Specifications

electric submersible pump 380V 50Hz

1. QJ AC submersible water pump operation parameters

1. Flow range:10-500 m³/h

2. Lift range:10-600m

3. Applicable well Borehole diameter:φ175-φ400mm

4.Diameter scope:φ32—φ203mm;  

5.Temperature range: -15—80°C.

submersible water pump motor power range from1.5KW to 410KW.

star-delta starter  AC  submersible water pump

2.QJ submersible water pump product overview

QJ submersible pumps are widely used in

3. QJ submersible water pump model significance

300 QJ 200-40

300-----------Base No.

QJ------------Type characteristic, Submersible

200-----------Flow (m3/h)

40------------Head (m)

submersible water pumpAssembling and Test Center

3. QJ AC submersible water pump technical parameters

Several type parameters, other type, please contact with manufacturer.

Automatic spray paint for submersible water pump

4.  QJ submersible water pump using condition

(1). 380V voltage deviation is no more than ±5%, frequency is 50HZ, three -phase power deviation is no more than ±1%.

(2). Motor cavity must be filled with water.

(3). The first stage impeller of the pump should be more than 2mm below the moving water surface, pump unit should be less than 70m below the static water level.

(4). The distance from the motor bottom to well bottom must be more than 3m.

(5). Water temperature should be no more than 20 centidegree.

(6). Sand content of the water ( by mass) should be no more than 0.01%.

(7). PH value of water 6.5~8.5.

(8). Hydrogen sulfide content of the water should be no more than 1.5mg/L.            

(9). Chloride ion content of the water should be no more than 400mg/L.

(10). Water yield of water source should ensure the requirements of pump continuous working.

5.  QJ submersible water pump characteristics

 (1).  Motors and pumps assembled into one.

 (2).  Simple structure.

 (3).  Easy installation and removal, small area.

 (4).  Simple using and maintenance.

 (5).  Safe and reliable operation, no pollution to water, etc.

6. Structure explanation of submersble water pump

1.Submersible electric pump is composed of five parts: water pump,submersible motor,water line,waterproof cable and control switch. Water pump belongs to single suction multistage vertical centrifugal pump.

2.Submersible motor adopts water-filled wet structure,internal chamber was filled with water for cooling the motor and lubricating the bearing.In the operation,due to the changes of temperature,the pressure of the filled water in the internal chamber also changes,it can be automatically regulated by pressure-regulating unit in the lower part of motor.

3.For preventing the sand getting into the motor,the sand-preventing unit including sand slinger and skeleton oil-sealed was installed in the upper part of motor,the whole motor was sealed tightly.

4.There are water injection hole and exhaust hole in the upper part of the motor and discharge hole in the lower part.

5.There are thrust bearing and thrust collar,mainly for sustaining remnant axial force of pump and the empty weight of motor's rotor.

6.The winding of motor stator adopts water-proof electromagnetic wire with good insulating and water-proof functions and rotor adopts squirrel-cage structure.

7.When used in the environment where there are large grittiness or corrosive water,it should adopt the submersible pump made from casting stainless steel or copper alloy.

Equipments & Tools of Installation of submersible water pump

1,A pair of chain hoist with the lifting capacity exceeding 2 ton

2, A tripod with the vertical height surpassing 13.1233596 ft (4m)

3, Two pieces of lifting rope (wire rope) with bearing capacity being 1ton

4, Two pairs of the blocking hoop (splint)

5, Wrench, hand hammer, screwdriver, electrical tools & instruments etc

Quick Details of submersible water pump

AC electric motor of submersible water pump

submersible motor of water pump

175-----suitable for 175mm(7inch) deep well

200-----suitable for 200mm(8inch) deep well

250-----suitable for 250mm(10inch) deep well

300-----suitable for 300mm(12inch) deep well

400-----suitable for 400mm (16inch) deep well