banner

Submersible Pump

Home > Products > Submersible Pump

What is Submersible Pump

 

A submersible pump is a type of water pump that is designed to operate while completely submerged in water or other liquid. The pump motor is hermetically sealed within a casing and is isolated from the liquid being pumped. This allows the pump to be operated even in deep water. Submersible pumps are commonly used in sewage and drainage systems, wells, boreholes, and aquariums. They are preferred because they do not require priming and are often more energy-efficient than surface pumps.

 
Advantages of Submersible Pump
 

 

01/

Safe

All internal components of a submersible pump stay completely sealed from the water or other foreign elements. These devices are coated to prevent corrosion resulting from staying submerged.

02/

Portable

Submersible pumps are lightweight pumping machines with a compact structure. It can be carried by one person to different places based upon a user’s requirements or pumping requirements.

03/

Priming

There is no need to prime a submersible pump since it functions below the level of the liquid that is being pumped out. Therefore, a submersible pump can be easily used and maintained.

04/

Leak Proof

A submersible pump is fitted with watertight seals and gaskets. This type of sealed structure prevents the leakage of fluid from the submersible pump. The internal components of the pump remain completely sealed which eliminates any possibility of electrical accident.

05/

Resistant to Corrosion

The materials used for the manufacturing of a submersible pump are capable of resisting corrosion. The hermetic sealing of the pump also prevents exposure to corrosive material or oxidation.

06/

Convenient Placement

The convenient placement of a submersible pump increases its efficiency since it remains submerged in water. Therefore, this type of pumping device can quickly and efficiently transfer the fluid.

 

 

 

Why Choose Us

Advanced Equipment

We take great measures to ensure that we work with the industry’s highest quality equipment and that our equipment is regularly and meticulously maintained.

Professional Team

We have a team of skilled and experienced professionals who are well-versed in the latest technology and industry standards. Our team is dedicated to ensuring that our customers get the best service and support possible.

Stainless Steel Submersible Motor Pump
Submersible Motor

Rich Experience

Has a long-standing reputation in the industry, which makes it stand out from its competitors. With over many years of experience, they have developed the skills necessary to meet their clients' needs.

Our Factory

Our factory has the advanced B-grade testing station of computer-controlled submersible motor pump, national 2-grade physical-chemical measurement and inspection center, own the only province-grade investigate institution in Shandong and own the advanced machining centre, computer center and product inspection center.

 

 
Types of Submersible Pump
 

 

Deep Well Submersible Pumps

Deep well submersible pumps are specifically designed for pumping water from deep wells, offering high efficiency and reliability even at great depths.

Oil filled Submersible Pumps

These pumps feature an oil-filled submersible pump motor type, providing excellent cooling and lubrication for the motor. They are ideal for continuous operation in demanding environments.

Dry Type Openwell Submersible Pumps

Dry-type openwell submersible pumps feature a unique design that allows the motor to operate without being submerged in water. This makes them suitable for applications where the water level fluctuates frequently.

Stainless Steel Submersible Pumps

Stainless steel submersible pumps are known for their corrosion-resistant properties, making them suitable for use in harsh environments and with aggressive fluids.

Horizontal Openwell Submersible Pumps

These pumps are designed for use in open wells, sumps, and tanks. Their horizontal orientation allows for easy installation and maintenance. Check out this buying guide to help you choose the right domestic water pump.

Openwell Submersible Pumps

Openwell submersible pumps are versatile and can be used in open wells, sumps, and tanks. They are easy to install and maintain, thanks to their submersible type pump design.

 

 
Material of Submersible Pump
 

 

Stainless steel

Stainless steel is widely used for the pump casing, impeller, and shaft due to its high strength, corrosion resistance, and durability.

Ceramic

Ceramic is used for the pump bearing and shaft due to its high resistance to wear and corrosion.

Carbon steel

Carbon steel is used for certain components such as the motor frame and stator due to its high strength and shock resistance.

Thermoplastics

Some submersible pumps use thermoplastic materials such as PVC, polypropylene, and ABS for the pump housing and impeller due to their high flexibility and chemical resistance.

Bronze and brass

These materials are used for components such as bushings and bearings due to their excellent wear resistance and corrosion resistance.

Cast iron

Cast iron is commonly used for the pump housing due to its high tensile strength and good resistance to wear and tear.

 
Application of Submersible Pump
 

 

01/

Drinking water supply

Submersible pumps are often used to provide fresh drinking water to households and communities. They can pump water from deep wells or water sources in low-lying areas.

02/

Agriculture

Submersible pumps are essential for irrigation and flood control in agriculture. They are used to pump water to fields, ensuring crops get enough moisture to grow and thrive.

03/

Sewage treatment

Submersible pumps are also used in sewage treatment plants, dredging, and other wastewater applications. They help to move wastewater from one location to another and are often used in sump pumps as well.

04/

Industrial applications

Submersible pumps are used in a variety of industrial applications, such as in mining and construction sites. They help to remove waste and excess water from these sites to prevent flooding and other hazards.

