QJ Series Electric/ Diesel Water Pumps For Well

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5000 unit/month

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Quick Details

  • Place of Origin:Henan, China (Mainland)

  • Model Number:200QJ40-45/3

  • Theory:Centrifugal Pump

  • Structure:Multistage Pump

  • Usage:Water

  • Power:10 hp

  • Standard or Nonstandard:Standard

  • Fuel:Electric

  • Pressure:High Pressure

  • Application:Submersible

  • Material:Cast Iron / 201,304,316 Stainless Steel

  • Color:Blue

  • Flow:40m3/h

  • Head Range:32-48m

  • Power:7.5 kW

  • Rotational Speed:2875r/min

  • Drive:Motor

  • OEM,Design Service:Accept

Packaging & Delivery

Packaging Details:wooden box packing
Delivery Detail:3-5days after payment confirmation or as customers' requirements

Specifications

QJ series electric/ diesel water pumps for well
1.Flow:10~500m3/h
2.Lift:10~600m
3.no leakage,long life
4.5,6,7,8,10,12 inch

 QJ series electric/ diesel water pumps for well

1. Operation parameters

Flow range

10~500 m3/h

Lift range

10~600m

Applicable well Borehole diameter

φ175~φ400mm

Diameter scope

φ32~φ203mm

Temperature range

-15~80 centidegree

2.Product overview

QJ submersible pumps are widely used in

agriculture irrigation, sprinkler irrigation well water lifting

water supply, drain system of industrial and civil building

the hill, mountain areas' water diversion

drainage of low-lying areas

water supply, drainage of industrial and mining enterprises in urban and rural area

all the other water facilities

3. Model significance

300 QJ 200-40

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

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

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

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

3. Technical parameters

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

Model

Flow range

Head range

Rotation speed

Pump efficiency

Rated power of motor

Maximum outer diameter of unit

Weight

(m3/h)

(m)

(r/min)

(%)

(kw)

(mm)

(kg)

