We all know that maintenance is very important for most construction machinery products. In fact, the same is true for submersible pumps. Only when we use them in accordance with the process specifications and good maintenance can we prolong their life. Today, the submersible pump manufacturer will talk about what maintenance the submersible pump needs to perform during its use.

submersible pump

Daily maintenance of submersible pumps

Check whether the power cord is damaged or not every day, and it is absolutely forbidden to launch the submersible pump with leakage. Check the pump body for damage every day to ensure that the motor does not leak electricity during operation. After the operation, the debris attached to the water pump should be cleaned up in time, and the water pump should be rinsed clean. In order to ensure the normal operation of the submersible pump, the following requirements must be followed. Before the submersible pump is used, the insulation resistance of the motor must be checked with a megohmmeter, and the minimum value should not be less than 50MΩ.

The water immersion motor should open the irrigation screw plug, fill it with clean water and then tighten the screw plug. Do not unscrew the irrigation screw plug and directly enter the well. Check the cable for cracks and breaks before use. If damaged, it should be replaced in time to prevent leakage. Before the submersible pump is launched, water should be injected into the pump, then idle for 1-2 minutes, and start twice to check whether the start and idle operation are normal and whether the steering meets the requirements. If the direction is reversed, just exchange any two-phase wiring. Check whether the lift pipe has cracks and whether the connection is firm. When the submersible pump goes down and lifts, it is not allowed to pull the cable hard, so as to avoid damage to the cable or disconnection at the joint, which may cause undue accidents. Iron wire or pallets should be used to go down and lift.

The power supply voltage should be controlled within ±5% of the rated voltage so that the motor can work normally. If the voltage is too low or too high, the motor cannot be used continuously, so as to avoid damage to the motor when it works under overvoltage or Undervoltage for a long time. When the submersible pump is submerged in the water, it should be hung vertically and not inclined. The depth of water entry is 5 meters below the moving water level. Submersible pumps must not transport water or mud with high sand content. The actual head of the submersible pump should be used within 0.8-1.1 times the rated head to improve the efficiency of the unit, save energy, and avoid overloading the motor.

The wiring of the submersible pump motor must be solidly connected to prevent the motor from burning due to lack of phase operation. The cable must be checked frequently for cracks, scratches, etc., and if any, be replaced or repaired in time. If the oil-immersed motor has oil leakage, it should be repaired at the manufacturer or maintenance point in time, and the sealing element should be replaced. For flooded motors, the sand in the motor cavity should be cleaned frequently, and the clean water in the motor cavity should be replaced. After the submersible pump has been running for half a year, it should be repaired and inspected, and the damaged parts should be replaced. After the submersible pump is used, the water immersed motor should be drained of clean water in the motor, the pump should be cleaned, oiled to prevent rust, and stored vertically in a dry place.

The above is about the daily maintenance of submersible pumps, I hope to help you. As a submersible pump manufacturer, SEAKOO provides submersible pumps with stable performance. If you are interested in submersible pumps, welcome to pay attention to our website, we will provide more knowledge about submersible pumps.