
Submersible Pumps For Clean Water
Taizhou Sunlight Electric Machinery & Pump Industry CO.,Ltd was established in 1995 , which specialized in research, development and manufaturing peripheral pump,centrifugal pump,Jet pump,submersible pump,deep well submersible pump,booster pump , air compressor &mold etcs.Construction area 50,000 square meters ,300 employees ,Sale 900,000 pcs all kinds of water pump &150,000pcs air compressor in 2022.
Why Choose Us
Our factory
Construction area 50,000 square meters ,300 employees ,Sale 900,000 pcs all kinds of water pump &150,000pcs air compressor in 2022.
Our certification
Our company has past management system authentication ISO9001-2015,produts have won the CE certification,CCC authentication.
Sales market
The products are far sold to countries such as South America,Eastern Europe,Asia etc market.
Our products
We manufaturing peripheral pump,centrifugal pump,Jet pump,submersible pump,deep well submersible pump,booster pump , air compressor &mold etcs.
Submersible Pumps For Clean Water
What is Submersible Pumps For Clean Water
A submersible pump (or electric submersible pump (ESP) is a device which has a hermetically sealed motor close-coupled to the pump body. The whole assembly is submerged in the fluid to be pumped. The main advantage of this type of pump is that it prevents pump cavitation, a problem associated with a high elevation difference between the pump and the fluid surface. Submersible pumps push fluid to the surface, rather than jet pumps, which create a vacuum and rely upon atmospheric pressure. Submersibles use pressurized fluid from the surface to drive a hydraulic motor downhole, rather than an electric motor, and are used in heavy oil applications with heated water as the motive fluid.
Water pumps: Manufacturers design water pumps only to collect and move water, leaving behind any particles or contaminants found in silt or other sources. Wells commonly use these types of submersible pumps, allowing them to provide people with safe water.
Dewatering pumps: Opposite water pumps, this pump type removes water from areas without proper drainage. They are common in crop fields and construction sites where too much water can damage goods or slow down processes.
Sump pumps: Sump pumps have the same function as a dewatering pump but have a different configuration and design, making them a unique category. You will see them used in homes and businesses, primarily where it floods often.
Sewage pumps: Sewage pumps have a specialized design meant to help them accommodate larger water waste particles. You can find various sizes in this category to help cater to different types of waste removal processes and purposes.
Wastewater
Submersible pumps are widely used in the grit and wastewater industry. They are often used in pump and lift stations because they are compact and are less costly to install than other pumps.
Sewage treatment
This application requires submersible pumps, such as grinder pumps, that can transport solid material without obstruction from pump inlet to discharge. These pumps often reduce sewage material to particles for easier handling and downstream treatment.
Sump pumping
Submersible pumps are often used to remove water that has accumulated in a low-lying area or pit where water can collect. An example is removing tailings ponds from mining operations or removing water from the basement of a building due to flooding.
Dredging
Port authorities choose these units to dredge harbors. They have to be specially designed to handle liquids with high solid content.
Wells
Water wells and boreholes employ these pumps to lift water to the surface. The oil and gas industry uses ESP submersible pumps extensively to lift oil to the surface from deep wells.
Mining
Mines use ESP submersible pumps that are designed differently from those used in the oil and gas industry. They have to contend with severe conditions because mine water is highly acidic and carries suspended solids.
Oil and gas
Many submersible pumps in the oil and gas industry operate according to the Electric Submersible Pumping (ESP) principle. This is a cost-effective method of lifting large volumes of fluids from deep wells. The motors used in an ESP system are designed to operate under high temperatures and pressures. They require special electricity cables and can be expensive to run.
Components of Submersible Pumps For Clean Water
Motor
The motor is the heart of a submersible pump, converting electrical energy into mechanical force for propulsion. It's typically sealed and oil-filled to safeguard against water intrusion. Regular motor inspections are essential to maintain peak performance and prevent overheating.
