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Submersible Pump

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Your Professional Submersible Pump Manufacturer
 

Zhejiang Tandi Pump Technology Co., Ltd. specializes in the production of various water pumps, including self-priming pumps, submersible pumps, centrifugal pumps, and so on. Has more than 20 years of production experience. Our pumps export all over the world and get a very high reputation from customers. We sincerely hope to strengthen cooperation with all customers. Welcome to new and old customers at home and abroad to negotiate business.

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We have a strong R&D team. We can produce about 1500 pieces per day and test them.

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Submersible Deep Well Pump 0.75hp

 

What Is Submersible Pump?

A submersible pump is a device that has a hermetically sealed motor close-coupled to the pump body. The whole assembly is submerged in the fluid to be pumped. 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.

 

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Advantages of Submersible Pump
 

Safer Than Other Types of Surface Pumps 

Submersible pumps are stored underwater. Their robust design is efficient in keeping the gaskets and seals watertight. Therefore, there is no risk of liquid or internal components leaking out.

 

Wide Range of Application

Submersible pumps are a boon for farmers today. They are highly efficient in providing water to an irrigation system. Besides, Submersible pumps are used in offshore oil wells too.

 

Low Noise

Surface pumps often cause a considerable amount of noise. However, being underwater, the sound of Submersible pumps softens, creating low noise, barely audible.

 

High Efficient

As compared to surface pumps, submersible pumps are user-friendly. These pumps can detect the water level and avoid backflow.

 

Submersible Pumps are Self-Priming

Priming a centrifugal pump requires both time and money. However, submersible pumps need no priming, which saves unnecessary time waste, cost, & hassle. 

 

Corrosion Resist 

Engineers use corrosion-resistant materials such as stainless steel to make Submersible pumps. Now, this makes them durable and long-lasting.

 

 

Submersible Pump: Everything You Need to Know!

The main feature 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. The pump shaft is connected to the gas separator or the protector by a mechanical coupling at the bottom of the pump. Fluids enter the pump through an intake screen and are lifted by the pump stages. 

Garden Irrigation Submersible Pump

 

 

Application of Submersible Pump

Submersible pumps are generally very reliable and able to operate well in harsh conditions. These are some of the main applications for these pumps:

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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.

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Sewage Treatment

This application requires submersible pumps, such as grinder pumps, that can transport solid material without obstruction from the pump inlet to discharge.

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Sump Pumping

Submersible pumps are often used to remove water that has accumulated in a low-lying area or pit where water can collect.

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Dredging

These pumps are used by port authorities to dredge a harbor. They have to be specially designed to handle liquids with high solid content.

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Mining

Mines use 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.

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Oil and Gas

Many submersible pumps in the oil and gas industry operate according to the Electric Submersible Pumping principle. This is a cost-effective method of lifting large volumes of fluids from deep wells.

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Submersible Pump: 6 Important Parts and How to Maintain Them
 

Motor

The motor is the core of a submersible pump. The motor is ordinarily hermetically sealed and oil-filled to prevent water from entering and harming the motor. To guarantee optimal performance, routinely examine the motor for any symptoms of damage or wear. Keep the motor clean and free from debris to prevent overheating.

Impeller

The impeller is responsible for providing the requisite pressure to circulate water through the pump. It consists of curved blades that spin swiftly, generating centrifugal force. The impeller might be broken or clogged, which can impair its efficacy. To maintain the impeller, it should be routinely inspected for any obstructions or damage.

Discharge Pipe

The discharge pipe is an integral component of a submersible pump that delivers water from the pump to the location of usage. It is ordinarily composed of PVC or polyethylene and is available in varying diameters and lengths. To maintain the discharge conduit, it should be frequently inspected for any symptoms of corrosion or damage.

Control Panel

The control panel allows you to start, halt, and control the functioning of the submersible pump. Familiarize yourself with the control panel’s functions and indications. Regularly inspect the control panel for any loose connections or damaged components. Keep everything spotless and dry to prevent electrical difficulties.

Check Valve

The check valve is a one-way valve that prevents water from flowing back into the pump when it is switched off. Inspect the check valve often to ensure it is functioning effectively. Clean or replace it if it becomes obstructed or damaged.

Easy Tie Adapters

Easy tie adapters are used to attach the pump’s power cables and discharge pipe. Ensure that the simple tie adapters are firmly attached to prevent any unsecured connections. Regularly examine the adapters for any indications of wear or damage. Replace them as necessary to maintain a secure and reliable connection.

 

Precautions in the use of submersible pump

 

 

Be Grounded

Submersible pump is only by taking protective grounding can you ensure personal safety during use. If there is no protective grounding, once the casing leaks, it will cause the water at the outlet of the submersible pump and the water surface of the pumping water to be charged, endangering the safety of humans and animals.

