QJ well submersible pump is a water-lifting pump that integrates a motor and a water pump directly and works submerged in water. It is suitable for extracting groundwater from deep wells and can also be used in water-lifting projects such as rivers, reservoirs, and canals. It is mainly used for farmland irrigation and water supply for humans and livestock in plateau and mountainous areas, and can be used for water supply and drainage in cities, factories, railway mines, and construction sites.

Structural Features

• Pump Body: It adopts a multi-stage impeller series structure, composed of the pump body, impellers, guide vanes, etc. The number of impeller stages can be adjusted according to the head requirement.
• Motor: It is coaxial with the pump body and is a submersible three-phase asynchronous motor. It uses water-lubricated bearings, and the motor cavity and the water pump cavity are isolated by a sealing device to prevent water from entering the motor.
• Sealing System: Mechanical seals or rubber seals are used to ensure the long-term safe operation of the motor underwater.

Performance Advantages

• Efficient and Energy-Saving: The impeller has advanced hydraulic design, with high efficiency and low energy consumption.
• Strong Adaptability: It can work stably in deep wells (the well diameter is generally not less than 100mm), with a wide head range (ranging from tens of meters to hundreds of meters), and the flow rate can be selected according to requirements.
• Easy Installation: It is directly submerged in the well, without complicated ground installation facilities, saving space and cost.

Applicable Medium and Working Conditions

• The conveyed medium is clean water or other liquids with physical and chemical properties similar to clean water, and the sand content of the liquid does not exceed 0.01%.
• The working environment temperature generally does not exceed 20℃, and the diving depth is usually not more than 70 meters (depending on the model).

QJ well submersible pump is a water-lifting pump that integrates a motor and a water pump directly and works submerged in water.