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Issues to be noted when operating magnetic pump: Preventing particle ingress 1. Ferromagnetic impurities and particles must not enter the magnetic drive and the bearing friction pairs. 2. After transporting media that are prone to crystallization or precipitation, it is necessary to rinse the pump promptly (fill the pump chamber with clean water after stopping the pump, run it for 1 minute, and then drain the water completely) in order to ensure the service life of the sliding bearings. 3. When transporting a medium containing solid particles, filtration should be performed at the inlet of the pump suction pipe. Prevent dry friction 1. Idle operation is strictly prohibited. 2. It is strictly prohibited to evacuate the medium. 3. With the outlet valve closed, the pump shall not operate continuously for more than 2 minutes to prevent overheating of the magnetic drive. Preventing demagnetization: 1. The magnetic torque should not be designed to be too small. 2. It should operate under specified temperature conditions; it is strictly prohibited for the medium temperature to exceed the limits. A platinum resistance temperature sensor can be installed on the outer surface of the magnetic pump’s isolation sleeve to monitor the temperature rise in the gap area, so as to trigger an alarm or shut down the pump when the temperature exceeds a set limit.
Adding a filter at the inlet of a magnetic pump still carries risks; the pump may draw in insufficient volume, leading to dry grinding.