Borehole pump for water with sand. Overview of Sand or Silt Pump Types Screw Pumps for Sand Wells

In everyday life and production, it is often necessary to pump out water. This may be necessary, for example, to clean reservoirs, wells or wells.

But it is not always necessary to “cope” with clean water, without impurities, sand, silt and other deposits: when it becomes necessary to pump out water with various kinds of inclusions, sand pumps will help to cope with this task perfectly.

1 What is a sand pump?

The sand pump is a pumping equipment: these are single-stage, cantilever centrifugal pumps with an impeller (open) on one side. Its main task is to pump various kinds, including sandy, abrasive slurries, ore beneficiation products, as well as alumina production, water mixed with clay, silt, etc. However, there are certain limitations on the physical and chemical properties of that fluid that needs to be pumped or cleaned.

Indicators that the pumped solution should have:

1. The temperature can be from 5ºC and not exceed 60ºC.
2. Density of pumped liquid up to 1300 kg/m³.
3. The concentration of solids (inclusions) should not exceed 25%.
4. The maximum size of these same inclusions can reach up to 10 mm, no more.
5. The maximum microhardness is 9000 MPa.

It is better to pay attention to these indicators, since if they are observed, pumping equipment will work most efficiently and for a long time.

1.1 Applications

The main areas of application of this type of pumps are metallurgical, mining, construction and other industries, while this is not an exhaustive list of areas where it can be useful.

The silt and sand pump can perform the following tasks:

• for cleaning and subsequent filling of trenches (when laying cables, pipelines, etc.);
• removal of sludge, silt, settled dirt, clay, sewage, various household and industrial waste;
• for cleaning caissons during construction work;
• restoration of coastal zones;
• marble dust pumping;
• for cleaning various kinds of reservoirs;
• extraction of sand from the bottom of the ocean;
• the pump is also suitable for pumping sand from a well and a well;
• this drainage pump can be useful in the destruction of gold mining tailings, to improve the operation of the well in ball mills;
• in sewage treatment plants, for the collection pit of concentration plants, and for the removal of materials from sedimentation tanks.

This pumping equipment is not intended for pumping, pumping water and other works for cleaning in fire and explosion hazardous conditions.

2 What types of sand pumps are there?

The protection of the flow path determines the division of pumps by type, and also demonstrates the maximum allowable size of solids that the pump can pass:

1. Gummed (PR) Particle size up to 2 mm.
2. Corundated (PC) Particles with a diameter of 1 mm.
3. Created from wear-resistant cast iron (types P and Pb). Pumps of this kind are capable of passing particles of clay, silt, sand and other substances up to 6 mm in size.

Depending on how the shaft is located, horizontal and vertical pumps are distinguished. Horizontal models include models of types PR, P, PB, as well as PK, while vertical models include PKVP and PRVP.

1. Type P pumps are console horizontal single-stage pumps with an impeller for one-way inlet. These centrifugal samples are used for pumping and pumping products obtained as a result of ore dressing and alumina production. The material from which the solid part is made is wear-resistant cast iron. Solution density up to 1300 kg/m³. Permissible cavitation reserve-height below which the designer cannot fall is 2.0 m.
2. The pump type PB is also horizontal and cantilever. But at the same time, centrifugal pumps of the PB type allow you to have a cavitation reserve of 5.0 m.
3. PR differs from previous models in that the main part of the flow part is lined with corundum on an organic binder.
4. Pumps of PKVP and PRVP types are also cantilever pumps, but at the same time they are vertical. They are submersible with supports outside the pumping of water or other liquid.

The strong part in PRVP consists of wear-resistant rubber, and in PKVP - corundum lining with an organic binder.

2.1 Surface and immersion models

Downhole (in particular, sand) drainage pump in its structure can be both surface and submersible.

In the first case, it is a powerful device with a rotor that pumps water or sludge by sucking it through the working chamber. Such pumps are capable of lifting slurry at a depth of up to 10 meters.

Advantages of surface pumping equipment:

• the ability to transport liquids over sufficiently long distances;
• the possibility of continuous long-term work;
• high degree of reliability, as there is no need for immersion in an aggressive water environment.

Disadvantages:

• high noise level;
• the impossibility of the pump to work deeper than 10 meters.

As for submersible models, this is equipment designed to pump water directly to a well or from a well. During operation, they are immersed under the very thickness of the water and left there until the completion of the process of pumping the well.

A device of this type is more productive than the previous type. Also, their advantage is the ability to work at more serious depths of a well or well (the exact characteristics depend on the specific manufacturer and model of pumping equipment).

