TEL: +86 18320188145 丨 Whatsapp:+86 13909754659 
The Reason Why Magnetic Pump Fail To Start
TIME：2024-06-04 Author：admin Views：
A magnetic pump that fails to start can be caused by the following:
1. There are foreign matter in the magnetic pump.
2. Pump bearings are jammed with impurities gathering
3. Internal and external magnetic rotor rubbing against with the sealing cover.
4. It should also be noted that when the magnetic pump overhaul a few times can not find the problem, should pay attention to the magentic coupling is working properly.
5. Electrical failure,etc.
Magnetic pump fail to start the processing solution:
1. Removal of foreign matter.
2. Clean disintegration.
3. Check the internal and external magnetic rotors in the disassembly, check the electrical components.
4. Bearings, internal magnetic rotor and spacer will generate heat during operation, which will increase the working temperature, and on the one hand, the transferred power will decrease, and on the other hand, it will be a big trouble for acid and alkali resistant pumps conveying liquids that are easy to be vaporized. The power transferred by the magnet is a continuous decline curve with the rise of temperature, usually below the working limit temperature of the magnet, the decline of its transfer capacity is reversible, while above the limit temperature is irreversible, it means that after the magnet cools down, the lost transfer capacity can never be restored. Special circumstances in the magnetic coupling slip (out of step), the heat of the eddy current in the spacer will grow dramatically, the temperature rises sharply, if not dealt with in a timely manner, will cause the magnet steel demagnetization, so that the magnetic coupling failure. Therefore, acid and alkali resistant magnetic pumps should be designed with a reliable cooling system.
For the medium that is not easy to vaporize, the cooling circulation system is generally led by the impeller outlet or pump outlet of the liquid flow, through the bearings and the magnetic drive part back to the suction population.
For the medium that is easy to vaporize, the heat exchanger should be increased or the liquid flow should be led to the storage tank outside the pump, to avoid the heat back to the suction population, for the medium that has solid or ferromagnetic impurities, should not be filtered with magnetic pumps but change to vertical pumps.
For high temperature medium, the acid and alkali resistant magnetic pump of PVDF should be considered to ensure that the magnetic coupling does not exceed the working limit temperature.
5.When considering whether the rotational speed is sufficient, first check whether the rotational speed of the motor itself is normal, which can be measured by a tachometer, and in the case where the motor speed is normal, you can consider whether there will be a slip of the magnetic coupling.
1. There are foreign matter in the magnetic pump.
2. Pump bearings are jammed with impurities gathering
3. Internal and external magnetic rotor rubbing against with the sealing cover.
4. It should also be noted that when the magnetic pump overhaul a few times can not find the problem, should pay attention to the magentic coupling is working properly.
5. Electrical failure,etc.
Magnetic pump fail to start the processing solution:
1. Removal of foreign matter.
2. Clean disintegration.
3. Check the internal and external magnetic rotors in the disassembly, check the electrical components.
4. Bearings, internal magnetic rotor and spacer will generate heat during operation, which will increase the working temperature, and on the one hand, the transferred power will decrease, and on the other hand, it will be a big trouble for acid and alkali resistant pumps conveying liquids that are easy to be vaporized. The power transferred by the magnet is a continuous decline curve with the rise of temperature, usually below the working limit temperature of the magnet, the decline of its transfer capacity is reversible, while above the limit temperature is irreversible, it means that after the magnet cools down, the lost transfer capacity can never be restored. Special circumstances in the magnetic coupling slip (out of step), the heat of the eddy current in the spacer will grow dramatically, the temperature rises sharply, if not dealt with in a timely manner, will cause the magnet steel demagnetization, so that the magnetic coupling failure. Therefore, acid and alkali resistant magnetic pumps should be designed with a reliable cooling system.
For the medium that is not easy to vaporize, the cooling circulation system is generally led by the impeller outlet or pump outlet of the liquid flow, through the bearings and the magnetic drive part back to the suction population.
For the medium that is easy to vaporize, the heat exchanger should be increased or the liquid flow should be led to the storage tank outside the pump, to avoid the heat back to the suction population, for the medium that has solid or ferromagnetic impurities, should not be filtered with magnetic pumps but change to vertical pumps.
For high temperature medium, the acid and alkali resistant magnetic pump of PVDF should be considered to ensure that the magnetic coupling does not exceed the working limit temperature.
5.When considering whether the rotational speed is sufficient, first check whether the rotational speed of the motor itself is normal, which can be measured by a tachometer, and in the case where the motor speed is normal, you can consider whether there will be a slip of the magnetic coupling.
