^{WORKING CONDITIONS:}

1. Rated frequency is 50 HZ. Nominal voltage is 380±5% three-phase alternating-current supply.

2. Pump must be 1m under water intake, but submersible depth must be within 70m and bottom  of motor must be at least 1m.

3. Water temperature usually less than 20°C.

4. Water quality:

• Silt content less than 0.01% (weight)

• PH 6.5-8.5

• Chloride content less than 400mg/L. For example, normal temperature water, well water, river water, lake water.

  
  

Structure:

• 1. Submersible pump unit for well is composed of four parts of water pump, motor, water pipe, water proof cable,in which water pump is single-suction multi-stage vertical centrifugal pump.

• 2. Because of water-filling structure inside, submersible motor is mainly used to motor-cooling and bearing-lubricating. With temperature variation in the course of operation, the high-pressure installation under motor can automatically adjust with the change of water-filling inside motor.

   

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