Strengths of submersible pumps:

• small size and weight;
• long-term use without maintenance is possible;
• high performance;
• dry protection;
• it is possible to use in automatic mode for a drainage well;

Which type of pump to choose - surface or submersible - depends on the depth at which you are going to work (the process of cleaning, pumping, etc.), at what speed you need to carry out these works. The issue of price is also important, as immersed samples are more expensive.

2.2 How does a screw well pump work?

The screw borehole drainage pump is a type of submersible pump that specializes in pumping water from a well (hence the name), and is one of the most popular examples of sand pumps.

In these pumps, the working element is a broaching screw or an auger (hence the second name - auger). Systems of this type allow them to be used in wells with a high level of contamination. The auger design does not allow sand and other small debris to clog anywhere and block the operation of the pump.

And the fact that when the rotor accelerates, the productivity increases, but the outlet pressure remains practically unchanged, makes it possible to use screw pumps not only for pumping and purifying water from a well or well, but also in production, for example, when pumping oil products.

Screw models have a number of advantages, among them:

1. Convenience of design. Such pumps are extremely easy to operate: no special knowledge is required.
2. Ease of repair. Both mechanical seals and stuffing boxes are designed in such a way that if the need arises, they can be replaced in the shortest possible time without using any additional equipment.
3. Absence of vibrations. Screw pumps practically do not create any vibrations, despite the high power and a large number of working revolutions. This happens due to the use of rotors with the extraction of hollow parts.
4. Long service life. This advantage "follows" from the previous one: it is precisely from the absence of vibrations that screw pumps are distinguished by a long service life.

2.3 How does a sand pump work? (video)

Boreholes are increasingly replacing wells as water abstraction sources. To extract water from them, special submersible pumps are needed, the range of which is wide on the market. To quickly understand the models, namely their characteristics, and then decide which unit to purchase, study our rating.

Pumps for wells of which company to choose

There are many noteworthy manufacturers on the modern market for borehole pumps.

1. Wilo is a leading German corporation whose pumping units are sold all over the world. High quality household electrical appliances have been produced since the distant 1872.

2. Aquario is a trademark (Italy), the brand of which is on many high-quality electric pumps sold in the CIS countries.

3. JILEX is a successful manufacturer of water pumping equipment - founded in 1993. Production facilities are located in the city of Klimovsk near Moscow.

4. Pedrollo is an Italian company that has been producing high-quality electric pumps since 1974. It has proven itself with advanced technologies and qualified personnel.

5. Aquarius is a well-known trademark from the Ukrainian manufacturer Promelectro-Kharkov. Since 1995, the company has been producing competitive products for water transportation.

6. ESPA is a popular Spanish company specializing in innovative pumping technology. The industrial business was opened in 1952.

7. VORTEX is a leading Russian brand, known primarily for high-quality pumping equipment. Products under this name have been produced since 1974 at a plant in Kuibyshev. Now production has moved to China.

Rating of the best borehole pumps

• Demand for different models based on popularity, rating and positive reviews.
• Type of submersible unit (screw, vortex, centrifugal) and method of its installation (vertical, horizontal).
• Type of well (on sand, on limestone).


• Purpose of the transported liquid.
• Technical parameters (immersion depth and head, flow rate and power, level of protection and noiselessness, weight and size) and their veracity under operating conditions.
• Materials used in the manufacture of the hull, assemblies and parts.
• Ease of operation and maintenance, as well as the level of automated control and management.
• The manufacturing company and its status in the market.
• Warranty obligations and quality of customer service.
• Real service life.
• Total cost (pump + installation + potential repair).

The best electric pumps for wells 10 m deep

Q=2.40 m3/h

DAB IDEA 75M is a quiet, thermally protected vortex pump that works in a vertical position. There should be up to 40 g of sand per 1 m3 of pumped water.

Advantages:

• immersion / flow / head: 10 m / 2.40 m3 / h / 39 m;
• power (P) / voltage (U): 550 W / 220 V;
• D outlet holes: 1";
• network cable: 15 m;
• price: 15.5 ... 20.0 thousand ₽;
• unpretentious in work;
• good combination of technical parameters and energy consumption.

Flaw:

• poorly finished inner edges can stop the rotation of the brass wheel.

The unit is highly rated in reviews - small technical flaws are not significant, in addition, they are easily corrected.

Q=3.00 m3/h

Elpumps BP 1/4 is a multi-stage centrifugal model with an improved cooling system. The installation is vertical, the amount of sand is up to 40 g/m3, the body is made of stainless steel, the impeller is made of bronze.

Advantages:

• head / immersion / flow: 55 m / 10 m / 3.00 m3/h;
• P/U: 1300W/220V;
• Outlet D: 1";
• power cord: 20 m;
• price: 18.4 ... 19.2 thousand rubles.

