In order to effectively solve problems such as pumping from great depths and supplying water to an autonomous water supply system, it is necessary to understand the design of a submersible pump for a well. The use of such pumps makes it possible to pump water from wells whose depth reaches 80 meters. In this article we will look at how a submersible pump works, what categories it is divided into and how to choose the right device.
The pump for the well is selected taking into account certain features of its future operation
General design features
All types of submersible pumps for equipping wells, as mentioned above, have common design features. Since submersible (or deep) pumps during use are located in the thickness of the liquid medium they pump, they are equipped with a sealed housing that protects the electric motor from contact with the liquid.
The housing of submersible pumping equipment, which can vary in size and weight for different models, usually has an elongated cylindrical shape and a relatively small diameter. This form of the body of deep-well (submersible) pumps is optimally suited for placing them in casing columns, in which they are located during their operation.
An elongated cylinder is a design feature of submersible well pumps
The following design features are also common to all types of submersible pumps:
- the presence of a coarse filter installed on the suction pipe (the main purpose of such a filter is to protect the inside of the device from the ingress of solid impurities contained in the pumped liquid);
- equipped with a check valve (many modern models of submersible pumps for wells have such an element that prevents the pumped liquid from moving in the opposite direction; if it is not included in the basic configuration of the pump, then it is purchased additionally and installed on the equipment, for which a special threaded connection is provided) .
At the top of the submersible well pumps there is an outlet pipe, a power cable outlet and cable securing clamps
Optional equipment
Automation for downhole devices allows you to forget about the operation of the pump. Let's look at some types of equipment and connect it according to the diagram.
Automation
Divided into 3 generations:
- 1st generation: pressure switch, dry run blocker, float switch;
- 2nd generation: an electronic device that has several sensors installed in the pipeline, on the pump and other places. Thanks to it, the following work is performed: water level recording, dry running blocking, emergency shutdown, engine temperature control;
- 3rd generation: has advanced functions, with precise control of operation.
The best vortex pumps for wells
The operation of such pumps is based on the use of an impeller that pumps liquid from the inside of the channel to the outside. Such models create high pressure, have simple mechanisms, but are not suitable for use in muddy water containing abrasive particles.
Grundfos SQE 2-85
5.0
★★★★★
editorial assessment
100%
buyers recommend this product
See review▶
Thanks to the small dimensions and light weight of the model, it is very easy to install and allows you to save on drilling and well construction. A built-in check valve and floating impellers ensure reliable operation and resistance to dense particles in the water.
The engine has a power of 1150 W and allows you to pump up to 3.4 m³ of liquid per hour. Its mechanism is based on permanent magnets, which guarantees high performance and economical energy consumption.
Advantages:
- soft start function;
- thermal protection;
- electronic control;
- ease of installation and maintenance.
Flaws:
- high price.
Grundfos SQE 2-85 is used for pumping clean water. It is equipped with a hydraulic tank, pressure and temperature sensors, a pressure gauge and a remote communication system, which increases the usability of the pump.
Elpumps BP10
5.0
★★★★★
editorial assessment
100%
buyers recommend this product
The special design of the pump mechanism consists of ten impellers cast from high-strength polymer. Thanks to this, the device develops pressure up to 6 bar, which increases its performance.
The motor power is 1400 W, it is protected from overheating and contamination. Liquid intake is carried out in the central part of the housing. This prevents sand and bottom sludge from entering the pump.
Advantages:
- high performance;
- long cable;
- wear resistance;
- powerful engine.
Flaws:
- high price.
Elpumps BP10 is used to supply liquid to irrigation and water supply systems. It can be used in narrow wells and is unpretentious to water quality.
AquamotoR AR 3QGD2-115
4.8
★★★★★
editorial assessment
90%
buyers recommend this product
The model is equipped with a 750 W electric motor, protected from overheating. It provides a flow rate of approximately 33 liters per minute. The device has a built-in capacitor, which allows you to connect the pump directly to a 220 V network.
The device can be immersed in water to a depth of 30 meters and is capable of steadily raising water to a height of 115 m. However, it must be installed at a depth of at least one meter from the bottom of the well or well.
Advantages:
- stainless steel body;
- steel working screw;
- thermal protection;
- ease of installation.
Flaws:
- lack of protection against dry running.