Impeller
The impeller generates the necessary pressure to move water through the pump with its swiftly spinning curved blades. Damage or clogs can hinder its efficiency. Routine inspections and cleaning are vital for impeller maintenance. Also, take steps to prevent pump cavitation, which can harm the impeller and other components.
Discharge pipe
An integral part of the submersible pumps, the discharge pipe conveys water from the pump to its destination. Made of PVC or polyethylene, its diameter affects flow rate and pressure. Periodic inspections are crucial to detect corrosion or damage, ensuring uninterrupted water flow and proper support to prevent bending or sagging.
Control panel
The control panel manages the submersible pumps operation. Regularly check for loose connections or damage while maintaining cleanliness and dry conditions to avoid electrical issues.
Check valve
To prevent water backflow when the pump is off, the check valve should be inspected regularly for functionality. Clean or replace it if obstructions or damage occur.
Easy tie adapters
These adapters secure the power cables and discharge pipe. Ensure their firm attachment to prevent loose connections. Regular inspections are essential to detect wear or damage, ensuring a reliable connection.
Clamps
Clamps serve the purpose of securing the submersible pump's power cables and discharge pipe to prevent any unintended loosening. It's important to conduct routine inspections of these clamps to confirm their tight and secure fit. If any clamps appear damaged or worn, promptly replace them to uphold a stable and dependable connection.
Heat shrink splice kits
Used for electrical connections, heat shrink splice kits should be checked periodically to ensure proper sealing and damage prevention. Replacement is necessary for any worn-out or damaged kits to prevent electrical problems.
Torque arrestor
This mechanism prevents the pump from twisting during operation, enhancing stability and longevity. Regular inspections are crucial to identify damage or wear, with replacements done as needed to maintain stability.
Safety rope
The safety rope facilitates pump retrieval from wells or boreholes. Ensure a secure attachment to the pump and check regularly for signs of fraying or weakening. Replacement, if necessary, guarantees safe and efficient pump retrieval.
Process of Submersible Pumps For Clean Water




Inspect the tank & well
Whether you are installing the submersible pump in your water tank or inside the well – begin with a thorough inspection process. Firstly, determine the depth of your water tank. It will help you measure the distance from the water level to the tank's bottom. Remember, you have to submerge the pump underwater to ensure maximum pressure. If the depth doesn't seem enough, fill the tank with more water before you start the installation process.
At the same time, look for external damage, especially if your tank gets direct sun exposure. You can identify the parts that need cementing, closing doors for any leakages in the future. If you have a well, call an expert to inspect its condition. If they give a green signal, you can take the installation process to the next step.
Oversee supplying components
It is time to get your hands on the submersible water pump because the tank is ready. Before starting the assembling process, check all the details about the submersible motor. From its power supply ratings, configuration to the length of wires – you should have all supplying components together. Likewise, oversee all supplies that come with submersible water pumps to make sure nothing is missing. It will help you identify if the motor needs single, two, three-phase configurations, or it will work with a starter box.
Alongside this, inspect the drop cable to ensure it works with the motor and motor cable. Likewise, it should have correct rates to submerge into the water without any technical problems. You can also check out the fittings since they need to match the bore cap and main outlet. It might seem like a no-brainer, but many people forget when they are in a rush. Inspecting components lets them overcome mechanical problems quickly, and investing in high-quality products ensures your pump lasts a long time.
Fit the pump
Next up, you have to fix the motor to the pump by only using supplied grease. It acts as a sealant, preventing access to water and other incompressible materials inside the engine. Once you start fitting the motor, it will cause a repeated twisting force that would twist the pipe fittings tighter. Simultaneously, the process would also begin wrapping the wires, which will eventually break. You can readily fix this with a torque arrestor. It is a rubber clamped on top of the pump that makes sure the wires don't swing or rotate.
Moreover, it also protects your wires from damage, increasing the lifespan of your pump. Nevertheless, don't rush over this procedure; take your time and smoothly fit the motor inside the pump. Seal the splining shaft during the assembling process by laying the flat fitting with tape. You can also screw it into the submersible pump if adjusting it is infeasible.