Flaw:

• over time, the bolts in the filter area loosen.

The vast majority of correspondents agreed: the Hungarian electric pump is well made and will last a long time.

Q=5.10 m3/h

Elpumps BP 10 is a vertically mounted centrifugal unit that pumps liquid with a solids weight of 40 g per cubic meter. In the presence of thermal protection and cutting nozzle.

Advantages:

• flow / head / immersion: 5.10 m3/h / 60 m / 10 m;
• P/U: 1400W/220V;
• Outlet Hole Ø: 1¼";
• network wire: 20 m;
• price: 18.0 ... 2.0 thousand ₽;
• The body is made of stainless steel.

Flaw:

• filter clogs over time.

Most of the reviews are positive, and the filter is simply pumped with water.

Electric pumps for wells 15 m deep

Q=1.20 m3/h

UNIPUMP ECO VINT1 is a low-speed vertical unit operating at liquid temperatures up to 35 °C.

Advantages:

• head / immersion / flow: 73 m / 15 m / 1.20 m3/h;
• P/U: 370W/220V;
• Outlet Ø: 1";
• network cable: 15 m;
• price: 4.9 ... 7.6 thousand rubles.

Disadvantages:

• rusty gears;
• the screw is unreliably designed - it works intermittently.

Reviews are largely positive, but not everyone is satisfied with the quality of the materials used.

Q=2.50 m3/h

Belamos 3SP 90/2.5 is a vertically mounted submersible device protected from overheating. It works with clean water, the amount of sand in 1 m3 of which should not exceed 40 g.

Advantages:

• delivery / immersion / head: 2.50 m3/h / 15 m / 90 m;
• P/U: 1400W/220V;
• D outlet holes: 1";
• network cable: 20 m;
• price: 7.5 ... 12.7 thousand rubles;
• main parts in stainless steel.

Disadvantages:

• not yet discovered.

Consumers are satisfied with the equipment - the pressure and performance are satisfied, no weaknesses have been identified.

Q=4.50 m3/h

Elitech NG 900-60 is a Russian-Chinese centrifugal electric pump, a feature of which is the control unit. Equipped with an electronic switch and a protective complex against excessive heating. Suction system - 9-stage.

Advantages:

• immersion / productivity / head: 15 m / 4.50 m3 / h / 60 m;
• P/U: 900W/220V;
• D nozzle outlet: 1 ";
• network cord: 20 m;
• price: 9.5 ... 12.9 thousand rubles;
• the impeller is made of technopolymer.

Flaw:

• unreliably and inconveniently attached to the body of the cord leading to the launcher. Over time, it may break.

Reviews about the model are mostly positive: its technical characteristics and performance indicators turned out to be at a good level.

Electric pumps for wells 20 m deep

Q=2.70 m3/h

Aquario ASP 1E-30-90 is a centrifugal submersible technical product located vertically in the well. There must be ≤ 120 g of sand in a cubic meter of water.

Advantages:

• immersion / head / productivity: 20 m / 32 m / 2.70 m3 / h;
• P/U: 450W/220V;
• Outlet D: 1";
• network wire: 30 m;
• price: 10.1 ... 13.5 thousand rubles;
• silent in operation.

Flaw:

• after a few years of good service, the motor may burn out.

Judging by the user reviews, the unit is good, but not eternal - over time, the motor cannot withstand overloads.

Q=5.10 m3/h

UNIPUMP ECO AUTOMAT is a centrifugal vertical unit with thermal protection. The content of mechanical inclusions in water should be up to 0.1 kg per m3.

Advantages:

• head / immersion / productivity: 56 m / 20 m / 5.10 m3 / h;
• P/U: 750W/220V;
• Outlet nozzle Ø: 1 ";
• network cable: 20 m;
• price: 14.3 ... 19.2 thousand rubles;
• non-return valve and pressure switch are pre-mounted in the structure;
• quietly pumps liquid;
• if the quality assembly, it works flawlessly.

Disadvantages:

• sensitive to power surges;
• automatics periodically work incorrectly;
• sometimes the bearings get stuck.

There are more pros than cons in the reviews. It should be noted that some of the dissatisfied transported dirty water.

The best electric pumps for wells 25 m deep

Q=4.20 m3/h

ESPA Neptun fl60 65M is a centrifugal vertical device with many additional options: soft start of the motor, anti-thermal protection, suction filter. The weight of sand per 1 m3 of water should not exceed 100 g.

