Self Priming Dewatering Pump

Name: Self Priming Dewatering Pump
Brand: Modo Pump Co.,Ltd
SKU: 245261950

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Product Details

Self Priming Dewatering Pump can pump dirt, sediment, waste ore impurities, feces treatment and all engineering sewage and colloidal liquids containing large solid particles with a diameter of 60% of the outlet diameter and a fiber length of 1.5 times the impeller diameter.
The axial reflux external mixing type is adopted, and the unique design of the pump body and impeller flow channel does not require the installation of a bottom valve and water diversion like a general self-priming clean water pump, and can also absorb and discharge liquids containing large solid particles and long fiber impurities.

Startup and Operation of Self Priming Dewatering Pump:
1. Start the self-priming pump and pay attention to whether the direction of the pump shaft is correct.
2. Pay attention to whether there are abnormal sounds and vibrations during rotation.
3. Pay attention to the readings of the pressure gauge and vacuum gauge. After starting, when the readings of the pressure gauge and vacuum gauge fluctuate for a period of time and indicate stability, it means that the pump has been filled with liquid and entered the normal infusion operation.
4. Before the pump enters the normal infusion operation, that is, during the self-priming process, special attention should be paid to the increase in water temperature in the pump. If this process is too long and the water temperature in the pump is too high, stop the pump to check the cause.
5. If the temperature of the liquid in the pump is too high and it causes difficulty in self-priming, you can temporarily stop the machine, use the liquid in the discharge pipeline to flow back into the pump or directly add liquid to the pump at the liquid storage port on the pump body to cool the liquid in the pump, and then start it.
6. If the pump vibrates and makes strong noises during operation, it may be caused by cavitation of the pump. There are two reasons for cavitation: one is that the flow rate of the inlet pipe is too large, and the other is that the suction range is too high. When the flow rate is too high, the outlet control valve can be adjusted to increase the pressure gauge reading. If the inlet pipeline is blocked, it should be removed in time; if the suction range is too high, the installation height of the pump can be appropriately lowered.
7. If the pump stops for some reason during operation and needs to be restarted, the outlet control valve should be slightly opened (not fully closed), which is conducive to the discharge of gas from the outlet during the self-priming process and can ensure that the pump starts under a lighter load.
8. Pay attention to check whether there is leakage in the pipeline system.

Common faults, causes and troubleshooting methods of Self Priming Dewatering Pump:

Fault	Reasons	Method of exclusion
No water coming out of the pump	1. No liquid or insufficient liquid in the pump body 2. Leakage in the suction pipe 3. Voltage is too low 4. Suction range is too high or the suction pipe is too long 5. Excessive leakage in the mechanical seal	1. Add enough 2. Eliminate air leakage in pipelines 3.Adjust voltage 4. Reduce the suction lift or shorten the pipeline 5. Repair or replace
Insufficient water output from the pump	1. Due to improper use, the impeller flow channel or suction pipe is blocked 2. The impeller is severely worn 3. Insufficient power and too low speed	1. Eliminate blockages 2. Replace the impeller 3. Adjust the speed to the rated speed
The pump makes excessive noise and vibration	1. The base is unstable, 2. The bearing is severely worn 3. The pump and motor shaft are not aligned	1. Reinforcement 2. Replace bearings 3. Adjust coaxiality
Bearing temperature is too high	1. Grease deterioration or drying 2. Bearing damage	1. Replace grease 2. Replacement bearings
Pump Leakage	1. Loose connection bolts 2. Wear of seals	1. Fasten 2. Replacement