05/

Oil and Gas Industry

Submersible pumps are used in the oil and gas industry for various applications, such as pumping crude oil, gas, and water from oil wells, offshore drilling rigs, and oil storage tanks.

06/

Residential and Commercial Water Supply

Submersible pumps can be used for pumping water from wells, boreholes, underground water sources, and rainwater harvesting tanks to supply water to homes, buildings, and agricultural fields.

 

Process of Submersible Pump

 

  • The pump is first lowered into the water source, such as a well.
  • The pump is connected to a power source, typically an electrical cable that runs from the surface down to the pump.
  • The pump's motor starts, which powers the impeller.
  • The impeller draws water into the pump through its intake pipe.
  • As the impeller spins, it forces water through the pump's discharge pipe and out of the pump.
  • The water is then delivered to its destination, such as a tank, irrigation system, or other application.
  • As long as there is water in the well or source, the pump will continue to operate, drawing water into the pump and delivering it to its destination.
  • Once the water level drops below the pump's intake, a float switch or other device will shut off the pump to prevent damage due to dry running.
  • The pump can be restarted once the water level has sufficient recovered.
Submersible Sewage Pump

 

 
Maintenance Submersible Pump
 
 

Pump lubrication

Lubrication reduces friction and reduces the chances of wear and tear. It is important to keep the pumps properly lubricated; for the same, you can follow the guidelines provided by the manufacturer.

 

Checking for overheating

Even though the pump is submerged under the fluid body, it is necessary to often check if it is overheated. Overheating can be caused when the pump is not properly working or even when there is more pressure on the pump due to conditions like lack of water in the well for pumping.

 

Motor inspection

Checking the working condition of the motor is crucial. Servicing the motor from time to time increases the efficiency and working of the pump.

 

Seal and hose replacements

As the seals get eroded over time, it is advised to change them regularly. Cleaning or replacing the hoses is also important as the deposit in the inner lining can cause corrosion or hassle with the normal working of the pump.

 

Check for noise

Stop operating the motor as soon as you hear a noise, and schedule a pump repair service immediately. If the pump is making noise, there may not be enough liquid in the tank, or a component may be clogged or ineffective.

 

Regular professional checks

These checks are to be done following the scheduled checking advised by the manufacturer. The daily, weekly, monthly, and yearly protocols are to be strictly followed to have a well-functioning pump. Giving the professional care that the submersible pump deserves would save money, power, stress, and the machine itself.

 

How Do Submersible Pumps Work

 

Submersible pumps function by using an electric motor that is sealed within a waterproof housing framework. The motor is connected to an impeller. This impeller spins rapidly and creates a low-pressure zone to draw in the fluid around it.

 

The fluid is then forced out through a discharge pipe at a higher pressure. This enables it to be transported to its intended destination. These are essentially centrifugal pumps. Their hydraulic components include the impeller, pump casing and diffuser element.

 

They are flooded by the fluid which is handled. This kind of pump does not usually come with a suction line. A pump with the motor arranged above the floor is the vertical shaft submersible pump. Pumps where both the motor and hydraulic components are flooded are known as submersible motor pumps.

 

Submersible pumps have sealed and airtight motors that are close-coupled to the body of the pump. The key benefit of this kind of pump is that it helps avoid pump cavitation. This is an issue that is linked to a higher elevation difference between the fluid surface and the pump.

 

 

What Is the Minimum Water Level for a Submersible Pump

Submersible pumps operate on the basis of a minimum depth or water level. Based on estimates, they pump out water up to 15 centimeters in this regard. This is the average threshold worth noting in this case. The minimum water level should be carefully ascertained before operations, since it plays a vital role in various applications.

Submersible Motor Pump

 

When Using a Submersible Pump Keep the Following Points of Attention in Mind
 

Make sure that the temperature of the pumped liquid never exceeds the maximum. For most pumps this is 40°C, but do always check this in the manual.

 

Place the pump on a stable surface.

 

Make sure that the suction openings below the pump are not being blocked.

 

If you have a pump with a float, make sure that the float can move freely.

 

Never lift the pump pulling the electric cable or the float, but use a twine for this.

 

A submersible pump may get blocked. Therefore, you should ensure that you regularly check your pumps and clean them if necessary. A clean water pump should be checked for blocking every month and a dirty water pump should be checked every week.

 

Submersible Pump Design

 

 

Submersible pumps may be known as a sub pump or an ESP (electric submersible pump.) The pump incorporates a hermetically sealed motor that is coupled to the pump body. As the name indicated, submersible pumps are designed so that the entire assembly can be submerged into the fluid to be pumped.

The design of the submersible pump allows it to avoid problems with cavitation, a problem experienced with typical pump solutions that have a sizeable elevated difference between the pump and the liquid surface.

Submersible pumps push fluid to the surface as opposed to jet pump designs that have to pull the fluid to ground level. For this reason, submersible pumps are considered to be more efficient than jet pumps. Unlike many surface located pumps, submersible pumps also avoid the need for priming.