Advantages:

• head / productivity / immersion: 92 m / 4.20 m3 / h / 25 m;
• P/U: 1500W/220V;
• Outlet Ø: 1 ";
• electric cable: 30 m;
• price: ≈41.8 thousand rubles;
• engine running is not heard.

Flaw:

• the cutting attachment is dull.

Based on the reviews, the unit is worthy of the attention of buyers.

Electric pumps for wells 30 m deep

Q=1.92 m3/h

PATRIOT SP 3250S is a vertical submersible pump that creates high head and pressure in the network. It passes particles up to 2 mm in size through its filter.

Advantages:

• productivity / immersion / head: 1.92 m3 / h / 30 m / 100 m;
• P/U: 500W/220V;
• D fitting outlet: 1";
• electric wire: 18 m;
• price: 5.3 ... 7.3 thousand rubles;
• can pump contaminated liquid.

Disadvantages:

• a crookedly welded clamp does not allow the threaded connection to be made correctly;
• After connecting to the network, it starts working after a pause.

From the reviews it is clear that the device is solid, but not without some assembly curiosities.

Q=3.60 m3/h

Aquarius BTsPE 0.5-32U is a vertical centrifugal type unit with a smooth start of the motor and protection of the latter from overheating.

Advantages:

• productivity / head / immersion: 3.60 m3 / h / 47 m / 30 m;
• P/U: 820W/220V;
• D Outlet Fitting: 1";
• electric cord: long;
• price: 8.2 ... 13.0 thousand rubles;
• remote start capacitor;
• reliable - even without a voltage stabilizer that can be delivered.

Flaw:

• performance depends on the "behavior" of the voltage;

The conclusion, based on the reviews: household appliances fully meet the expectations of consumers - it works without failures.

Q=6.60 m3/h

JILEX Waterjet PROF 110/110 is a vertically mounted submersible pump, the filter of which retains particles larger than 1.5 mm. There is protection against "zero load".

Advantages:

• immersion / flow / head: 30 m / 6.60 m3 / h / 110 m;
• P/U: 2200W/220V;
• outlet fitting Ø: 1¼ ";
• Electric cable: 70 m;
• price: 18.6 ... 45.0 thousand rubles;
• frequencies are regulated, electricity is saved.

Disadvantages:

• a bit pricey;
• not always on sale.

The reviews are wonderful: unpretentious in operation, the declared indicators coincide with the real ones, it works 100%.

The best electric pumps for wells 35 m deep

Q=2.40 m3/h

VORTEX CH-100V - a vertical vortex apparatus with a diameter of 10.2 cm. Pollution in the water should not be more than 40 g per cubic meter.

Advantages:

• immersion / flow / head: 35 m / 2.40 m3 / h / 100 m;
• P/U: 110W/220V;
• outlet fitting Ø: 1 ";
• electric cable: 20 m;
• price: 7.1 ... 7.6 thousand rubles.

Disadvantages:

• bolts rot in six months of service;
• interruptions with the "on-off" mode;
• customer service is not working well.

As some correspondents write: "at first it shakes well, and then in different ways." Others praise.

Q=5.10 m3/h

Oasis SN 85/70 is a quiet model with a durable valve and piston system. It is installed vertically in wells, the inner diameter of which does not exceed 9 cm. 100 g per cubic meter is the maximum sand content in the transported liquid.

Advantages:

• immersion / head / flow rate: 70 m / 35 m / 5.10 m3/h;
• P/U: 750W/220V;
• Discharge pipe D: 1½ ";
• electric cable: 30 m;
• price: 9.5 ... 10.5 thousand rubles.

Disadvantages:

• Not detected.

A well-made Chinese model did not receive a single negative review, including on a specialized forum.

Electric pumps for wells 40 m deep

Q=3.60 m3/h

PRORAB 8776 BP/65 is a vertical household pump designed for the construction of a water supply system in a country house. Equipped with a silent electric motor, thermal sensor, built-in capacitor. It pumps water with a significant amount of impurities: 0.2 kg/m3.

Advantages:

• flow / immersion / head: 3.60 m3/h / 40 m / 106 m;
• P/U: 110W/220V;
• D discharge pipe: 1¼ ";
• electric cord: 65 m;
• price: 16.0 ... 20.2 thousand rubles;
• stainless body.

Flaw:

• high pressure can damage the mixers.

The reviews also lack laudatory odes and serious complaints about the Russian product assembled in China. To buy or not to buy is up to consumers.

Q=6.00 m3/h

Pedrollo 4BLOCKm 4/14 is a monoblock vertical unit with thermal protection and a soft start motor. A non-return valve is installed in the discharge part of the body. The weight of sand in water is limited to 0.15 kg/m3.