Connect the cables
The submersible pump comes with a cable that you can't connect with the socket. Instead, you have to join or splice it to the motor and confirm that it is watertight. At this point, mind following the instructions rigorously to leave no room for mistakes and errors. Start with making the splice since you will have to connect multiple wires. Either make it by heat shrinking the splicing kit or purchase one. After this, familiarize yourself with the black pipes.
Use a propane torch to heat the pipes and soften them before you fasten the screws. It will make the lines watertight while ensuring the entire system is waterproof. Since you are working with submersible pumps, use stainless steel clamps as they are worth the extra cash. Alongside maintaining the efficiency of the motor, it maximizes water pressure.
Waterproof the cables
Usually, submersible pumps come with 3-core PVC cable. You have to connect one end to the motor and the other to the control panel. And as one end would be inside water, you have to waterproof the cable to eliminate every threat of electric currents. Encase the wires with self-sealing heat-shrink tubing. It is a shrinkable plastic tube that insulates wires, provides abrasion, and protects cables from damage. If you can't find a self-sealing one, consider sealing it yourself.
Use a wrap with the heat-shrink tubing and create a moisture-resistant seal. Start applying it like tape around the wires and gently slide the tubing over the wrap. As soon as you heat the tubing, the wrap will melt automatically, sealing the cables correctly. This step might seem lengthy, but it is imperative for the smooth functioning of the pump.
Check the direction of rotation
Once the wiring process is complete, check if the motor shaft rotation direction aligns with the cable box's direction. Sometimes, rotation is counterclockwise when seen from a motor shaft, but different when examined manually. Connect the ends of the wires to energize the motor for a few seconds. Keep pouring fresh water over the sand guard to avoid heat generation and check the direction of rotation.
If the direction is different from the marking on the cable box, make a few adjustments. Firstly, interchange the two leading wires from the control panels, and try again. However, if the direction is the same as the cable box mentioned, you can readily jump to the next step.
Install check valves
If the submersible pump is in place, start checking the valves to monitor the water flow. It boosts the reliability of the water well system while combating all inadequate supply issues. Therefore, if valves are not present, install a couple of them into the intake line. It would prevent the water from flowing back down into the tank when the pump is not running. Thus, it would ensure consistent water pressure without physically straining the pump.
Moreover, the check valves provide immediate water flow into the pressure tank right after the pump starts. It means homeowners won't have to wait for hours to fill the rest of the tanks, speeding up the entire process. Although they make a little noise while operating, don't think of omitting a check valve. Place it next to the water pipe that enters your house. Otherwise, somewhere in the middle of the water tank and tube to keep it accessible for servicing and replacement.
Connect the power supply & test
Now, it is time to run a final test of the pump. Use a control panel and start the submersible pump. These are a few things you have to monitor.
A: See if the contractors of sufficient current ratings are working or need higher ones.
B: Inspect your home's voltage to determine under or over voltage beforehand. Sometimes, the pump requires high frequency, which disrupts the wiring.
C: You have to take measures for phase failure, especially if you live in one or two-phase units.
D: Dry run the water tank and check if there are any issues of motor heat up.
How to Maintain Submersible Pumps For Clean Water
Prevent dry run situations
Protect submersible pumps by installing well-level monitoring systems or low water level cutoff switches. These mechanisms detect low water levels and automatically shut off the pump. Thus, this prevents dry run situations. Avoiding dry runs ensures the pump remains lubricated and cooled.
Inspect the motor
Examine the motor's exterior for any physical damage or signs of moisture ingress. Additionally, monitor the motor's temperature during operation to ensure it stays within the recommended range. During the inspection, check for any loose or damaged wiring connections, signs of corrosion, or unusual noises coming from the motor. If you find any unwanted noise, stop operating the pump and schedule a quick service and repair.
Ensure there is no overheating
Although the pump is submerged in the water, it may overheat. Therefore, make it a part of the submersible pump maintenance plan. Excessive heat can cause damage to the motor and other components, leading to pump failure. To prevent overheating, ensure proper ventilation around the pump motor, allowing for adequate airflow. Monitor the motor's temperature regularly during operation and address any signs of overheating promptly.
