Provide several types of submersible pumps and sewage treatment solutions from TUOHAI.
We provide submersible axial flow pumps, sewage pumps, submersible mixers, sewage grinders, pumping stations, and their control system, etc.
Let TUOHAI help you achieve business success.
You can get submersible axial flow pumps, submersible sewage pumps, and other types of submersible pumps with voltages from 380v to 10kv from Tuohai. The maximum outlet can reach 1400mm, and it is available in cast iron and stainless steel.
We have an advanced submersible pump test system, which can test submersible pumps with a maximum water outlet of 2000mm and 1000kw maximum power.
Tuohai can also provide free pre-sale design and after-sale installation services.
Tuohai has a domestic first-class pump testing system, which can test various submersible pumps, including submersible axial flow pumps, submersible sewage pumps, etc.
The maximum test power of our pump test system is 1000KW, the test voltage is 380V, 660V, 3KV, 6KV, 10KV, and the maximum test diameter is 2 meters.
Tuohai can send workers to the customer's location to assist in the installation, and you can also send technicians to our factory to observe the installation demonstration of the submersible pumps.
In addition, Tuohai also provides 7*24 hours of after-sales service.
Submersible pumps do not need to build a special pump house, which reduces the engineering cost of the pump station by 30% and greatly reduces the cost.
Submersible pumps will not occupy ground space, and it is more suitable to use them near irregular or narrow rivers or buildings.
If there are residents living near the pump station, in order to minimize noise, submersible pumps are also suitable.
In addition, in some scenic spots or parks, the submersible pumps will not affect or damage the surrounding environment.
The submersible pump does not need to build the additional pump house, which can save a lot of engineering costs, does not occupy surface space, there is no impact on the surrounding environment.
Submersible pumps are lubricated and cooled by water, so installation and maintenance are very simple.
Because the submersible pump runs underwater, the noise generated by it is much lower than that of other dry-type pumps, and it will not cause noise pollution to the surrounding residents.
The electric motor and the water pump are integrated without a long driveshaft, which is light in weight and small in space.
The submersible axial flow pump is low flow and high head
The submersible sewage pump is low flow and high head
If you need a high-pressure pump, you can choose a submersible sewage pump
Tuohai can provide you with high-quality submersible sewage pumps
Submersible pumps include submersible axial flow pumps, submersible mixed flow pumps, submersible sewage pumps, etc.
Tuohai can provide the vertical type and horizontal type submersible axial flow pumps, vertical type, and horizontal type submersible mixed flow pumps, submersible sewage pumps, submersible tube pumps, and other submersible pumps for customers to choose from.
In simple terms, the number of stages of a submersible pump refers to the number of impellers that the submersible pump has.
If there is only one impeller inside the submersible pump, it is called a single-stage pump, and the number of stages is 1.
The number of stages above 2 is called multi-stage submersible pump, for example, 3 stages submersible pump mean that there are 3 impellers.
Generally, the larger the number of stages, the higher the head.
The flow rate of the submersible pump is affected by many factors such as power, head, and outlet size.
Generally speaking, the flow of submersible mixed-flow pumps is relatively large, which can reach more than 40,000m³/h.
The 1400QZ series submersible axial flow pump from Tuohai has a power of 560KW and a maximum flow rate of 43000m³/h.
Different submersible pumps have different uses and characteristics.
The submersible axial flow pump has a larger flow rate but a low head. It is the best choice for river flood control, urban drainage, irrigation, aquaculture, and other applications.
The submersible sewage pump has a high lift head, but the flow is smaller than that of the submersible axial flow pump, and it is mainly used for various sewage lifting and other occasions.
The centrifugal pump is designed according to the principle of centrifugal force. The specific speed is relatively small, and the impeller is relatively narrow and long. The high-speed rotating impeller blades drive the liquid to rotate, and the liquid is thrown out to achieve the purpose of conveying.
There are many media that can be transported by centrifugal pumps, such as oil, water, and chemical raw materials. Centrifugal pumps can also be designed to be installed underwater, such as submersible sewage pumps. The main feature of centrifugal pumps is the high lift head.
In addition, the centrifugal pump can also be designed as a submersible type installation.
Submersible pumps are classified according to installation methods. The pumps that need to run underwater all can be called submersible pumps.
According to the type of impeller, submersible pumps can also be divided into centrifugal pumps, submersible axial flow pumps, or submersible mixed flow pumps.
For example, the principle of a submersible axial flow pump is similar to the propeller of the ship and the propeller of an airplane, the shaft of the submersible axial flow pump and the motor shaft are the same one, the pump and the motor are integrated, and the conveying medium is water.
