You are here: Home » News » What Is 200QJ Well Submersible Pump (deep well pump)?

What Is 200QJ Well Submersible Pump (deep well pump)?

Views: 30     Author: Site Editor     Publish Time: 2022-11-11      Origin: Site


What Is 200QJ Well Submersible Pump (deep well pump)?

200QJ series submersible well pump is a water-lifting machine that is directly connected to the motor and the water pump. It is suitable for extracting groundwater from deep wells, and can also be used in rivers, reservoirs, canals, etc. to water-lifting projects: mainly used for farmland irrigation and plateau mountainous areas. It can also be used for water supply and drainage in cities, factories, railways, mines and construction sites.

QJ well submersible electric pump is characterized as follows

  • 1. The motor and the water pump are integrated, submerged in the water to run, safe and reliable.

  • 2. There are no special requirements for well pipes and water lifting pipes (that is, steel pipe wells, ash pipe wells, earth wells, etc. can be used under pressure permission, and steel pipes, rubber pipes, plastic pipes, etc. can be used as water lifting pipes.

  • 3. Easy to install, use and maintain Simple, small footprint, no need to build a pump room. 

  • 4. Simple structure, saving raw materials.

Whether the conditions for the use of submersible electric pumps are suitable or not, and proper management are directly related to the service life.

1. The QJ well submersible pump unit consists of four parts: water pump, submersible motor (including cable), water pipe and control switch.

Model Of Submersible Pump

4SD 4SP 4ST 5SP 6SP 8SP 10SP 6SR 150QJ 200QJ 250QJ

The submersible pump is a single-suction multistage vertical centrifugal pump. The submersible motor is a closed water-filled wet, vertical three-phase cage asynchronous motor.

Equipped with three-core cables of different specifications; the starting equipment is an air switch of different capacity levels and a self-coupled decompression starter, the water pipe is made of steel pipes of different diameters, connected by flanges, and the high-lift electric pump is controlled by a gate valve.

Components Of A Submersible Pump

1. The QJ well submersible pump unit consists of four parts: water pump, submersible motor (including cable), water pipe and control switch.

2. A rubber bearing is installed in the guide casing of each stage of the submersible pump; the impeller is fixed on the pump shaft with a conical sleeve; the guide casing is connected by threads or bolts. 3. The upper part of the high-lift submersible pump is equipped with a check valve to avoid the damage of the unit caused by the shutdown of the water sag.

3. The upper part of the submersible motor shaft is equipped with a labyrinth-type sand preventer and two skeleton oil seals assembled in reverse to prevent quicksand from entering the motor.

4. The submersible motor adopts water-lubricated bearings, and the lower part is equipped with a rubber pressure regulating film and a pressure regulating spring to form a pressure regulating chamber to adjust the pressure change caused by temperature; the motor winding is made of polyethylene insulated nylon sheathed durable consumer water magnet wire, The cable connection method is based on the QI-type cable joint process, the joint insulation is removed and the paint layer is scraped off, respectively connected, welded firmly, and wrapped with a layer of raw rubber. Then wrap 2~3 layers of waterproof adhesive tape, and wrap 2~3 layers of waterproof tape on the outside or wrap a layer of rubber tape with water glue to prevent water seepage.

5. The motor is sealed with precision stop bolts, and the cable outlet is sealed with rubber pads. 7. There is a water injection hole at the upper end of the motor, a vent hole, and a water drain hole at the bottom.

6. The lower part of the motor is equipped with upper and lower thrust bearings. There are grooves on the thrust bearings for cooling, and it is a stainless steel thrust plate for grinding, which follows the upper and lower axial force of the water pump.

content is empty!

Quick Links

Contact Details



TEL: 0086-57686932269
© 2021ZHEJIANG DOLAY PUMP INDUSTRY CO. LTD. All rights reserved.Site Map. Technology by leadong