The Surprising Things about Submersible Pumps

Posted on Jul 2, 2020

Submersible Pump

Submersible pumps are so named because they are intended for immersion in liquids. Sometimes submersible pumps are called "electric submersible pumps" or "ESPs". Because they must be submerged, they are not subject to pump cavitation, which occurs when there is a large height difference between the fluid surface and the pump.

Submersible water pumps are more efficient and require less power than jet pumps because they push water to the surface instead of pulling it. Submersible pumps have a hermetically sealed motor in the pump housing. This ensures that water never touches the electrical component.

Uses for Submersible Pumps

Popular applications of submersible pumps
Submersible pumps are most often used at home to pump water from the basement. However, they are used for many industrial applications.

Sewage pumping
Submersible pumps are efficient for pumping out septic tanks. The fluid is transferred to hoses to storage tanks and transported to the processing plant.

Industrial pumping
Submersible pumps are often used to pump excess water from workplaces or flooded basements on construction sites. They can also be used to pump suspensions.

Oil industry
Submersible water pumps can be used in inland or offshore oil wells to pump oil from the ground to treatment and maintenance plants.

Deep Well Drilling / Borehole Pumps
If you need to drill deep into your home, a submersible drilling pump is a great solution. Borehole pumps can pump water from great depths to tanks and homes.

Irrigation systems
Submersible pumps can be used to supply water to the irrigation system. They can be used in series for industrial and agricultural irrigation.
A submersible pump also called an electric submersible pump, is a pump that can be completely submerged in water. The motor is hermetically closed and tightly connected to the pump body.

A submersible water pump pushes water onto the surface, converting rotational energy into kinetic energy into pressure energy. This is done by drawing water into the pump: first at the inlet, where the impeller rotation pushes the water through the diffuser. From there it goes to the surface.

The main advantage of a submersible water pump is that it never needs to be primed because it is already immersed in liquid. Submersible pumps are also very efficient because they don't really have to spend a lot of energy on moving water to the pump. Water pressure pushes water into the submersible pump, thus "saving" a lot of pump energy.

In addition, although the pumps themselves are not versatile, the choice certainly is. Some submersible pumps can easily handle solids, and some are better only for liquids. Submersible pumps are quiet because they are underwater, and cavitation is never a problem because there is no "pressure jump" during the flow of water through the pump.

Submersible water pumps have several disadvantages, and two have to do with sealing. Over time, gaskets can corrode. When this happens, water enters the engine, rendering it useless until it is repaired. Also, this seal makes it difficult to get into the submersible pump repairs.

Another major disadvantage is that one pump does not suit all applications. Single-stage pumps are used for most household and light industrial pumps. This includes aquarium filters, sewage pumping, or drainage sewage pumps. Multi-stage pumps are used for everything underground, such as water or oil wells. In addition, the pumps are designed to work with thin liquids, such as water, or thick liquids, such as sewage.

Be careful with submersible pumps; they must be completely immersed. The water around the submersible pump helps to cool the engine. If used with water, it may overheat.


What is this type of pump?

A submersible water pump is defined as a hermetic, sealed motor that has been designed to provide various benefits. Typically, this pump never needs priming, because it is immersed in liquid and is thus primed. In fact, a good pump of this type is never removed from the water because it can cause complications that prevent proper operation issues.

Usually, these pumps are a great choice in many situations. For example, areas that have limited or difficult space may be a good choice for these pumps. This is because they are designed to fit a large number of areas without complications. Equally important, they can be started almost automatically, but you may need to check them from time to time to ensure proper operation.

When deciding on a good pump, this option is often one of the best you can find. This is because you can place it directly in a water source and get high-quality water pumped directly to your home, business or workplace. Before we get to the benefits of this pump - and its disadvantages - we should also talk about how it works to provide you with a better and more complete understanding.

:: Read More: How to Choose the Best Submersible Pump?

How these pumps work

A typical submersible pump works quite simply. It starts with converting rotational energy into kinetic energy by using pressure energy drawn from the pump. When the water flows through the pump, it passes through the inlet and then pushed by rotating the impeller into the diffuser. After this point, the water will then flow to the surface, where it can be properly used.

In this way, these pumps are considered a multi-stage centrifugal pump. Each of them works in a vertical position, generating high pumping power. The hydraulic motor inside the pump is often a closed cycle pump, although in some cases it can also be an open cycle. The differences between them are not so important because they both work in a very similar way.

Without thinking about the mechanical aspects, anyone interested in this pump should also remember a few other elements. First of all, the pump must be submerged at all times to ensure benefits. If it comes out of the water, it can overheat or other complications occur. Fortunately, they are usually quite small and should not be too difficult to avoid if you take the time to fully understand the full operational capabilities of this pump.

A typical submersible pump also has many different operational applications to keep in mind. For example, they can be used to drain fluids from a large field to maintain adequate water levels. They can also be used for wastewater transfer, pond filter management, and can even be used in oil wells. The types we offer are often used to pump water into wells in homes or businesses. This diverse range of processes makes them a useful tool to keep in mind when providing a service.

Advantages and disadvantages of this pump

Now that you fully understand how a submersible water pump works, you can look at its pros and cons. These notes apply to all pumps of this type and should be carefully considered before purchasing. Although the following benefits outweigh the negative ones, you should be especially careful when making major investments like this:

No need for flooding - this benefit helps make this pump one of the most accessible classes to handle and will ensure that you don't spend too much time or money on it or improvements

High efficiency - the low level of energy necessary to use this type of pump makes them very efficient and is an excellent choice for those who do not have much money

Choice option - you should be able to find a wide range of submersible options for your pumps, making them an excellent choice for those who have many applications for these units

Quiet operation - most submarines of this type are very quiet because they are underwater and because cavitation or pump pressure jumps are never a problem with this device

These benefits are significant and make this pump option an excellent choice. A few drawbacks that you need to understand are full:

Sealing corrosion - if the pump seal is corroded, water will enter the engine and may cause serious damage that is costly to repair

Some usage restrictions - although these pumps have many great applications, there are a few situations where they may not work, although they are great for water wells

Overheating potential - if the well runs out of water or is too low, the pump may overheat because the surrounding water controls the temperature

As you can see, these problems are not so problematic if you know how to prepare for them. For example, you should contact a repair technician to maintain the pump seal annually.

IMTS Exhibition

IMTS gathered worldwide Submersible Pump manufacturers into this online platform. Browse and search for your next supplier with us.

Should you run into any difficulties, please do not hesitate to contact us.

Quick Link to Suppliers

0Inquiry Item Contact IMTS

International Manufacturing Teletrading Sources (IMTS) is your key to unlock the door to the industry from anywhere around the world, at any time.