adopt a rear-pull structure, which allows a single person to easily perform internal inspections and part replacements without disassembling the pipeline, greatly facilitating daily maintenance and repair work. Proper maintenance is more conducive to extending the service life of the magnetic pump.

Details of Reasons Why Fluoroplastic Magnetic Pumps Are Prone to Damage:

1. Pumping Liquids with High Specific Gravity

a. When the specific gravity is too high, the torque of the fluoroplastic magnetic pump is poor, and the power transmission of the ordinary external magnetic coupling is limited.

Solution: Select a suitable fluoroplastic centrifugal pump, which has high efficiency and cost performance, and is equipped with a water-cooled mechanical seal. If you still want to use a fluoroplastic magnetic pump, you need to configure a high-strength magnetic group rotor assembly at a higher price. Or reduce the impeller diameter to reduce the torque.

b. The reason for the pump shaft breakage of the fluoroplastic magnetic pump: when the outlet head is high and the medium specific gravity is large, there is no check valve in the outlet pipeline. When the machine shuts down, the liquid falls at a high speed, and the water hammer effect damages the impeller and the pump shaft, causing the impeller to be displaced. When restarting, the impeller rubs at high speed and melts and adheres.

Solution: Install a check valve more than 1 m above the outlet pipeline to prevent the water hammer effect from damaging the impeller and the pump shaft.

c. When pumping liquids with a relatively large specific gravity and high speed, the torque is insufficient, and the pump shaft of the fluoroplastic magnetic pump breaks.

Solution: For pumps above 15 kW, a control cabinet can be matched. Before starting, start softly. Normally, it starts from 2900 rpm in 5 seconds and is controlled to reach 2900 rpm in 15 seconds, gradually increasing the power to prevent the pressure generated by high-speed rotation from twisting off the fluoroplastic magnetic pump shaft. Or reduce the impeller diameter to reduce the torque.

2. Idling of Fluoroplastic Magnetic Pumps

When the fluoroplastic magnetic pump is started with the motor running and there is no medium liquid to cool the internal environment, it generates high temperature during long-term rotation, melting the fluoroplastic lining, and the impeller is damaged and adhered.

Fluoroplastic magnetic pumps are compact in structure, attractive in appearance, small in size, low in noise, reliable in operation, and convenient for use and maintenance. The products are widely used in chemical, acid-making, alkali-making, smelting, rare earth, dyeing, medicine, papermaking, electroplating, pickling, radio, scientific research institutions, national defense industry and other units to pump acids, alkali solutions, oils, rare and precious liquids, toxic liquids, volatile liquids, especially for the pumping of liquids that are prone to leakage, flammable, and explosive. It is more ideal to select a matching explosion-proof motor. Applicable temperature: -20°C to 120°C.