Advantages:

• flow / head / immersion: 6.00 m3/h / 92 m / 40 m;
• P/U: 1100W/220V;
• D discharge fitting: 1¼ ";
• electric cable: 20 m;
• price: 32.4 ... 49.4 thousand rubles;
• widely used as an integral part of automatic water lifting stations.

Flaw:

• is relatively expensive.

The reviews note that the model is crammed with all the devices and systems necessary for high-quality work. And this played a positive role in its popularity.

Electric pumps for wells 45 m deep

Q=8.40 m3/h

ESPA Neptun fl120 60M is a centrifugal monobloc pump with soft start motor, suction filter and overheat protection device. It is contraindicated for the device to pump water with an excessive amount of sand - the limit is 100 g / m3.

Advantages:

• head / flow / immersion: 63 m / 8.40 m3 / h / 45 m;
• P/U: 1900W/220V;
• D discharge fitting: 1 ";
• cable: 30 m;
• price: ≈43.6 thousand rubles;
• quiet running, long service life.

Flaw:

• high price.

Reviewers have a high opinion of this model with high performance - breakdowns at the time of writing the reviews did not happen.

The best electric pumps for wells 50 m deep

Q=3.60 m3/h

VORTEX CH-50N is a unit with a lower water intake, the body of which is made of stainless steel. To protect the engine from overheating, a thermal relay is provided.

Advantages:

• head / immersion / flow rate: 50 m / 50 m / 3.60 m3/h;
• P/U: 600W/220V;
• Ø discharge pipe: 1 ";
• wire: 20 m;
• price: 9.8 ... 11.3 thousand rubles.

Flaw:

• after several years of operation, the motor fails, the impeller key is deformed, the parts are loosened, oil flows out.

From the reviews, the conclusion is obvious that the water-lifting equipment works well, but not for long. Although, it should be emphasized, the comments were quite controversial.

Electric pumps for wells 55 m deep

Q=22.50 m3/h

Pedrollo 4SR 15/10-F is a powerful downhole unit that can be installed both vertically and horizontally. The motor and pump are connected via a caliper. 150 g of sand per 1 m3 of water is allowed.

Advantages:

• depth / productivity / head: 55 m / 22.50 m3 / h / 60 m;
• P/U: 3000W/380V;
• Ø discharge pipe: 2 ";
• cord: 1.5 m;
• price: ≈73.1 thousand ₽;
• special hydraulic design;
• knots and details are made of strong corrosion-proof materials.

Disadvantages:

• weak pressure, not enough pressure;
• there is not enough debit to irrigate a large area.

Users generally speak positively about the technical device, while they blame the quality of drilling robots.

Electric pumps for wells 60 m deep

Q=4.20 m3/h

ESPA Neptun fl60 45M is a vertical multistage centrifugal design pump. 0.1 kg of sand does not impede the operation of mechanisms, which also have abrasive resistance.

Advantages:

• depth / head / flow rate: 60 m / 61 m / 4.20 m3/h;
• P/U: 1200W/220V;
• Ø discharge fitting: 1 ";
• rope: 30 m;
• price: ≈36.3 thousand ₽;
• internal cooling of the motor, complete tightness;
• noiselessness, efficiency, durability.

Flaw:

• when using different plumbing fixtures, pressure surges may occur. After the relay trips, the situation changes, but does not improve.

ESPA equipment is considered by users to be one of the best, and deservedly so. As for the above misunderstanding: it is necessary to carry out diagnostics - it is likely that this is a minor automatic nuisance that is easy to eliminate.

The best electric pumps for wells 70 m deep

Q=2.00 m3/h

DAB MICRA HS 302 – 6 is a vertically directional multistage pump with frequency control and built-in dry-running protection. Regulated weight of sand in 1 cubic meter of water: up to 30 g.

Advantages:

• head / depth / productivity: 60 m / 70 m / 2.00 m3/h;
• P/U: 1600W/220V;
• discharge fitting Ø: 1 ";
• network cable: 1.4 m;
• price: 46.6 ... 53.9 thousand rubles;
• in the manufacture of various components are used: stainless steel, bronze and technopolymers.

Disadvantages:

• with a permissible installation in a horizontal position, failures in engine cooling are possible;
• technically difficult to maintain;
• expensive.

The device in question rarely fails, is durable, pays for itself by extracting pure artesian water in the limestone layer.

Q=5.52 m3/h

Storm! WP9711DW is a twin-shaped vertical vortex electric pump that passes sand fractions up to 2 mm in size. The ratio of impurities and water: 1/400.

