Submersible pumps are intended to serve the purpose like any other pumps and that is to transfer fluids from one point to another. But one prime factor that sets submersible pumps apart from other types of pumps is their orientation of installation.

These pumps are completely submerged in the liquid which is supposedly needed to be pumped out. Because of this nature of orientation, these perform exceptionally in pumping out rainwater, flooded areas, etc.

Submersible pumps are popular and they come in different models. There are many high-quality submersible pumps around the world and we at Dutco Tennant LLC are proud to partner with Ebara pumps to offer our clients a wide range of pump solutions.

In this guide, we are going to explore some of the key aspects of submersible pumps to help you make a choice for the right one. Read till the end to find out everything important about submersible pumps.

The Origin & Journey Of Submersible Pumps

It was in 1916 that the first submersible pump was designed and used by an oil distribution system engineer named Armais Artunoff. However, the usage of these pumps didn’t become successful until it was 1928.

With the help of Artunoff’s friend Frank Phillips, who was the head of Phillips Petroleum Company, the use of submersible pumps became fruitful in the oil industry. Over the next decade, the design of the pump was commercialised and widely used in the Oil sector.

As per some reports, submersible pumps were part of approximately 2% of oil pump stations in the United States by the time it was 1938. But it was not only the design of Artunoff’s submersible pump design that came into existence. Right after a year he invented the design, another entity named Pleuger Pumps introduced the design of a submersible turbine pump.

This pump design paved the way for the modern multi-stage submersible pump, revolutionising the industry. Its outstanding performance and reliability quickly gained widespread acceptance across various sectors.

Eventually, over the next several decades, submersible pumps became more advanced and they were used in more than one industry. Today, the use of this type of pumps can be found in versatile industry applications including water treatment, chemical, pharmaceutical, etc.

Primary Parts Of A Standard Submersible Pump

A standard submersible pump functions with the help of a few key parts that make up the design of this pump. However, a few of the parts can be added to make the pumps more suitable for a specific application. Below are the main parts of a typical submersible pump -

Multistage Centrifugal Pump

This part comprises two elements - impellers and the diffusers. The impellers are rotating whereas the diffusers are the stationary part of the pump. Each stage of the pump tends to deliver a relatively reduced pressure or lift due to the limited diameter of the well.

This is why multiple stages are amalgamated to ensure high pressure performance can be achieved. Now, depending on how the pump shall handle the axial thrust, there are two types of impellers - floated and fixed impeller pumps.

While the floated impellers have free movement, the fixed impeller is permanently fitted to the shaft and cannot move independently.

Electric Motor

Next up is the electric motor that is responsible for powering the submersible pump. The motor has to go through several stages to create ample pressure that enables the pump to lift the liquid to the surface.

The motor’s size and its horsepower are two factors determining the number of stages that the motor has to go through. Now, a key thing to note about submersible pumps is that the motor when operated generates heat like any other pump. However, this pump prevents the motor from overheating by drawing fluids from its surroundings.

Power Cable

A specialised power cable is used to pass the power from the surface to the motor of the submersible pump. This cable is not for handling any weight and is commonly secured to the production tubing that runs along from the wellhead to the submersible pump unit.

This power cable is engineered with three-phase electrical wires and is designed to handle straining conditions inside the area where it is installed. Any mechanical or electrical stress is tackled with the help of robust outer covering of the power cable.

Other parts of a submersible pump include sensors, controllers, sealing section and more. We at Dutco Tennant LLC have Ebara pumps-processes & manufacturing factory and for other applications that have specialised parts to tackle the nature of varied fluids required to be pumped.

The Working Mechanism Of A Submersible Pump

The submersible pump comes with a suction grid found at the bottom. This grid pulls the fluid from the surface and surrounding directly to the pump. The fluid then passes through the body of the pump and is transported to the execution point.

The execution point has a discharge tube or hose connected for seamless drainage of the fluid that was drawn in. Depending on the pump model, it can be completely or partially submerged in the liquid. 

The submersion helps in cooling down the motor. On the contrary, if the submersible pumps are dry and not submerged partially or fully then it can damage.

The Ultimate Advantages Of Using Submersible Pumps

If you’re wondering why you should go with Submersible Pumps over other types of pumps then these perks will give you the answer. Here are some of the ultimate benefits that you get from using  high-quality pumps like our Ebara pumps-municipal wastewater and other applications.

No Requirement for Priming

Submersible pumps are self-priming which means it eliminates the requirement for manual priming. As they are installed and used below the fluid’s surface, this results in them being operational without undergoing any extra steps.

Minimised Cavitation

Cavitation is a concern that can potentially damage the fluid flow system. Now unlike centrifugal pumps and other types of positive displacement pumps, the submersible pumps remain under the fluid’s surface. This can result in reduced risk of getting cavitation.

Noise Reduction

Due to their submerged operations, the submersible pumps generate reduced noise compared to other types of pumps. The submersion helps to absorb the noise offering a silent operation.

Improved Efficiency

Submersible pumps have the added advantage of head pressure of the fluid on the suction end. This ensures that energy needed for liquid intake is lesser, therefore, leading to an overall improved efficiency.

Space-Saving Design

Submersible pumps are the perfect choice for systems where there is limited area for installation. Because of its space-saving design, there is no requirement for any above-ground infrastructure.

With so many benefits to offers, it only makes sense that submersible pumps are popular and in demand.

Common Application Areas of Submersible Pumps

Submersible Pumps are extremely versatile and their endless list of features add more value to them. They are reliable and deliver robust performance even in harsh environment conditions. Furthermore, they offer impressive corrosion resistance operations. 

All of these makes them a preferred choice for a variety of industrial system applications. Some of the common application areas are -

Sewage Treatment

Sewage Treatment Plants produce by-products that constitute semi-liquid, liquid and solid materials. The use of submersible pumps such as grinder pumps operate effectively to transport such materials.

These pumps are designed to transfer materials from one point to another without any obstruction or clogging. Submersible pumps like grinder pumps have specialised parts that turn solids and semi-solids into smaller particles for easy handling and transfer.

Wastewater Systems

The use of submersible pumps is widely observed in the wastewater industry. In fact, we at Dutco Tennant LLC supply Ebara Pumps-municipal wastewater plants. 

It is common to use submersible pumps in lift and pump stations of wastewater system plants due to their compact built and cost-effective pricing compared to other pump types.

Flood-Stricken or Sump Areas

Submersible pumps are a perfect fit to drain water from flood-stricken or sump areas. As they can be installed in submerged settings, these areas are perfect for drawing out water from such regions.

Wells

Another application area where submersible pumps are widely used are wells. Whether it is water wells, boreholes or oil wells, these pumps can draw out fluids from deep wells to the surface.

The oil and gas industry uses electric submersible pumps to carry out the function of pulling fluids from the wells to the surface and transfer them to the discharge point.

There are many more applications where submersible pumps are utilised.

Conclusion

Submersible pumps are versatile, efficient and durable. They serve the purpose of transferring fluids from one area to the other without encountering much damage.

We at Dutco Tennant LLC offer high-quality submersible pumps from our trusted partner Ebara Pumps. If you are in search of this type of pumping solution then be sure to check out our vast catalogue. Explore and choose pumps to meet your system needs.