 

Install a Leakage Protector

The submersible pump works in the water, which makes it easy to leak electricity and cause electric energy loss. If the leakage protector is installed, the leakage protector will cut off the power of the submersible pump as long as the leakage value of the submersible pump exceeds the operating current value of the leakage protector.

 

The Power Supply Voltage is Abnormal

Excessively high and low voltages can cause the submersible pump to rise too high, shorten the service life, and even burn the submersible pump. Therefore, in the process of using the submersible pump, the operator must observe the power supply voltage value at any time.

 

The Motor Rotates in The Opposite Direction

With a small amount of water and a large current during reversal, long motor reversal can damage the motor windings. Therefore, before entering the water, the submersible pump should be connected to the power supply to check whether the rotation direction is correct.

 

Long-Term Overload Work

To avoid long-term overload operation of the submersible pump, do not use the low lift pump for high lift work, do not pump water with a large amount of sand (heavy mud), and observe whether the current value is within the specified range.

 

Frequent Switching

The submersible pump should not be started too frequently. This is because the submersible pump will generate recirculation when it stops. If it is turned on immediately, the motor load will start, causing the starting current to be too large.

 

Zhejiang Tandi Pump Technology Co.,Ltd

 

 

FAQ

Q: What is the difference between centrifugal and submersible water pumps?

A: A submersible pump and a centrifugal pump both rely upon the centrifugal force to pump out the water. However, they are installed at different locations due to being built in different ways. A submersible pump is installed underwater whereas a centrifugal pump is installed on the ground.

Q: What is a submersible pump suitable for?

A: Submersible pumps are found in many applications. Single stage pumps are used for drainage, sewage pumping, general industrial pumping and slurry pumping. They are also popular with Pond filters. Multiple-stage submersible pumps are typically lowered down a borehole and are most typically used for residential, commercial, municipal, and industrial water extraction (abstraction), water wells, and in oil wells. Other uses for submersible pumps include sewage treatment plants, seawater handling, fire fighting (since it is flame retardant cable), water well and deep well drilling, offshore drilling rigs, artificial lifts, mine dewatering, and irrigation systems.

Q: Is a submersible pump a centrifugal pump?

A: Yes, a submersible pump is a type of centrifugal pump. It consists of a motor and a pump assembly, both of which are sealed and submerged in the fluid being pumped. The motor drives the impeller, which creates a centrifugal force to draw in and move the fluid. This design allows for efficient pumping of liquids, even at great depths or in confined spaces.

Q: What are the characteristics of a submersible pump?

A: The pump consists of either a single-stage or multistage turbine pump depending on the required head. For pumping groundwater, a closed impeller is used. Vertical motors of small diameter are used so that they may easily be inserted inside the well pipe. Both oil- and water-lubricated motors are used.

Q: Is a submersible pump reliable?

A: Their robust design is efficient in keeping the gaskets and seals watertight. Therefore, there is no risk of liquid or internal components leaking out. Further, the structure of the submersible pumps ensures that the pump doesn't short out electricity when submerged, making it safe to use.

Q: Is a submersible pump good for home use?

A: Yes, a submersible pump can be a good option for home use in certain situations. They are commonly used for applications such as draining flooded basements, emptying swimming pools, and pumping water from wells or underground storage tanks. Submersible pumps are designed to be submerged in the liquid being pumped, which allows for efficient and quiet operation. They are typically more reliable and long-lasting compared to other types of pumps, and they require minimal maintenance. However, it is important to ensure that the specific submersible pump you choose is suitable for the intended application and meets the requirements of your home’s plumbing system.

Q: Is a submersible pump AC or DC?

A: AC Solar Submersible Pumpset uses alternating current as their power source, which is available on almost every power grid. An inverter can also be used in a situation where the power source is DC. DC Solar Submersible Pumpset, on the other hand, requires Direct Current to operate, which is derived from solar panels.

Q: What type of motor is used in the submersible pump?

A: The motor used in a submersible pump is typically an electric motor. These motors are specially designed to be submerged in water and operate efficiently in that environment. Submersible pump motors are sealed and insulated to prevent water from entering and causing damage. They are often made with materials such as stainless steel or cast iron to resist corrosion. The motor is typically hermetically sealed to ensure no water enters the motor housing. Additionally, submersible pump motors may have features such as built-in thermal protection to prevent overheating and automatic shut-off mechanisms for safety purposes.

Q: Can a submersible pump run without water?

A: The dry running of the pump can damage the mechanical seal and the motor. For this reason, the float switches should be arranged so that the fill level in the shaft does not fall below the minimum level required to operate the pump.

Q: How many hours can a submersible pump run continuously?

A: Submersible pumps are generally designed for continuous operation, making it acceptable to run them for 24 hours. Check the pump's specifications to ensure it is suitable for continuous use. Keep the pump submerged in water for cooling, consider power consumption, and perform regular maintenance.