AquamotoR is used when pumping liquids with a dense particle content of no more than 150 g/m³. It is suitable for supplying fresh water to residential buildings and irrigating gardens.
READ ALSO
12 Best Heat Pumps
Popular models for home and garden
Let's compare the most famous:
- DAB IDEA 75M. Household vortex unit. Delivers liquid from 10 m. Easy to use. Ideally combined in energy consumption and technical requirements. characteristics. The rotation of the brass wheel may become stuck.
- Aquario ASP 1E-30-90. Centrifugal submersible unit, the ideal solution for the dacha. Lifts liquid from 20 m. Silent operation. An obvious disadvantage is damage to the motor after several years of operation.
- VORTEX CH-50N. The body of the submersible apparatus is made of high-quality stainless steel. A thermal relay is provided. Designed for up to 50 m of immersion. After a certain time, the impeller key changes shape, oil leaks, and the engine burns out.
- Wilo TWU 3-0501-HS-E-CP. This is a high pressure pump for source depths up to 150 m. Best for artesian water. Creates a pressure of up to 26 m. Has many levels of protection. There are practically no disadvantages.
The best surface pumps for wells
Devices of this type are very easy to install and maintain. Surface pumps do not need to be immersed in water, they are low cost and have a long service life. However, such devices are inefficient and noisy during operation. They are used for pumping liquid from shallow wells.
Metabo P 3300 G
4.9
★★★★★
editorial assessment
94%
buyers recommend this product
See review▶
The model is characterized by high performance and a powerful 900 W motor, equipped with an overheating protection system. The device is capable of pumping up to 55 liters of liquid per minute. The device body is made of cast iron, and the drive shaft is made of stainless steel.
Ease of use is due to the rubberized anti-vibration stand, ergonomic carrying handle, and the presence of a drain plug that can be unscrewed without the use of tools.
Advantages:
- ease of installation and maintenance;
- silent operation;
- long service life;
- high performance.
Flaws:
- heavy.
Metabo P 3300 G is used to provide a private home or countryside with water. With its help, you can set up an irrigation system, pump out groundwater or drain a swimming pool.
Quattro Elementi Automatico 700 EL
4.8
★★★★★
editorial assessment
89%
buyers recommend this product
Distinctive features of the model are ease of installation and use, as well as small dimensions. Thanks to the built-in automation unit, the device monitors pressure changes and turns off when the water level in the well drops dangerously.
The device body is made of impact-resistant plastic and is not subject to corrosion and low temperature influences. A powerful 700 W motor ensures high performance of the device and allows you to pump liquid at a speed of 3000 liters per hour.
Advantages:
- shockproof housing;
- light weight;
- automatic operation;
- dry running protection;
- presence of a check valve and a cleaning filter.
Flaws:
- lack of fixation on the surface.
Automatico 700 EL is used in private homes with low water consumption. Protection from extreme temperatures, water runoff and structural contamination extends pump life.
Whirlwind PN-370
4.7
★★★★★
editorial assessment
85%
buyers recommend this product
Features of the model are simplicity of design and durable body. The pump is made of cast iron and aluminum, thanks to which all important elements of the device are reliably protected from external influences. The device is capable of pumping up to 45 liters of water per minute.
The device's power of 370 W allows it to lift liquid to a height of up to 30 meters. An increase in suction depth and pressure force is provided by a built-in ejector with a pipe system. The flat base has four holes for fastenings, ensuring the pump is fixed on various surfaces.
Advantages:
- high power;
- durable body;
- reliable fixation;
- performance.
Flaws:
- lack of protection against dry running.
The PN-370 whirlwind can be used in a garden plot to irrigate the land. Simplicity of design and quality of assembly guarantee a long service life of the device.
Belamos XA 06 ALL
4.7
★★★★★
editorial assessment
85%
buyers recommend this product
See review▶
This pump has a single-phase motor with thermal protection. It is designed for long-term continuous operation and is characterized by high performance. The device is equipped with a pressure gauge and an automatic relay for convenient control of pressure and bringing it to a normal value.
The cast iron body and legs with holes for fastenings ensure the strength and stability of the structure. A 19-liter membrane hydraulic accumulator protects the device from water hammer and allows you to create a liquid reserve in case of a power outage.