175QJ10-40/3

9-11

42-

38

2850

53

2.2

48

175QJ15-65/5

13-17

68-

62

2850

58

5.5

168

73

200QJ15-26/2

13-17

28-

24

2850

62

2.2

184

48

200QJ20-30/2

18-22

31-

29

2850

66

3

184

59

250QJ140-105/7

130-150

91-120

2875

76

63

233

430

300QJ300-160

279-321

167-153

2900

76

220

620

4.  QJ 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.  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.

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Q:Does the lift of pump relate to the water level of import and export?
Pump head refers to the inlet and outlet pressure head, that is to say, the entrance resistance greatly affects the pump lift, of course, this inlet resistance has a degree, too large water pump does not bring water or cause water pump cavitation. If the water level at the pump inlet is the same height, the inlet flow resistance of the pump may not be considered.
Q:Why can't sprinkler system and hydrant system share water pump in fire fighting system?
The design code of sprinkler system GB 50084 - 2001 (2005 Edition) stipulates that the sprinkler system shall be provided with an independent water supply pump, that is, the water pump shall not be shared with the hydrant system. The aim is to ensure the reliability of the water supply and prevent interference.See the code for design of automatic sprinkler system, GB 50084 - 2001 (2005 Edition), 10.2.1 and the corresponding provisions of the following interpretation.
Q:Water pump belongs to power equipment or mechanical equipment?
Mechanical equipment, right?. The motor is only transmitting power to the pump, and no other device is available.
Q:What's the difference between a cold water pump and a hot water pump?
Cold water pump refers to the pump can be transported below 80 degrees C temperature liquid, known as cold water pump, between 80 degrees C to 120 degrees C, the temperature of the pump is called hot water pump.1, the characteristics of hot water pumpHot water pumps IRG hot water pump which is based on ISG and ISW centrifugal pump series on optimization designed, especially IRG type hot water circulating pump consumption, because the pump adopts a vertical motor is installed in the upper part, and a short frame between the pump and motor, not because of a mechanical seal Water Leakage phenomenon the motor inside the water inlet of the motor burn, but also in the IRG based on the design of the hot water pump mechanical seal in high temperature hot water pump maximum temperature by external tap water cooling device can reach 240 DEG C.2, the characteristics of cold water pumpSeal packing seal or mechanical seal rubber material Ding Qing cold water pump commonly used, the most common packing pump is IS single stage single suction centrifugal pump of the pump is also one of the earliest water pump products, because the filler itself requires liquid cooling and lubricating the pump temperature as the only 80 degrees, and packing seal cold water pump and dripping phenomenon has pollution to the pump body pump base and the surrounding environment, this kind of product has been ISG and ISW centrifugal pump series products replaced, ISG and ISW series of cold water with mechanical seal it has no water leakage phenomenon, and is directly connected with the impeller structure used in the the shaft of the motor, the noise and vibration above is obviously better than that of the old type of IS series cold water pump this kind of pump products commonly used in air conditioning water cycle with so called air conditioning chilled water circulating pump.
Q:How large is the starting current for a 1.5 kW submersible pump?
1KW about 2 current, so the rated current is about 3A, and the starting current is usually 3-8 of the rated current, that is 9-24A.
Q:90kw pump star delta start, in the end to use the circuit breaker, AC contactor (Star contactor, angle contactor), what kind of thermal relay?
The star delta circuit you give belongs to the international standard starting mode, different from the old gb. The first said (the old national standard, is actually the domestic elders step-down manner, they are the main contactor) after shunt implementation of star triangle, so there will be a larger contactor, down economic calculation.And the new international standard (you give the circuit diagram) can be seen that the air switch to select the motor current to meet the given amount of surplus, 90kw motor rated current 175A, so choose 225A air switch can be. 1KM 2KM is the main operation of contactors, contactor, they each pay half the current line in triangle, so choose 110A (like never seen 100A) current, 3KM star, because of short-time current will not cause damage to the contact, a little lower 80A is not affected. Heat meter: if you don't use a transformer, you can choose JR36---160A.Some friends may feel small, in fact as long as you pay attention, you will find a lot of electrical equipment factory are doing this standard. In this way, both cost savings and service requirements are met.
Q:How do I know the pump pressure?
Flow 18 cubic meters / hour, lift 100 meters, power 4 kilowatts.The pressure supplied by the pump is 1.0Mpa, which is 10 kg pressure.Is it a multistage pump?
Q:A direct type pump model with the coupling type, what is the difference?
This you can Baidu ah, otherwise it is not professional staff, it is estimated that will not be too clear
Q:Water pump mutual switching device
The main purpose of the control is to make sure that the pump outlet has a nominal pressure.Control requirement: 1. Start single pump manually.2, two pumps should alternate.3, the pump exports to achieve certain pressure, the normal operation of the motor, and the pressure is too low, the operation is meaningless.Device: AC contactor, intermediate relay, etc..Principle: 1, detect a pump fault (usually take the motor main contactor, auxiliary contact), interlock another pump to start.2, pump outlet pressure detection device detects low pressure, can start another pump at the same time, to ensure the normal export pressure!
Q:Pump suction and pressure side road why should vacuum table and pressure gauge, and what role they have?
The pump suction and pressure side roads shall be equipped with a vacuum meter and a pressure gauge to monitor the operation of the system. When the pump is running, if the suction side of the vacuum decreases, indicating that the performance of water pump or water absorption pipe leakage; if the vacuum increases, it may be blocked suction pipe. The pressure on the water side is too large. It may be less water or the water pipe is blocked. If the pressure drops, the water consumption may increase or the water pump performance will decrease.The pressure gauges on the water side also play an important role in observing the pressure changes at the start of the pump to determine when to open the outlet valve. Usually larger pump starts, should first close the outlet valve to reduce the starting current, until the pressure of the pump rising and stable, then open the outlet valve.

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