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Corrosion resistant engineering plastic pump failure causes and solutions

05 Jan 2021Email

Corrosion-resistant engineering plastic pumps are suitable for continuous delivery of high-risk liquid chemical media such as strong acids, strong alkalis, organic solvents, and strong fluorinating agents at any concentration. When transporting liquid corrosive media with a solid particle content of about 5%, it needs to be equipped with corrosion resistance and wear resistance. Machinery Seal. If the pump head requirements are not high, it is recommended to use a low-speed motor of 1450 rpm, which can greatly extend the service life of the pump.

 

Failure phenomenon of corrosion-resistant engineering plastic pump Failure phenomenon of corrosion-resistant engineering plastic pump Corrosion resistant engineering plastic pump solutions
Insufficient flow of corrosion-resistant engineering plastic pump 1. The other parts of the pump overflow part are damaged
2. Insufficient speed
3. Partially blocked suction or output port
1. Replace another part
2. Check whether the voltage and motor are normal
3. Remove blockage
Insufficient lift of corrosion-resistant engineering plastic pump 1. Impeller damage
2. Insufficient speed
3. The infusion contains gas
1. Replace the impeller
2. Check whether the voltage and motor are normal
3. Reduce the liquid temperature and remove the gas
Corrosion resistant engineering plastic pump bearing heating 1. The main shaft and the motor shaft are not concentric
2. Lack of oil or oil deterioration in the bearing cap
1. Adjust concentricity
2. Add oil or change oil
Corrosion resistant engineering plastic pump power overload 1. The medium proportion is too large
2. The flow exceeds the use range
3. Produce mechanical rubbing
1. Replace a larger power motor
2. Work according to the scope of use
3. Check and adjust or replace worn parts
The corrosion-resistant engineering plastic pump has small or no liquid output 1. The motor rotates incorrectly
2. The end of the impeller center line is immersed in the liquid
1. Adjust the phase
2. Adjust the immersion height
Vibration or noise of corrosion-resistant engineering plastic pump 1. The main shaft and the motor shaft are not concentric
2. Rotor imbalance
3. The nut is loose
4. The infusion contains gas or runs out of liquid
5. Excessive wear of water bearing and journal
1. Adjust concentricity
2. Replace parts
3. Tighten the nuts of each part
4. Reduce the liquid temperature to remove the gas, and the impeller is immersed in the liquid
5. Replace the water bearing and restore the journal
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