What Is the Difference Between a Submersible Pump and a Surface

 

There are two main categories of water pumps, submersible and surface mounted. Submersible pumps are installed under the water while surface pumps are mounted out of the water. Submersibles are usually installed below the water level in a well but can be installed in a lake, cistern or river. Surface pumps are usually mounted above the water level which requires a suction lift,the distance between the water level and the inlet of the pump. However if a water storage tank is used the water level could be above the pump creating a positive suction head. In most off grid solar water pumping applications both submersible and surface pumps can be used. the Solar submersible water pump is used to lift water from the well to a holding tank or cistern and then the surface pump can be used to pressurize the water to a house or for irrigation. The cistern provides a storage for days when the sun is not shining or for use during the night. We would recommend that a pressure tank be used in conjunction with the surface pump to avoid excessive cycling on and off of the pump.

 

Our Factory

 

Our factory has the advanced B-grade testing station of computer-controlled submersible motor pump, national 2-grade physical-chemical measurement and inspection center, own the only province-grade investigate institution in Shandong and own the advanced machining centre, computer center and product inspection center. Our factory covers an area of 150000 square meters, with 649 employees and more than 240 technicians above college level, accounting for more than 35% of the total number of employees.

 

20210514104234027fc6220c0b48b698e52f42913423ff.jpg (360×240)
202105141042386c68615cb7cb4dcdab05e6d6c50add4e.png (359×240)
20210514104248496261d943f2496087aee6af1d0d6885.jpg (360×240)
2021051410430390b5d0e752ad4bb1a279142bec943a48.jpg (360×240)
 
FAQ
 

Q: How do I safely disconnect my submersible pump?

A: Disconnect your submersible pump by turning off the power source and following the manufacturer's instructions for disconnecting the cable and wiring.

Q: Where can I use a submersible pump?

A: Submersible pumps are commonly used in construction sites, homes, farms, wells, sewage treatment plants, and for irrigation purposes.

Q: How does a submersible pump work?

A: A submersible pump works by using a motor to push or pull water, oil, or other fluids through an impeller that then propels the fluids out of the pump and into the desired location.

Q: What are the benefits of using a submersible pump?

A: Submersible pumps are quiet, efficient, and reliable. They are also easy to install and require little maintenance.

Q: What is the average lifespan of a submersible pump?

A: The average lifespan of a submersible pump is between 8-10 years, but this can vary depending on the frequency of use and the condition of the pump.

Q: What is the maximum depth that a submersible pump can be submerged?

A: The maximum depth that a submersible pump can be submerged is typically around 400 feet, although this can vary depending on the specific model.

Q: How do I choose the right submersible pump for my needs?

A: When choosing a submersible pump, consider factors such as the amount of water or other fluids that need to be moved, the depth of the well or water source, and the overall size and power of the pump.

Q: What is the difference between a shallow well and a deep well submersible pump?

A: A shallow well submersible pump is designed for wells that are less than 25 feet deep, while a deep well submersible pump is designed for wells that are over 25 feet deep.

Q: What type of maintenance is required for a submersible pump?

A: Regular maintenance for a submersible pump includes inspection of the wiring and connections, checking for any signs of damage or wear, and cleaning the impeller and motor components.

Q: How can I troubleshoot problems with my submersible pump?

A: Common problems with submersible pumps include issues with the motor, low water pressure, and leaks. Consult the manufacturer's manual or a professional technician for troubleshooting assistance.

Q: Can submersible pumps be used for sewage?

A: Submersible pumps can be used for sewage and wastewater treatment, but this requires a specific type of pump that is designed for this purpose.

Q: How do I maintain the cables and wiring to my submersible pump?

A: Regularly inspect the cables and wiring to your submersible pump for damage or wear, and clean any debris or dirt that may accumulate on the cables.

Q: How do I know if my submersible pump needs to be replaced?

A: Signs that your submersible pump may need to be replaced include reduced water pressure, strange noises coming from the pump, or leaks.

Q: How do I install a submersible pump?

A: Installation of a submersible pump should be done by a professional technician to ensure proper installation and safety.

Q: Are submersible pumps self-priming?

A: Yes, many submersible pumps are self-priming, meaning that they can start and operate automatically without the need for manual priming.

Q: Can submersible pumps be used in saltwater applications?

A: Yes, submersible pumps can be used in saltwater applications, but ensure that the pump is rated for saltwater use and meets all necessary safety standards.

Q: Can submersible pumps be used in hot water applications?

A: Yes, submersible pumps can be used in hot water applications, but ensure that the pump is rated for the temperature of the water and meets all necessary safety standards.

Q: How do I properly store a submersible pump?

A: When storing a submersible pump, ensure that it is kept in a dry, dust-free environment and that the motor is protected from damage.

Q: Can submersible pumps be used for swimming pools?

A: Yes, submersible pumps can be used for swimming pools, but ensure that the pump is rated for this type of application and meets all necessary safety standards.

Q: What is the power source for a submersible pump?

A: Submersible pumps are typically powered by electricity, but some models may also feature gas or diesel engines.

We're professional submersible pump manufacturers and suppliers in China, specialized in providing the best OEM service. Please feel free to buy high quality submersible pump for sale here from our factory. For more information, contact us now.mersible pump, Submersible Motor, Submersible Sewage Pump