QJ Vertical Submersible Deep Well Centrifugal Water Pump

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Quick Details

  • Place of Origin: Zhejiang, China (Mainland)

  • Brand Name: YONJOU

  • Model Number: QJ

  • Theory: Centrifugal Pump

  • Structure: Multistage Pump

  • Usage: Water

  • Power: Electric

  • Standard or Nonstandard: Standard

  • Fuel: electric

  • Pressure: Low Pressure

  • Application: Submersible

Packaging & Delivery

Packaging Details:standard plywood or carton for each QJ vertical submersible deep well centrifugal water pump
Delivery Detail:10 days after receiving pre-payment

 

 

 

1.Operation parameters :

(1). Flow range : 10-500 m3/h

(2). Lift range : 10-600m

(3). Applicable well diameter : φ175-φ400mm

(4). Diameter scope:φ32—φ203mm;

(5).Temperature range: -15—100°C.

 

2. Product overview :

 QJ series deep well submersible waterpumps are widely used in farm irrigation, sprinkler irrigation, getting water from well, water supply and drainage system for industrial and civil building, water diversion project in hilly and mountain areas water drainage project in at low-lying areas, water supply and drainage in urban and rural's mining enterprisesand various ther kinds of water conservancy facilities. Its features are that the Motor and pump are assembled into a whole, so that it is simple in structure, convenient to assemble and disassemble, easy to use and maintain safe to operate. Otherwise, it covers an small area and does not pollute water.

 

3 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°C.

(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.

 

4. Material

Impeller: Cast iron HT200,or stainless steel

Pump bowl: Cast iron HT200,or stainless steel,such as ss304 ss3016

Pump shaft : Cold-drawn steel with chrome plating,or stainless steel SS304 SS316

Motor Seal: Rubber O-ring seal,mechanical seal

Motor regulating sleeve: Rubber

 

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Q:What's the difference between a double suction pump and a single suction pump?
The 3 floor of a friend, the next time you quote us the trouble to answer, please indicate the source, at least to keep integrity! Now on the market a variety of micro pump, micro pump, micro pump, high pressure micro water pump, liquid sampling pump, small pump, self suction pump, DC pump, diaphragm pump, whether has the function of self suction, mainly refer to the following two points: 1. means: self suction pump suction pipe is in the air, using form a negative pressure pump at work (vacuum), under the influence of the atmospheric pressure will be lower than the water pumping port, then discharged from the pump discharge end. Before this process, there is no need to add "diversion water". The pump with this capability is called a self suction pump". 2., some centrifugal or rotary vane pump, before absorbing water, you must add "water diversion" in the pump cavity to form a closed environment, and then pump operation to form negative pressure, to achieve the purpose of water absorption. For example, a manual pump used in rural areas. No self-priming capacity of the pump, each time before adding water to add "water" is very troublesome. 3., suction level, with the pump power, flow, structure and so on, but the general micro pump self-priming process is not easy to do higher
Q:The difference between submersible pumps and centrifugal pumps
The two are different ways of distinguishing.Centrifugal pump is in accordance with the impeller type of a pump, that is, centrifugal pump impeller is centrifugal.Submersible pump refers to its working environment is underwater, it is divided by the application environment, it can also be centrifugal pump or axial flow pump or mixed flow pump, the key is to see what kind of impeller is.Submersible pump motor is required to dive, that is, the motor protection level is relatively high, generally more than IP68 in order to dive.
Q:Flow 70 cubic meters per hour; lift 35 meters, choose what standard water pump?
The flow rate is 70 cubic meters per hour. The head is 35 meters, and the SH type double suction centrifugal pump is adopted.Double suction centrifugal pump for conveying liquid water or similar physical and chemical properties of water, according to the needs of users, by changing the pump structure and the material can be used for transport of muddy sand or various corrosive liquids, this series of pumps are suitable for factories, mines, city water supply and drainage, power plants, farmland irrigation and water conservancy.
Q:What is the function of a submersible pump?
Submersible pump motor and pump is directly connected with the water pump body into the water to work, it is suitable for the extraction of groundwater from wells, can also be used in rivers, reservoirs, canals and other water projects: mainly used for irrigation and plateau in the drinking water, but also for the city, factories, railways, mining and construction site the use of water supply and drainage.Characteristics of submersible pumps for well1 、 motor, water pump, submerged operation, safe and reliable.2, the well pipe and pump water pipe without special requirements (i.e.: steel tube wells, tube wells, Doi ash can be used).3, installation, use and maintenance of convenient, simple, small footprint, do not need to build pumping stations.The structure is simple, and the raw materials are saved.4, submersible pump conditions are appropriate, properly managed, and has a direct relationship with the service life.
Q:What is the function of the backflow pipe of the fire pump?
Generally, it is used to test the fire pump. The procedure is to start the fire pump - turn on the return pipe - return the water to the pool. The purpose of the installation is to prevent damage to the pipe caused by the excessive pressure caused by the pump.
Q:Why does the pump head decrease when the pump flow rate increases?
When the power increases to a certain extent, can not be increased, so when the flow increases, the head can only be reduced
Q:How can the pump be stationary?
Rusty, turn with your hands to see the situation, the two bearings filled with lubricating oil.
Q:Domestic pump does not turn, but the motor is energized what is the problem?
The motor is sure of electricity, isn't it? Is there a low voltage or broken phase (three-phase motor), these cases will cause the motor does not turn, or low speed (easy to block), so should be measured with a universal meter. Maybe the boot capacitor is broken. Or smell the smell of burning. It might be a short circuit between the motor windings. (bearings should be hard to break). Look for repairs if you suggest. You may not be good. Oh, capacitor. You can measure good and bad with a universal watch. If the capacitor is replaced, it is better to choose the same capacitor as the original configuration parameter.
Q:Pump power ratio design is small, the problem is big?
Lift and flow to meet the requirements of power, in fact little difference, different manufacturers and brands in the same common effect of different power phenomenon, design principle is on the one hand, the hysteresis loss mechanical loss processing technology is one of the reasons of the differences. Power, after all, does not increase, and does not have a major impact on other lines.
Q:The role of water replenishing pump in circulating system
In the circulatory system, the replenishment pump acts as a means of circulating water to the heating system and to supplement the water lost by the circulatory system. Most heating systems use a constant pressure pump to ensure that users of any degree of the system can normally cycle hot water.The fire unit is normally there are many, including the general use of the unit: water supply pump, fire pump, filling, pressure relief valve, pressure sensor, one-way valve, fire tank must maintain the required pressure, when the pressure drop or leak, the pressure sensor will fire a signal to the irrigation control cabinet, and control the cabinet module will give a water pump signal, such as a water pump after receiving the signal will immediately start running, to the fire in the irrigation water, irrigation water until the fire to the set pressure, the fire control cabinet will give irrigation pressure sensor signal, let the water pump will automatically stop running. Water pump and pressure regulating pump the same principle, are used for replenishment pressure.

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