Advantages:

• head / flow / depth: 108 m / 5.52 m3 / h / 70 m;
• P/U: 1100W/220V;
• D discharge pipe: 1¼ ";
• network wire: 65 m;
• price: ≈22.3 thousand ₽;
• Easy to operate, durable body.

Disadvantages:

• Not detected.

From the reviews, we can conclude that there are no serious problems when pumping out artesian waters.

Electric pumps for wells 80 m deep

Q=2.70 m3/h

Belamos TF3-60 is a vertically mounted pump protected from overheating, which is capable of pumping water with a maximum amount of sand: 180 g/m3.

Advantages:

• depth / head / capacity: 80 m / 60 m / 2.70 m3/h;
• P/U: 800W/220V;
• D pressure fitting: 1¼ ";
• mains cord: 35 m;
• price: 10.4 ... 16.4 thousand rubles;
• production materials: stainless steel, brass, polycarbonate.

Flaw:

• may be depressurized with consequences.

Reviews are mostly positive. Much is worth the recommendation of this model by a professional driller.

Q=4.80 m3/h

Aquatech SP 3.5” 4-65 is a vertical unit made of stainless steel on the outside. It has a starting capacitor, a check valve, a protective thermal relay.

Advantages:

• productivity / depth / head: 4.80 m3 / h / 80 m / 65 m;
• P/U: 950W/220V;
• Ø discharge pipe: 1¼ ";
• network cable: 40 m;
• price: 9.3 ... 13.4 thousand rubles;
• quality assembly.

Disadvantages:

• insufficient pressure.

Consumers claim that the pump is solid.

The best electric pumps for wells 150 m deep

Q=6.50 m3/h

Wilo TWU 3-0501-HS-E-CP is a vertically or horizontally installed multi-stage unit with a frequency converter and thermal protection. Water should be as clean as possible - only 50 g of impurities are allowed per 1 m3.

Advantages:

• head / depth / flow: 26 m / 150 m / 6.50 m3/h;
• P/U: 600W/220V;
• pressure connection Ø: 1 ";
• network electric cable: 1.75 m;
• price: 66.2 ... 95.6 thousand rubles;
• multifaceted protection; smooth start; rewinding of the motor stator is possible;
• built-in valve parts in contact with the liquid are corrosion resistant;
• many additional options.

Disadvantages:

• small pressure;
• installation costs a little less than the electric pump itself.

According to reviews: many pluses and a minimum of minuses - an elite high-quality pump that pumps premium water.

What borehole pumps to buy

1. If you need to irrigate agricultural crops in large areas, 4SR 15/10-F from Pedrollo will do.

2. For a small family living in a house with several taps, ECO VINT1 from UNIPUMP or MICRA HS 302 - 6 from DAB will fit.

3. For an average family living in a house with a complete set of plumbing and household appliances, the best option would be TF3-60 from Belamos or BTsPE 0.5-32U from Aquarius.

4. Owners of houses with a pool and a fountain can purchase a Water cannon PROF 110/110 from JILEX or 4BLOCKm 4/14 from Pedrollo.

5. For residents of several cottages with one well, Neptun fl120 60M from ESPA is suitable.

6. Customers who are satisfied with the quality of fluid from a sand well can install Elpumps BP 1/4.

When buying, you also need to take into account that for an expensive downhole unit there is always a cheaper, but not inferior in quality, alternative.

vyboroved.ru

Negative consequences of well pollution during operation

In the vast majority, not only after drilling, but also during operation or after a long downtime, pumping a well is most often necessary for sandy species. The bottom of their aquifer usually consists of sand, clay or pebbles, silting leads to the following negative consequences:

Reducing the depth of the water source

This can have negative consequences for submersible electric pumps located at a small distance from the bottom - filters and components of the working mechanism supplying water will begin to clog with dirt, which will lead to an accelerated failure of pumping equipment.

Water quality is deteriorating

In addition to the fact that the silted bottom approaches the water-sucking units, the rising water, passing through the silted layer, carries with it small particles of dirt, which contribute to the turbidity of the liquid. Water becomes unfit for drinking and domestic use, and it becomes too expensive to clean it with filters.

Debit is falling

The water pressure is prevented by a layer of dirt formed during the silting process, which resists its passage. Water may simply not be enough for domestic needs if the pump pumps out all the water from the well.

The water level is dropping

A drop in static and dynamic levels is a consequence of a change in flow rate and can lead to dry running of operating electric pumps.

These negative consequences do not appear immediately and serve as signs indicating the need to pump the well source.

