1. The pump is difficult to suction liquid reason The motor does not rotate Electric motor reversal Medium viscosity too high The suction height exceeds the allowable range Air leakage or blockage in the suction pipeline
Solution Check the power supply, wiring, and motor Adjusting the phase sequence of the motor Lower the temperature of the medium Reduce suction height Check the suction pipeline and eliminate any leaks or blockages
2. Low traffic reason The safety valve is damaged or calibrated too low Gear and pump sleeve wear Insufficient motor speed
Solution Re calibrate the safety valve to meet the design requirements. If damaged, replace or repair Replace relevant components Determine whether the rated speed of the motor meets the design requirements, and check whether the electrical voltage meets the motor requirements
3. Machine seal oil leakage reason Incorrect assembly position Sealing gland not flattened Mechanical seal damage
Solution Reassemble according to technical requirements Adjusting the sealing gland Replacing mechanical seals
4. The pump body temperature is too high reason Medium temperature too high Mechanical seal oil return hole blockage
Solution Take necessary measures to reduce the temperature of the medium Clearing the oil return hole
5. Pump overload operation reason Eliminate pipeline blockage Medium viscosity too high
Solution Stop the pump and unclog the discharge pipeline Heat up the medium appropriately
6. Severe pump vibration reason Installation height too high, causing cavitation inside the pump There is air inside the pump The pump and motor are not concentric
Solution Reduce installation height Check the suction pipeline and eliminate any leaks Adjust position and realign