The submersible axial flow pump is characterized by large flow and low head.
So, in summary, centrifugal pumps can also use the installation method of submersible pumps, and submersible pumps can also use centrifugal impellers.
If necessary, tuohai will provide you with a variety of centrifugal pumps and submersible pumps, contact to get more.
Literally understood, a submersible pump is a pump that needs to be operated underwater, and it is one of the types of water pumps.
First of all, confirm whether the performance such as the flow rate and head of the pump meets your needs.
Check the performance curve to confirm whether the submersible pump is in the highest efficiency range when it runs according to your parameters.
The pump shaft of a good submersible pump should rotate flexibly, without impact, and the pump shaft diameter should not shake significantly.
The protection class of the submersible pump needs to be IP68 or higher, and the insulation class should be F or higher.
Tuohai has more than 25 years of experience in the production of submersible pumps, contact us, tuohai will provide you with the best quality submersible pumps.
Contact Tuohai, we will select the most suitable pump for you.
You need to confirm the depth of your well, the flow rate, and the outlet size you need, and then you can choose the appropriate size submersible pump according to the flow rate and head you need.
Please note that when choosing a submersible pump, please confirm the voltage and frequency, because the voltage standards of various countries may be different.
If you are not sure which size you need, please contact tuohai, we will select and provide the best submersible pump for you.
A single-stage submersible pump cannot reach the head of 400 feet, and the multi-stage pump must be used to achieve it.
Contact Tuohai, we will solve all the problems for you.
Of course, it is possible, but the parameters and size of the pump have a great relationship. If the size of the pump is changed, then its flow and head will definitely change, which will reduce the efficiency of the pump, which is undesirable.
If you want to change the size of the existing pump, please Contact Tuohai, our professional engineers will give you a reference opinion, so that you can change the size of the pump while maintaining the original efficiency and parameters.
The motor of the submersible pump is cooled by the flowing medium, so when the submersible pump is used in a shallow well, please make sure that the position of the pump motor is below the water surface.
If the water level line is lower than the position of the motor for a long time when the submersible pump is running, the motor of the submersible pump may be burnt due to lack of cooling.
For more usage, please Contact Tuohai.
The 7.5Hp pump is generally a centrifugal pump or a submersible sewage pump, and its flow is about 750~1100 liters/min
The flow rate of the 1.5HP submersible pump is about 110~150 liters/min
Submersible pumps are generally used for farmland irrigation, municipal engineering, water conservancy, cooling water in industry, etc.
In addition, the submersible sewage pump is often used for the promotion of urban sewage due to its high lift. It can be used for sludge with solids and various long fibers, wastewater, and urban domestic sewage.
If you are not sure whether you can use the submersible pump, please contact TUOHAI, our professional engineers will answer you as soon as possible.
For more information about the submersible pumps please Contact TUOHAI.
When choosing a submersible pump, you need to measure the head and flow of the pump, and then choose a submersible axial flow pump, deep well pump, or submersible sewage pump according to the feasible installation method.
If you are not sure whether can use the submersible pump, you can Contact TUOHAI, we will choose the most suitable power and size submersible pump for you.
Submersible pumps are divided into submersible axial flow pumps, submersible sewage pumps, and deep well pumps.
The working principle of the submersible axial flow pump is similar to that of a ship's propeller. When the submersible axial flow pump is running, the impeller must be completely immersed in the water. When the impeller rotates, it generates thrust, thereby pushing the medium to be transported and pumping it out.
The principle of the submersible sewage pump is centrifugal. The motor drives the impeller to rotate at a high speed and drives the liquid between the blades to rotate together. Due to the centrifugal force, the liquid is thrown from the center of the impeller to the outer edge and flows out along the discharge port at a higher pressure.
The deep well pump is a multi-stage pump, which is relayed by multiple centrifugal impellers to continuously lift the liquid upwards to achieve a high head.
Contact Tuohai, we will show you more information about submersible pumps.
The design life of the submersible pump is 15 years, and the actual average service life is about 10 to 12 years, which has a lot to do with its operating environment.
If the housing of the submersible pump is made of cast iron, and the conveying medium has many impurities and is corrosive, then the service life will be greatly reduced.
If the submersible pumps are maintained on time and the conveying medium is clean and non-corrosive, the service life can reach 10 to 15 years.
If you want to have a longer service life, you can choose to use a stainless steel shell, and the submersible pump needs to be maintained on time.
Contact Tuohai to get more information about the long service life submersible pumps.
