QJ seriesSubmersible pump for wellsproduct overview

QJ typeSubmersible pumpIt is a high-performance wear-resistant electric pump produced by our company through the introduction of leading pump manufacturing technology from abroad. The power part is equipped with a water immersed stainless steel submersible motor, QJ type, currently produced by international advanced technologySubmersible pumpAbsolutely pollution-free on water quality, which is currently the case both domestically and internationallydeep-well pumpThe exquisite product. High quality stainless steel casing, shaft core, coupling, inlet seat and pump head (or copper alloy inlet seat and pump head) are selected. The high-strength and wear-resistant new composite polymer material impeller and stainless steel guide shell are used. The new "floating" structure impeller has no axial pressure on the motor during operation. Especially suitable for industrial and mining, agriculture, construction, animal husbandry, food and beverage industries, as well as household (or high-rise water supply) use.

QJ seriesSubmersible pump for wellsModel Meaning

QJ seriesSubmersible pump for wellsSTRUCTURE DESCRIPTION

1. QJ typeSubmersible pumpThe unit consists of four main parts: water pump, submersible motor (including cables), water pipeline, and control switch.Submersible pumpSingle suction multi-stage verticalcentrifugal pumpThe submersible motor is a closed water filled wet, vertical three-phase squirrel cage asynchronous motor, which is connected to the water pump through a claw or middle Direct key cylinder coupling; Equipped with three core cables of different specifications: the starting equipment consists of air switches and self coupling pressure reducing starters of different capacity levels, the water supply pipe is made of steel pipes of different diameters, connected by flanges, and the high head electric pump is controlled by gate valves.
2.Submersible pumpEach stage of the guide shell is equipped with a rubber bearing; The impeller is fixed on the pump shaft with a conical sleeve: the guide housing is integrated with grooves or bolts.
3. High liftSubmersible pumpThe upper part is equipped with a check valve to prevent damage to the unit caused by shutdown water hammer.
4. The upper part of the submersible motor shaft is equipped with a labyrinth sand inhibitor and two reverse assembled skeleton oil seals to prevent sand from entering the motor.
5. The submersible motor adopts water lubricated bearings, and the lower part is equipped with rubber pressure regulating film and pressure regulating spring, forming a pressure regulating chamber to regulate pressure changes caused by temperature; The motor winding adopts polyethylene insulation and nylon sheath water-resistant electromagnetic wire. The cable connection method follows the QJ type cable joint process. The insulation of the joint is removed and the paint layer is scraped off. They are connected separately, welded firmly, and wrapped with raw rubber. Wrap 2-3 layers of waterproof adhesive tape, then wrap 2-3 layers of waterproof tape or use water glue to bond and wrap a layer of rubber tape (bicycle inner tire) to prevent water leakage.
6. The motor is sealed with precision stop screws, and the cable outlet is sealed with glue.
7. There is a water injection hole and a discharge hole on the upper end of the motor, and a discharge hole is drilled on the motor.
8. The lower part of the motor is equipped with upper thrust bearings, which have grooves for dry cooling. They are paired with stainless steel thrust discs for grinding, supporting the axial force of the water pump.

QJ seriesSubmersible pump for wellsperformance parameter

Kaimei Pump Industry Co., LtdSubmersible pumpSelection Notice

1Submersible pump for wellsProduct name and model,Submersible pump for wellsPipeline diameter,Submersible pump for wellsUsing head (m),Submersible pump for wellsMotor power (KW),Submersible pump for wellsMotor speed (r/min),Submersible pump for wellsVoltage [V],Submersible pump for wellsThe suction range used (m),Submersible pump for wellsName, specific gravity, viscosity, corrosiveness, and toxicity of the medium used
2、 If our company has already been selected by the design unitSubmersible pump for wellsModel, please pressSubmersible pump for wellsOrder the model directly from the marketing department of Kaimei Pump Industry Company.
3、 Please provide detailed product usage requirements as much as possible to ensure the correctness of our selection and improve the maximum efficiency of use.
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