Requirements for electric priming pumps

Not every electric pump pumps out contaminated water, for example, the answer to the question - “is it possible to clean the well with vortex views?” will be negative. Vortex models, due to their design features (small gaps between the impeller of the vortex wheel and the walls of the working chamber), are absolutely not intended for working with contaminated water. When choosing the right pumping equipment, the following criteria should be followed:

Well Compliance

A pump for pumping a well must be suitable for its parameters, primarily due to its pressure and immersion depth.

Water Quality Compliance

The polluted bottom of well sources may consist of various fractions: sand, clay or pebbles. The type of pumping device must be suitable for the structure of pollution, otherwise its operation in an unsuitable environment will be inefficient and lead to failure.

low cost

It is irrational to spend a lot of money in everyday life to buy an expensive pumping electric pump - when working in a polluted environment, the mechanism of any device wears out faster, and replacing parts in expensive equipment, in addition to its high cost, will lead to even greater costs.

This statement does not apply to organizations involved in the pumping of wells at a professional level. For example, expensive high-quality Gundfos submersible electric pumps, due to their high reliability after many years of operation, are more profitable to pump wells than domestic models.

High performance

This parameter affects the pumping time of contaminated water, which in some cases can take more than a day, and the cleaning efficiency. More powerful models suck up liquid from greater depths, respectively, taking away more contaminants than low-power devices.

The main types of electric pumps for cleaning wells

Due to their design features, several types of electric pumps most commonly used in everyday life can work effectively with contaminated water.

Vibrating

The use of vibration types for pumping dirty water has the following advantages and disadvantages:

low cost. All vibration models belong to products of the budget price category, the minimum cost of the Aquarius pump is about 20 USD.

Simplicity of design. Allows you to repair or replace worn parts without much effort and special equipment.

Working with dirty water. Vibrating electric pumps are best suited for pumping clay contaminants, sand and small pebbles quickly erase their rubber parts.

Principle of operation. The use of vibration pumps adversely affects the casing pipes, causing their deformation, and can also lead to complete silting of the well source due to the compaction of the sedimentary layer during vibration.

Low performance and uptime. These are the main disadvantages of vibration pumps, excluding their use for permanent water supply.

Screw (screw) submersible electric pumps

Screw electric pumps have the following distinctive features:

High price. The cheapest Unipump ECO VINT1 models are 4 times more expensive than vibration models - about 80 USD.

Working with contaminated liquids. The devices work well with very viscous clay soils, sand and small stones wear out the screw.

Simplicity of design. Single-screw household screw pumps have a simple device that allows you to independently clean, repair and replace parts without special skills.

Centrifugal pumps

Centrifugal types are the most common; both surface and submersible types are used to take pumped water from wells, which have the following features:

High price. Centrifugal electric pumps are quite expensive, the price of the cheapest Whirlwind models is 70 USD.

Working environment type. Special submersible centrifugal electric pumps are designed to work with fine solids - this allows them to pump water with sand.

Performance. Centrifugal electric pumps have a high efficiency and pumping volume, they can lift water to the highest height of all types presented.

For efficient pumping of wells, centrifugal electric pumps are most often used, designed to work with large particle sizes. Vibrating types are best used as auxiliary equipment for supplying water under pressure to the bottom of the well, causing mud to rise and mix.

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How does a sand well work?

Sand wells are the most common sources, as they are located on the first layer. This design requires careful selection of the pump. The resulting water will initially be heavily polluted with sand, so not every unit will be able to pump it efficiently. This will create an additional load on the pump, so the sand source requires the use of special powerful equipment.

The aquifer is represented by sand deposits. The porosity of the material is large, and therefore the mobility of each grain of sand is also high. Sandy water flow creates an additional load on the pump. The device cannot pump dirty water for a long time, so it burns out quickly. It is beyond repair. What to do in such a situation? The reasons for the rapid failure of equipment is a poor-quality pump.

Specialists in the field of water supply have developed a method for additional protection of water and equipment from sand. When arranging a hydraulic structure, a natural filter made of fine crushed stone or pebbles is used. This is a good way to stop any sand scouring or movement throughout the well. For greater efficiency, a mesh type of filter is mounted at the end of the casing pipe.

Machine description

The sand pump is a single-stage and centrifugal equipment. The main task of this design is the pumping of abrasive slurries, waters with various impurities. But for effective pumping, a liquid must have certain properties.

The pumped solution must have:

• certain temperature (+5…60°С);
• density up to 1300 kg/m³;
• content of solid inclusions (up to 25%);
• maximum microhardness up to 9,000 MPa.

From the correct choice of pumping equipment for the well, its productivity, durability, and sometimes the operational life of the hydraulic structure itself will depend.