In theory, the submersible pump can run continuously for 24 hours.
In actual use, if a liquid level sensor or float switch is installed, when the liquid level drops to the set height, the submersible pump will automatically stop running. At this time, the submersible pump is in a cooling-off state and will run again when the liquid level rises to the set height.
Therefore, it is feasible for the submersible pump to operate continuously for 24 hours. After a long period of operation, the pump needs to be lifted out of the water for maintenance.
Yes, the submersible pump can be installed and operated horizontally.
Tuohai can provide a variety of horizontally installed submersible axial flow pumps and submersible sewage pumps and can provide the installation design drawings for free.
Yes, the submersible pump can be designed to be installed vertically or horizontally according to your requirements.
Yes, when the submersible pump is running, it needs to be immersed in water or various media all the time, and the motor is cooled with the help of flowing water or other media.
So the submersible pump must be submerged in the water when running.
The price of different submersible pumps will vary according to different performance parameters. The price of the submersible pump will be different if the material used is different.
Contact Tuohai, we will provide you with the best offer.
Yes, the submersible pump can always be underwater.
But if the submersible pump is not used for a long time, the pump needs to be lifted out of the water and stored in a dry place to avoid corrosion due to long periods of non-operation underwater.
No, it can't.
The submersible pump must be submerged in the water when it is running, because the submersible pump needs to rely on the surrounding water to cool the motor.
If it runs out of water for a long time, it will burn the motor.
Sewage pumps are divided into dry sewage pumps and submersible sewage pumps.
Dry-type sewage pumps cannot be running underwater.
The submersible sewage pump can be submerged in water to operate.
The submersible pump needs to use the medium to cool the motor when it is working.
If the submersible pump runs dry for a long time, the motor will be burned due to the high temperature.
Check for cracks in the casing of the submersible pump. If there are cracks, they cannot be used.
Check whether the net cover at the water inlet of the submersible pump is blocked by weeds and whether the impeller is entangled.
Check the insulation resistance of the submersible pump. If the insulation resistance is too low, open the water and vent holes, and use it after drying.
Check whether the cable of the submersible pump is damaged or broken, otherwise, replace the cable with a new one.
Check whether the seals at the vent, drain, oil drain, and cable connector of the submersible pump are loose, and must be tightened if they are loose.
Check the mechanical seal of the submersible pump to prevent water from entering the submersible pump.
After the submersible pump runs continuously for 2000 hours, the lubricating oil needs to be replaced.
After the submersible pump is used for one year, check the rust, remove the rust, and apply a layer of anti-rust paint to protect it.
After every two years of use, the submersible pump should be thoroughly inspected. All parts should be disassembled, inspected, cleaned, lubricated, and reassembled.
If the submersible pump is not used for a long time, it should be lifted to the ground, wiped off the water stains, and placed in a dry and ventilated room for storage.
If there have any problems with the submersible pump, please feel free to Contact Tuohai, we will assure you of our best service.
Do not start the switch frequently, as this will burn out the motor windings of the submersible pump.
After turning off the submersible pump, it cannot be started immediately. After the water pump is turned off, the liquid in the water pump will flow back. If the submersible pump is started at this time, it will cause a great load on the water pump and burn the motor.
Be sure to use the parameters on the nameplate of the submersible pump. If the pump lift is too low, it will cause the pump to run overloaded for a long time.
Check the submersible pump frequently. When not in use for a long time, the submersible pump can be lifted out of the water for maintenance, and the surface should be rust-proofed and stored in a dry place.
Contact Tuohai Now, we will send you more information about how to protect the submersible pumps.
If the submersible pump is equipped with a liquid level switch and is set to automatically start, the water pump will start frequently when the liquid level changes frequently.
Another situation is that the impeller of the submersible pump may be blocked, and the pump will be frequently started. Now, the submersible pump needs to be overhauled.
If you cannot determine the cause, please Contact Tuohai, we will serve you wholeheartedly.
There are many reasons for the failure of the submersible pump, such as：
For more questions about submersible pump failure, please Contact Tuohai
If there is a problem with the submersible pump, it can be repaired, but it must be operated by a professional technician.
Tuohai can also provide submersible pump spare parts replacement and repair services, if necessary, you can Contact Us at any time.
The distance between the bottom of the submersible pump and the bottom of the pool should be at least 0.5 meters so that the medium can smoothly enter the water inlet of the submersible pump, otherwise, it will cause high negative pressure in the pump, which will cause the submersible pump to run overloaded.
Contact Tuohai to get more installation about the submersible pumps.