All submersible water pumps have submersible motors. According to the cooling way of motor, we can divide our submersible water pumps into oil-filled submersible pump and water-filled submersible pump. But in this page we will focus on water-filled submersible pump only. This pump also belongs to electric submersible centrifugal pumps. The common feature of this category is closed water-filled submersible three-phase motor.
Water-filled submersible pump motor construction
This is certainly the prominent feature of all water filled submersible pumps. Our QS and QJ series submersible pumps both use YQS water-filled submersible motor. We manufacture the motor by ourselves. YQS motor has vertical structure. It is wet asynchronous motor. We should connect it to 3-phase power source. We have two-pole motor and four-pole motor. When a 4-pole motor works, its rotor will rotate at 1450 rpm inside the motor case. This is like a squirrel running in a cage, so you may call it squirrel cage motor.
We use polyethylene insulation nylon sleeve and water-resistant magnet wire to make the windings of the motor, so that the motor can have longer working life. As the motor of water-filled submersible pump is cooled by water, before starting up the pump, you must fill the motor with water. And please remember to use clean water and never use dirty water. This is very important. If you forget to add water, it will be easy for the motor to burn out when it starts to work.
Function of water in the motor of water-filled submersible pump
When the motor runs at high speed, it will produce heat. The water inside not only helps to cool the motor to prevent accumulation of heat, but also helps to lubricate the bearing. We have sealed the motor with framework oil to avoid leakage of water, but even if the motor seal leaks, it will not pollute water source. Therefore, we take water filled submersible pump as environmental friendly pump.
We have made a hole on the bottom valve of the motor. When the temperature drops sharply in winter, the water inside will freeze. If the water filled submersible pump doesn’t need to run in winter, we suggest you to drain water out through the hole. We have given more detailed instruction about the operation of water-filled motor of submersible pumps in our product User Manual.
Water-filled submersible pump for sale
The water-filled submersible pumps we produce are designed to pump mild underground water. They can work in boreholes, rivers, lakes and ponds to pump well water, river water and lake water, etc. Our water-filled submersible pump for sale includes QS water filled submersible pump, QSR high temperature water filled submersible pump, QSH mixed flow submersible pump, QSZ axial flow submersible pump, QJ deep well submersible pump as well as QSP submersible pump for fountain. Besides, we also have a water-filled submersible pump for sewage water: WQS series submersible waste water pump.
If you want a small and economic submersible well pump, QS would be your best choice. This single stage submersible pump is compact, cheap and small, suitable for applications where people need small flow quantity and low head. We developed QSR high temperature type on the basis of QS. QS is used only for water at room temperature, lower than 95℉ or 35 ℃ to be specific. But QSR can be used for very hot water, max temperature 176℉ or 80℃. We designed QSP specially for fountains, such as music fountain and fog fountain. QSH and QSZ are multistage submersible pumps for industrial and commercial uses. We have introduced each of these models in full detail in their own pages separately.
About the manufacturer of water-filled submersible pump
APK Pump is one of the largest water-filled submersible pump manufacturers in the central of China. Our factory has more than 300 sets of casting, processing and casting equipment. With the development of our business, we have set up submersible well pump production bases in Sinkiang in 2012 and Jiangsu in 2013. Chinese Agricultural Department has granted APK Pump the title of First Grade Enterprise.
If you want to know more about our submersible pump price, types, pump head, motor power and other information, please leave a message below. It has always been our pleasure to help our clients with water filled submersible pump price and model selection.