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Proper installation and troubleshooting of leak-free chemical magnetic pumps. Thanks to their fully sealed design, leak-free operation, and corrosion resistance, leak-free magnetic pumps are widely used in industries such as petroleum, chemicals, pharmaceuticals, electroplating, environmental protection, and water treatment for pumping flammable, explosive, toxic, and valuable liquids. They represent the ideal choice for creating leak-free and pollution-free industrial facilities. The following points should be taken into consideration during the installation of leak-free magnetic pumps: 1. Place the unit on its foundation, and insert wedge shims between the base plate and the foundation; by adjusting these shims, align the pump horizontally. After adjusting, tighten the anchor bolts. 2. Before installation, the pump and motor should be inspected to ensure that all parts are in good condition, and there should be no debris inside the magnetic pump. 3. Construct the concrete foundation according to the basic dimensions, and embed the anchor bolts at the same time. 4. The suction and discharge pipes of the magnetic pump should be supported; the magnetic pump itself cannot be used as a support. The diameter of the inlet and outlet pipes should be consistent with that of the pump’s inlet and outlet. 5. Once installation is complete, manually rotate the magnetic pump coupling to check for any signs of rubbing; if it rotates smoothly and evenly, the installation is finished. 6. Magnetic pumps must not be used to pump media containing particles or substances that tend to crystallize. They must not operate continuously with the discharge outlet closed; a minimum flow rate must be maintained. 7. To prevent debris from entering the magnetic pump, a filter should be installed at the inlet, with a filtering area that is 3 to 4 times larger than the cross-sectional area of the pipeline. 8. When the viscosity of the medium is too high, both the performance and power of the magnetic pump will be affected; please follow the instructions in the manual for details. 9. It is necessary to ensure that the installation height of the magnetic pump meets the pump’s net positive suction head, taking into account pipeline losses and the temperature of the medium. Solutions to problems with leak-free magnetic pumps: 1. Broken shaft of the leak-free magnetic pump: The main reason for a broken pump shaft is that the shaft gets twisted as a result of the pump running without liquid, causing the bearings to grind against each other. When the pump is disassembled 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. II. Damage to the bearings of leak-free magnetic pumps: A lack of water flow in the pump or the presence of impurities inside the pump can cause damage to the 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. III. The leak-free magnetic pump fails to deliver liquid: The inability of a magnetic pump to deliver liquid is one of the most common faults it can experience, and there are various reasons for this. First, check whether there are any air leaks in the pump’s suction line, ensure that any air in the suction line has been removed, verify that the amount of liquid filled in the 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 in good condition, as well as whether the entire rotor can move slightly axially. If axial movement is difficult, check whether the carbon bearing is too tightly fitted to the pump shaft. IV. Insufficient head: The reasons for this fault include air in the medium being transported, damaged impellers, insufficient rotation speed, too high specific gravity of the liquid being transported, and excessive flow rate. V. Insufficient flow: The main reasons for insufficient flow include damaged impellers, insufficient rotational speed, excessive head, and blockages caused by debris inside the pipes. It is worth noting that the magnetic pump has been repaired several times with no problems found; attention should be paid to whether the magnetic coupling is working properly. Bearings, internal magnetic rotors, and spacers all generate heat during operation, which raises the working temperature. This not only reduces the power transmitted but also causes significant problems for magnetic pumps used to transport volatile liquids. The power transmitted by the magnet follows a continuously decreasing curve as the temperature rises. Generally, below the operating limit temperature of the magnet, the decrease in its transmission capacity is reversible, whereas above this limit temperature it becomes irreversible; that is, once the magnet is cooled, the lost transmission capacity cannot be restored. Under special circumstances, when slippage (loss of synchronization) occurs in the magnetic coupling, the eddy current heat generated within the spacer increases sharply, leading to a rapid rise in temperature. If this is not addressed promptly, it can cause the magnets to lose their magnetism, resulting in the failure of the magnetic coupling.