Replace seals and hose when required
Over time, seals and hoses made of silicon or rubber may deteriorate, become worn, or develop cracks. This compromises their ability to create a watertight seal. It can also result in water leakage, reduced pump efficiency, and potential damage to surrounding components. To prevent these issues, regularly check the condition of seals and hoses and replace them when necessary.
Operate the pump at BEP
The BEP represents the ideal operating point where the pump achieves its highest efficiency while delivering the desired flow rate and pressure. Operating a submersible well pump below the BEP may cause cavitation, while operating above the BEP can lead to excessive strain on the motor and components. To ensure optimal performance, adjust the pump's operating conditions, such as speed or impeller size, to align with the BEP.
Use coatings on the pumps
Applying coatings to submersible pumps can provide an additional layer of protection against various environmental factors and extend their lifespan. Coatings, such as corrosion-resistant coatings, help safeguard the pump against corrosion, abrasion, and chemical damage. These coatings create a barrier that shields the pump's surfaces from the corrosive effects of water or chemicals.
Voltage stabilization
Protect submersible pumps from voltage fluctuations by installing stabilizers or surge protectors. Stable and consistent power supply prevents electrical stress and potential damage to the motor or other electrical components. Voltage stabilization enhances the longevity of the pump.
Conduct professional inspection
A routine professional inspection is important apart from your own maintenance. Consider qualified professionals or manufacturer-approved service centers for major repairs, modifications, or troubleshooting. Attempting to fix complex issues without expertise may make warranties invalid and further damage the pump.

The working of the submersible pump is a little bit different than a jet pump. Because jet pumps transfer the fluid by pulling it while submersible pumps transfer the fluid by pushing it. A submersible water pump is a machine that is linked with a completely sealed motor. It is a type of centrifugal pump. Therefore, its working is very similar to other types of centrifugal pumps. Submersible pumps submerge entirely in the water. During the working of the submersible water pump, it pushes the water toward the surface. As the water of well or reservoir enters into the pump by the foot valve, it strikes the impeller. An impeller is a rotatory unit that has multiple fixed blades. This impeller is connected with an electric motor through a shaft. The impeller rotates with the rotation of the shaft. As the water strikes the blades of the impeller, the blades convert the water kinetic energy into speed and increase the speed of the water. After passing through the impeller, the water enters into the diffuser, which further transforms the speed of the water into pressure energy. In this way, the diffuser increases desired pressure of the water; after that, pressurized water discharges through the outlet valve of the pump. In this way, submersible pumps push the water towards the surface.
Buying a Submersible Pump: Four Tips
If you are looking for a submersible pump and want to make sure it is worth the investment, the following four tips may come in handy for determining the best model:
Check pump capacity. One pump may have a capacity of 7,500 litres per hour, while another one is able to process 18,000 litres per hour. Ask yourself what capacity you require, and look for a pump with this capacity.
Check the delivery head. The delivery head refers to the maximum height at which a pump can raise water. Some pumps have a delivery head of eight metres, while others have one of five metres. Check again what you need, and find a pump that meets your requirements.
Consider whether the pump needs to switch on and off automatically. This is done with a float. In automatic mode, pumps are not capable of pumping a surface completely dry. This is only possible in manual mode, and you need to switch it off in time.
Check which accessories are supplied with the pump. Some pumps are more user friendly than others, simply because they come with more accessories. If you consider ease of handling very important, we advise you to check which accessories are standard with the pump.
Our company has past management system authentication ISO9001-2015 and carries out the operation strictly according to the ISO9001 quality control system standard and focus on details of each quality.

FAQ
Hot Tags: submersible pumps for clean water, China submersible pumps for clean water manufacturers, suppliers, factory, deep well submersible pump for air conditioners, deep well submersible pump for rural areas, deep well submersible pump for dirty water, deep well submersible pump for energy saving, submersible pumps for clean water, deep well submersible pump for hard water
You Might Also Like
Send Inquiry