Advantages:
- overheat protection;
- excellent performance - 47 l/min;
- liquid lifting height up to 33 meters;
- capacious tank;
- reliable fixation on the surface.
Flaws:
- lack of protection against dry running.
Belamos XA 06 ALL is used when lifting water from shallow wells. The pump can be used for irrigation of personal plots or water supply to private houses.
READ ALSO
13 Best Well Pumps
How to choose and what to pay attention to?
When choosing a pump for a well, you should pay attention to the following criteria:
- Productivity . The pump for the well must cover at least 50% of the total water consumption in the water supply system and at the same time not exceed the flow rate of the well (so as not to suck water out of the well faster than it is collected there). The well flow rate can be viewed in the installation passport.
- Maximum immersion depth . Here we mean the depth of immersion under water, and not generally into the well. For example, if the well has a total depth of 50 m, but from the surface to the water table is 20 m, then there is 30 m of water space, and if you want to lower the unit almost to the very bottom, then its maximum immersion depth should be at least 30 m.
- Power cord length . The power cord must be at least as long as the total depth of the well (if lowered to the very bottom) plus the distance to the outlet.
The best screw pumps for wells
The operating principle of such models is based on the action of a screw mechanism. The simplicity of the design determines the low cost and unpretentiousness of such pumps. A feature of their functioning is the creation of high pressure at low productivity. Screw pumps are used in shallow wells with low volume flow rates.
Owner 4NGV-30/100
4.9
★★★★★
editorial assessment
95%
buyers recommend this product
The distinctive characteristics of the model are small dimensions and long service life. The device body is made of stainless steel, it is easily installed in the well and requires virtually no maintenance.
The engine power is 800 W, the immersion depth does not exceed 15 m. The height of water rise can reach 100 meters with a productivity of 30 liters per minute. This makes it possible to provide water to premises located at a distance from a well or well.
Advantages:
- compact dimensions;
- resistance to corrosion;
- high engine power;
- low price.
Flaws:
- noisy.
Host 4NGV-30/100 is used in private water supply systems. The productivity, small dimensions and enviable power of the device facilitate its installation even in hard-to-reach wells.
Daewoo DBP 2500
4.8
★★★★★
editorial assessment
93%
buyers recommend this product
The model attracts with ease of installation, durability and versatility of use. It can be used in wells containing turbid water with abrasive particles. Thanks to the presence of hooks on the body of the device, it is easy to immerse it in water and lift it to the surface.
The motor power is 1200 W, which allows you to pump liquid to a height of up to 140 meters. The device is installed in narrow wells with a diameter of at least 110 millimeters and is capable of supplying almost 42 liters of water per minute.
Advantages:
- ease of installation and maintenance;
- working in contaminated water;
- ease of immersion;
- powerful engine.
Flaws:
- heavy weight;
- short power cable.
Daewoo DBP 2500 can be used for water supply to residential buildings. The stainless steel case and unpretentiousness to the quality of the liquid guarantee a long service life of the device.
Sturm! WP9705DW
4.7
★★★★★
editorial assessment
87%
buyers recommend this product
The ease and safety of immersing the pump in water is ensured by the lugs on the body. Thanks to the sealed steel structure, important elements of the unit are reliably protected from damage and contamination.
The 550 W motor has an overload fuse and provides the pump with a capacity of 26.6 liters per minute. The device can be lowered into water to a depth of 50 meters.
Advantages:
- light weight;
- ease of immersion;
- durability;
- low price.
Flaws:
- low productivity.
Sturm! The WP9705DW is a compact and inexpensive solution for pumping water from deep wells. It is suitable for stable water supply to a site or a private house in small volumes.
Mr.Pump "Screw" 20/50 3101R
4.7
★★★★★
editorial assessment
85%
buyers recommend this product
Features of the model are a built-in thermal relay and a small diameter of the structure. Thanks to this, the device can be installed in narrow wells, ensuring a stable water supply without overheating the engine.
The body is made of stainless steel and is protected from contamination and the ingress of foreign dense particles. Low power consumption and affordable price of the device distinguish it from its analogues.
Advantages:
- diameter - 90 mm;
- protection against overheating and contamination;
- efficiency;
- long service life.
Flaws:
- low power - 370 W.
Mr.Pump The screw lifts liquid up to 50 meters. It is capable of long-term trouble-free operation in narrow wells and dirty water.