Q: What is the difference between a submersible pump and a sump pump?

A: Unlike sump pumps, submersible sump pumps run while being “submerged” underwater, so they are placed in a deeper sump pit. If you are comparing the advantages of sump vs submersible sump pumps, a submersible pump is designed to make less noise because it operates beneath the water.

Q: What are the components of a submersible pump?

A: A submersible pump generally consists of the following components: Motor: The electric motor is the main component of the submersible pump. It is responsible for driving the impeller that creates the pumping action. Impeller: The impeller is a rotating component within the pump that creates suction and generates pressure to move the liquid. It is typically made of stainless steel or another durable material. Pump housing: The pump housing, also known as the volute, is the outer casing that encloses the impeller. It helps direct the flow of water and provides structural support to the pump. Intake screen: Located at the bottom of the pump, the intake screen prevents large debris or solids from entering the pump and clogging the impeller. Discharge pipe: The discharge pipe is connected to the pump outlet and carries the pumped liquid away from the pump to the desired location. Control box: In some submersible pumps, a control box is used to house electrical components and control the operation of the pump. This includes features like on/off switches, overload protection, and sometimes, control panels for more advanced monitoring and control. Power cable: A submersible pump is powered by electricity, and it requires a power cable to connect the pump to a power source. The power cable is specially designed to be submerged in water and insulated to prevent electrical hazards. Shaft: The shaft connects the impeller to the motor and transfers the rotational motion from the motor to the impeller.

Q: What are the electrical requirements for a submersible pump?

A: A 1 HP submersible well pump will require a 2.5 KW internally regulated generator to operate the pump. A 30 amp breaker means the pump is smaller than 2 hp will use ~13 amps/2300 watts during operation and will require a 4 KW internally regulated generator to operate the pump.

Q: What is the difference between a compressor pump and a submersible pump?

A: A compressor pump and a submersible pump are two different types of pumps designed for different purposes: Function: Compressor Pump: A compressor pump is used to compress gases, typically air or other gases, to increase their pressure for various applications such as powering pneumatic tools, filling compressed air tanks, or operating HVAC systems. Submersible Pump: A submersible pump is used to pump liquids, such as water or sewage, from one location to another. It is typically used in applications like well pumping, drainage, irrigation, or wastewater treatment. Design: Compressor Pump: A compressor pump typically consists of a motor that drives a piston or a diaphragm to compress the gas. It generally has intake and discharge ports for gas flow. Submersible Pump: A submersible pump usually consists of a motor that drives an impeller to create suction and generate pressure to move the liquid. It typically has an intake screen at the bottom and a discharge pipe at the top to direct the liquid flow.

Q: Do submersible pumps get hot?

A: Yes. The motor relies on flowing water for cooling. If the water is stagnant or absent, it will overheat. The motor is below the pump intake, so you should always try to design your well so that the water is flowing up to the intake, providing a continuous flow of cooling water over the motor.

Q: Do submersible pumps use a lot of electricity?

A: The electricity consumption of a submersible pump depends on factors such as its power rating, size and capacity, duty cycle, efficiency, and operating conditions. Larger pumps with higher flow rates and continuous operation may consume more electricity. However, submersible pumps are generally designed to be energy-efficient.

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

A: The life expectancy of the submersible pump depends on different factors, such as quality, electrical supply/voltage of the pump, and for how many hours it will be used. On average, for a residential 3-wire submersible pump, the shelf-life is 10-15 years, and for a 2-wire pump, it's 8-13 years.

Q: How deep can a submersible pump work?

A: Every submersible pump has a maximum immersion depth (also called opvoerhoogte ). This is the maximum depth to place the pump, without it ceasing operation. For most pumps, this is seven meters, but some pumps go deeper or less deep. This is dependent on the discharge pressure of the pump.

Q: Can I run the submersible pump on the inverter?

A: Yes, it is possible to run a submersible pump on an inverter. However, several factors need to be considered. Firstly, the inverter must have sufficient capacity to handle the power requirements of the pump, including its startup surge current. Secondly, it is recommended to use a pure sine wave inverter as it provides a better and more efficient output for submersible pumps. Additionally, proper wiring and installation, according to electrical safety regulations, are crucial. It is advisable to consult with a qualified electrician to ensure a safe and compatible setup. Running a submersible pump on an inverter can provide benefits such as backup power during outages or using renewable energy sources.

Q: Can you leave a submersible pump on all night?

A: The fluid being pumped works as the coolant and ensures that the motor remains cool during the entire operation. Submersible pumps are highly durable and efficient; can work for extended durations if is the need of the hour. A standard of 8-10 hours of use is ideal.

 

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Submersible Lake Irrigation Pump, Vertical Deep Well Pump, Centrifugal Submersible Drainage Pump