Magnetic isolation pump is the use of permanent magnet coupling non-contact torque transmission of the new pump, when the prime mover to drive the outer magnet rotation, the role of the magnetic field driven by the synchronous rotation of the inner magnet steel, and Within the magnet rotor and impeller into one, so as to achieve the purpose of non-contact impeller rotation. So, magnetic isolation pump may exist what fault? (1) Magnetic pump shaft break. CQB-type magnetic pump shaft material used is 99% of alumina ceramic, the main reason for the shaft is broken, because the pump runs dry, the shaft bearing dry wear and tear. Open the pump inspection can be seen when the bearing has been seriously damaged to prevent the pump broken off the main method is to avoid the air pump running. (2) magnetic pump bearing damage. CQB magnetic pump bearings are made of high-density carbon material, in case of pump water or pump impurities, it will cause the bearing damage. Cylindrical coupling inside and outside the rotor between the coaxial requirements if not guaranteed, it will directly affect the bearing life. MP micro-magnetic pump (3) Magnetic pump can not play the liquid. Magnetic pump can not play the liquid pump is the most prone to failure, its reasons are more. First of all, check whether the pump suction pipe leaks, check the suction pipe air is exhausted, the amount of liquid filled in the magnetic pump is sufficient, inhalation tube whether there is debris clogging, check whether the pump is reversed (Especially after changing the motor or overhauling the power supply line), you should also pay attention to whether the suction height of the pump is too high. If the above inspection still can not be solved, the pump can be disassembled and checked to see if the pump shaft is broken. Check whether the moving ring and the static ring of the pump are intact, and whether the entire rotor can move in a small amount. If the axial movement difficulties, can check whether the carbon bearing with the pump shaft is too close. In considering whether the speed is enough, we must first check the motor speed is normal, tachometer available for measurement, the motor speed is normal, you can consider whether there will be magnetic coupling slippage. (4) lack of lift. The reasons for this failure are: transmission medium air, impeller damage, speed is not enough, the proportion of liquid transport is too large, the flow is too large. (5) lack of traffic. The main reasons for the lack of flow are: impeller damage, speed is not enough, the lift is too high, the tube is clogged with debris and so on. The above is the main point of magnetic isolation pump failure analysis, I hope for your help, more information, please visit the "Asian Fluid Network." Expand to read: Guangzhou Central Expo China Construction Water Show Industrial Internet (Xiamen) Technology Co., Ltd. Asia Pump Network Editor: Xiao Hai http://beng.liuti.cn/ (Service Hotline: 400-6030-811)