QJ Series Deep Well Submersible Electric Pump

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Shanghai
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1 unit
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500 unit/month

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Overview of QJ Series Deep Well Submersible Electric Pump

QJ series submersible deep-well pump is new type high grade product developed and produced based on the American, Italy advanced electric pumping technology. Main parts adopt stainless steel, copper alloy, make the pump high efficiency, energy-saving, wear resistance, rust and pollution resistance, good appearance, convenient installation. Especially suitable for factories, colleges, industrial and civil, irrigation and extraction of groundwater.

 

Product Range of QJ Series Deep Well Submersible Electric Pump

1. 4" Submersible pump, The impellers and the diffusers are in plastic material(noryl),whereas the bearings are in ceramic/rubber lubricated by the water circulation.Check valve is incorporated in the delivery body with threaded outlet.The coupling Pump-motor is according to NEMA regulations.
2. 6"、8" Submersible pump, The impellers and the diffusers are in grey cast iron, (on request, the impellers can be supplied in bronze), whereas the bearings are in ceramic/rubber lubricated by the water circulation. Check valve is incorporated in the delivery body with threaded outlet (on request , it can be supplied flanged). The coupling Pump-motor is according to NEMA regulations.
3. 4"、6" Stainless steel submersible pump, the pump caising/impeller is made of stainless steel 304, 316.

 

Parameter of QJ Series Deep Well Submersible Electric Pump
Flow Range:2-200m3/h
Head Range:10-300m
Power Range:1.1-132kw
Temperature:-20℃-120℃
Material:Cast Iron、Stainless Steel
Work Pressure:≤1.6MPa
 

FAQ

Q: If I increase the power of the motor, must I also increase the power of the inverter?

A: You must select the size of converter that allows maximum absorption of the electric motor.

Q: Do you have pumps with grinders?

A: Yes, the WQ models.

Q: How long is your warranty?

A: Unless otherwise expressly authorized in writing, by specifying a longer period or different conditions, CNBM states that, for a period of twelve (12) months from delivery date, all Products supplied are free from defects in materials and workmanship, and conform to the applicable specifications. Either the delivery documentation or the invoice must be provided to prove delivery date. In absence of such documents, the production date appearing on the product label may suffice.

QJ Series Deep Well Submersible Electric Pump

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Q:25KW what is the lift of the pump?
Give you a formula for estimating the power of a pump:N=Q (L/s), *H (m), /102/ (0.6~0.85), /0.85Explanation is:N, the power unit is kW (kW)Q, flow, in units per liter (L/s)H, the lift is m102 is 1000/g, G, that is gravity acceleration, is a unit conversion0.6~0.85, the efficiency of the pump, the general flow of large values, small flow of small value;0.85, power factorIn addition, there are some general power pump module, since there are: 1.1kW, 2.2kW, 3kW, 4kW, 5.5kW, 7.5kW, 11kW, 15kW, 18.5kW, 22kW, 30kW, 37kW, 45kW, 55kW, 75kW, 90kW, 110kW, 132kW......And generally there is no 25kW pump.
Q:What are the new regulations in the design of main and auxiliary water bin and water pump room in coal mine?
The main water bin must have a main bin and an auxiliary warehouse. When a sump is cleaned, another water tank can be used normally.When the normal water inflow is below 1000m3/h, the effective capacity of the main water tank should be able to accommodate the normal discharge of 8h.The effective capacity of the main water bin can be calculated by pressing type in the mine where the normal water inflow is greater than 1000m3/h:V = 2 (Q+3000)Effective capacity of V-- main water bin in type m3;Q-- mine hourly normal water inflow, m3.However, the total effective capacity of the main water storage tanks shall not be less than the normal water inflow of 4h.The effective capacity of the water tank in the mining area shall be able to accommodate the normal water inflow in the 4H mining area.There is a big difference between the maximum water inflow and the normal water inflow in the mine. The drainage capacity and the water storage capacity should be specially designed.The water inlet chamber should be set up. A sedimentation tank shall be provided for the filling of water sand, hydraulic coal mining and other gushing water with a large amount of impurities. The water storage capacity of short positions must often remain above 50% of total capacity.
Q:I have a mechanical well how to choose the size of the pump
Deep well pumps can be used. According to your parameters. 0. 75 or 1. The 1KW deep well pump is in line with your requirements. Elephant 0. 75KW head can reach 70 meters. The water output in an hour is about 3 tons.. I wonder how much you get out of the water every hour. If the amount of water is small, you can buy a larger power point. General domestic deep well pump 0. 75 or 1. The price of 1KW is between 500-700. In the case of ordinary brands. The price of imported goods is between 600-900. The products at this price are generally of good quality.. Of course they don't sell your shoddy premise.
Q:In the design specifications, for example, the water pump requirement is two. What does that mean? Can 3 pumps be opened at once?
May not。1, the system is designed according to 2+1, 1 standby, only redundant backup of important equipment, not included in the running load.2, higher power distribution only provides 2 (maximum operating conditions) equipment rated operating power capacity (slightly margin, but limited).3, a single 160KW motor rated current is about 300A, 185 cable can only be used for the 1 pumps (with 2 units, and has overload) 630A circuit breaker is the frame level, if the current setting value is 630, it should be the main power switch (single pump with 400A circuit breaker, setting a value of 315 or 350A).4, if the 630A as the main switch to provide 2 pump power, has been close to full load (third pumps can not be added).5, water pipeline system, although not what caused the problem, but the water flow rate, flow rate of 2 pump operation should be in the ideal range, adding third pumps (the premise is to ensure the power supply) will make the water flow velocity is too large, in non ideal conditions.Conclusion: this method is inadvisable. If necessary, modify the original system, change to 3+1 mode, and change the line and circuit.
Q:50 meters deep well with what water pump: home?
For deepwater submersible pumps, ordinary submersible pumps are inefficient.
Q:What does the lift of a pump mean?
Simply from the local to the pumping pumping height calculation of rice
Q:After the pump has a control box, but also the distribution box?
1, after the pump has the control box, do not need the distribution box.2. The control box is not the same as the distribution box.Wiring principle is as follows: from the distribution box power supply into the control box, L1, L2, L3 (usually so); from the control box to connect U, V, W to the water pump.
Q:Fully automatic self-priming pump
It's difficult to answer your question only from the name you give! There are many automatic self suction pumps on the market. Generally, the pump outlet is equipped with a pressure switch. It starts automatically when the pressure is low, and stops after a certain pressure.If the pump outlet is the pool (water tank), then it is not a simple "automatic self-priming pump".It is an automatic water supply system. The whole system includes water pump, water tank, liquid level meter, electromagnetic starter (contactor), switch and so on
Q:(flood control emergency plan) what type of water pump should be used for flood control? How to choose
Each manufacturer's model is different, with submersible sewage pump is better,Submersible sewage pumps are portable, portable
Q:What does the pump lift mean?
The pump head is the height or length of the distance from the pump to the outlet

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