The self-priming water pump is a pump type product in which the pump and the motor are connected and submerged under the liquid. The ZW self-priming sewage pump is a self-priming and non-blocking sewage pump, which adopts an axial reflow type and passes through the pump body. The unique design of the impeller runner allows for the delivery of clean water or sewage and feces with particles and fibers. It is widely used in municipal sewage treatment projects, river pond culture manure treatment, sedimentation of waste mineral impurities, light chemical, paper, food, chemical, pharmaceutical, electric power, paddles and mixtures. The sewage pump has a strong suction and no blockage structure design.
Common faults and troubleshooting methods for ZW self-priming sewage pump:
First, the failure phenomenon (no water)
Cause Analysis:
1. There is no liquid storage or insufficient liquid storage in the pump casing 2. Air leakage in the suction line 3. The speed is too low 4. The suction stroke is too high or the suction line is too long 5. The mechanical seal leakage is too large 6. The suction line gas cannot be from Export discharge method:
1. Add sufficient liquid storage 2. Check and eliminate air leakage phenomenon 3. Adjust the rotation speed 4. Reduce the suction stroke or shorten the suction line 5. Repair or replace 6. Discharge 2, noise and vibration Cause analysis:
1. The foot is unstable 2. The pump shaft is bent 3. The cavitation phenomenon 4. The bearing wear is serious 5. There is debris in the inlet pipe 6. The main shaft of the pump and the motor are different.
1. Reinforcement 2. Replacement or correction 3. Adjustment of working conditions 4. Replacement 5. Removal of debris 6. Adjustment of coaxiality III. Analysis of the reasons for insufficient water output:
1. The impeller flow path and the suction pipe are blocked. 2. The impeller or impeller seal is seriously worn. 3. The power is insufficient or the rotation speed is too low.
1. Eliminate the blockage 2. Replace the ring 3. Add enough power, adjust to the rated speed 4. The shaft power consumption is too large.
1. The flow rate is too large 2. The rotation speed is too high 3. The pump shaft is bent or the impeller is stuck. 4. The flow path inside the pump is blocked or stuck.
2. 1. Increase the outlet pressure correction appropriately reduced or 4. 3. Replace line plug-type self-priming sewage pump ZW Author: Wing pump manufacturers Jia Liangbang
Common faults and troubleshooting methods for ZW self-priming sewage pump:
First, the failure phenomenon (no water)
Cause Analysis:
1. There is no liquid storage or insufficient liquid storage in the pump casing 2. Air leakage in the suction line 3. The speed is too low 4. The suction stroke is too high or the suction line is too long 5. The mechanical seal leakage is too large 6. The suction line gas cannot be from Export discharge method:
1. Add sufficient liquid storage 2. Check and eliminate air leakage phenomenon 3. Adjust the rotation speed 4. Reduce the suction stroke or shorten the suction line 5. Repair or replace 6. Discharge 2, noise and vibration Cause analysis:
1. The foot is unstable 2. The pump shaft is bent 3. The cavitation phenomenon 4. The bearing wear is serious 5. There is debris in the inlet pipe 6. The main shaft of the pump and the motor are different.
1. Reinforcement 2. Replacement or correction 3. Adjustment of working conditions 4. Replacement 5. Removal of debris 6. Adjustment of coaxiality III. Analysis of the reasons for insufficient water output:
1. The impeller flow path and the suction pipe are blocked. 2. The impeller or impeller seal is seriously worn. 3. The power is insufficient or the rotation speed is too low.
1. Eliminate the blockage 2. Replace the ring 3. Add enough power, adjust to the rated speed 4. The shaft power consumption is too large.
1. The flow rate is too large 2. The rotation speed is too high 3. The pump shaft is bent or the impeller is stuck. 4. The flow path inside the pump is blocked or stuck.
2. 1. Increase the outlet pressure correction appropriately reduced or 4. 3. Replace line plug-type self-priming sewage pump ZW Author: Wing pump manufacturers Jia Liangbang
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