Troubleshooting of fluoroplastic magnetic pump

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Troubleshooting of Fluoroplastic Magnetic Pumps 1. Shaft Breakage: The pump shaft of fluoroplastic magnetic pumps is made of 99% alumina ceramic. The main reason for shaft breakage is twisting of the shaft due to dry friction of the bearings when the pump operates without liquid. Upon disassembling the pump for inspection, it can be seen that the bearings are severely worn. The main way to prevent the pump from breaking is to avoid running it without any load. 2. Bearing damage: The bearings of fluoroplastic magnetic pumps are made of high-density carbon; a lack of water in the pump or the presence of impurities inside the pump can lead to damage to these bearings. If the coaxiality requirement between the inner and outer magnetic rotors of a cylindrical coupling is not ensured, it will also directly affect the lifespan of the bearings. 3. Insufficient head. The reasons for this fault include: air in the medium being transported, damaged impeller, insufficient rotational speed, excessive specific gravity of the liquid being transported, and high flow rate. 4. Insufficient flow. The main reasons for insufficient flow include damaged impellers, insufficient rotational speed, excessive head, and blockages caused by debris inside the pipes. 5. The fluoroplastic magnetic pump fails to deliver liquid. This is one of the most common faults that occur in fluoroplastic magnetic pumps, and there are various reasons for it. First, check whether there are any air leaks in the pump’s suction line, ensure that all air from the suction line has been removed, verify that the amount of liquid filled in the fluoroplastic magnetic pump is sufficient, and check for any obstructions in the suction line. It is also necessary to determine whether the pump is running in reverse (especially after replacing the motor or after repairing the power supply circuit). Additionally, pay attention to whether the pump’s suction height is too high. If the problem remains unresolved after the above checks, the pump can be disassembled to check whether the pump shaft is broken; it is also necessary to verify that the rotating and stationary rings of the pump are intact, as well as whether the entire rotor can move slightly in the axial direction. If axial movement is difficult, check whether the carbon bearing is too tightly fitted to the pump shaft.