1、 Product Overview of QJ Deep Well Submersible Pump:

The QJ type submersible pump for wells is a water lifting equipment that is directly connected to a motor and a water pump for underwater operations. It consists of a submersible pump, submersible motor, water supply pipe, cable, and start-up guard assembly. It is suitable for extracting groundwater from deep wells, and can also be used for water lifting projects such as rivers, reservoirs, and ditches. It is mainly used for irrigation in farmland and for human and animal use in high-altitude mountainous areas. It can also be used for water supply and drainage in cities, factories, railways, mines, and construction sites.
2、 Key features of QJ type deep well submersible pump:

1. The motor and water pump are integrated and operate underwater, with a simple layout, energy saving and high efficiency, and reliable safety.

2. There are no special requirements for well pipes and lifting pipes. Steel pipe wells, ash pipe wells, soil wells, etc. can all be used. Under pressure, steel pipes, rubber hoses, plastic pipes, etc. can be used as lifting pipes.

3. Beautiful appearance, light weight, low noise, no pollution, strong adaptability to the settlement environment, significantly reducing project costs, and not affecting equipment and natural landscapes.

4. Easy to install, use, and maintain, with a small footprint.

3、 Functional limitations of QJ type deep well submersible pump:

Flow rate: 2-320m3/h;

Head: 11-300m;

Speed: 1450-2850r/min;

Diameter: 100-350 millimeters;

Medium temperature: ≤ 20 ℃;

5、 Application prerequisites for QJ type deep well submersible pump:

1. The power supply is 50Hz, 380V triple alternating current.

2. The first stage impeller of the water pump should submerge below 1 meter of the dynamic water level, and the distance between the bottom of the motor and the bottom of the well should not be less than 3 meters, but the submergence depth should not exceed 70 meters.

3. The solid content in water (by mass) shall not exceed 0.01%, the pH value of the water shall be between 6.5 and 8.5, and the chloride ion content shall not exceed 400mg/I.

4. The water temperature should not exceed 20 ℃.

5. The well should be upright (based on being able to be placed in place and lifted smoothly, if the deviation is sharp, the well diameter should be slightly larger or an electric pump with a smaller diameter should be selected)

6. The well must have sufficient water inflow (i.e. greater than the rated flow rate).