MAIN TYPES OF PUMPS AND THEIR FEATURES

• Vibrating- more often used in wells, since as a result of vibrations they can not only lift sediment from the bottom, but also damage the walls of the wells
• Centrifugal submersible– more than once I was convinced that this is the best solution for wells. During operation, a minimum of vibrations is formed, the productivity is large enough, as is the height of the water rise, and overheating is excluded due to the design features of the engine
• Drainage or self-priming– their use is relevant for shallow wells or as dehumidifiers for caissons

selection of a pump and equipment for a well, criteria

• Water lifting height- these are the total values ​​of the depth of the well (from the point of immersion of the pump to the surface of the earth) and the height of the highest point of the water intake from the ground level. The coefficient of horizontal movement of water is also taken into account if the hydraulic structure is located at a sufficient distance from the house (20-30 meters)
• Well type(on sand, artesian) and casing material - we have experienced in practice the damage that vibration pumps can cause to a PET pipe or downhole filter
• Volumes of water consumption and maximum total loads
• Well flow rate
• Water quality in the well and the presence of solid impurities in it

I advise you to rely on the experience and qualifications of professionals in this matter. We will select a suitable pump, offer it to you at a dealer price, and carry out professional installation.

Now I will answer the questions that our clients most often ask us.

Which pump is best for a well?

Based on personal experience, I can say that for wells, regardless of their depth, the material of the casing string and the type of downhole filter, it is better to use centrifugal (vortex) submersible pumps.

Why?

During operation, they do not vibrate, so they do not raise sediment from the bottom, and most importantly, they are not able to damage the walls of the casing string and the downhole filter. They are also highly efficient and, unlike vibratory pumps, can run longer continuously.

Important!

How to choose a pump The basis of choice is the productivity of the well in relation to the consumption volumes (peak and average).

What types of wells do we drill

Advantages of centrifugal submersible pumps

Centrifugal pumps cannot physically overheat, as the water passes through the motor, which consists of a rotor freely rotating due to the force of electromagnetism, and a stator. A stream of cold water moves between them, providing natural cooling.

If there is no more than 10-15 meters to the water surface from the surface, a self-priming pump can be used, but there are a number of difficulties, including the need for additional maintenance and control.

Below I will review the characteristics of several centrifugal pumps in comparison with a vibrating counterpart, so that it is easier for you to understand the difference in performance.

Pump Model	Power	lifting height	Capacity l/h	Immersion depth	Price
Vibration pump BELAMOS BV012, 25 m	300 W	70 m	990 l	3m	2800 rubles
Centrifugal submersible pump Caliber NPCS- 1.5 / 50-550	550 W	50 m	1500 l	5 m	5300 rubles
Centrifugal submersible pump QUATTRO ELEMENTI Deep 1500 Pro 772-531	1500 W	115 m	5460 l	2 m	19500 rubles
Submersible borehole pump BELAMOS TF-60	900 W	60 m	4000 l	5 m	15000 rubles
GRUNDFOS SP 5A-25 3x400V 05001K25 with dry run protection	2200 W	153 m	6500 l	600 m	67000 rubles
Gileks Vodomet PROF 55/75 House (set for automatic autonomous water supply)	900 W	75 m	3300 l	30 m	26000 rubles

As you can see, the characteristics of the pump directly affect its price, but in each price category there are pumps of different performance. I have been convinced more than once that only a professional can determine the priority selection criteria.

Common mistakes when choosing and installing a pump

So what not to do?

• “The neighbors have one of these, which means it will suit me too” is a classic mistake. Two wells located 20-50 meters apart can vary greatly in flow rate. In addition, it is important to take into account such factors as material, casing diameter, bottomhole filter type, consumption volumes.
• "I'll buy more powerful - in reserve" is another common misconception. First, why pay more? Secondly, a pump that is too efficient can kill a well with a low flow rate by volley pumping. We often had to repair a well, the water quality of which was lost precisely because of the wrong choice of pump
• "I'll do all the calculations myself"- even many of my colleagues who switched to free bread do not always make calculations with high accuracy - there are too many factors and coefficients to take into account. Better leave it to the professionals

Classic when installing pumping equipment yourself:

• Incorrect choice of installation depth
• Incorrect fastening of the pump on the carrying cable, as a result of which part of the load falls on the power cord
• Incorrect connection to the mains

IMPORTANT!

Do-it-yourself installation - is it necessary? I strongly recommend not to regret one or two thousand rubles for the work of specialists who will make all the calculations and carry out the installation correctly.

The optimal installation depth of the pump between the bottom and the water surface for standard water intake

Here we completely turn off the fantasy - the installation depth of the pump is a constant value recommended by the equipment manufacturer. The nuances take place only for high-performance models with a large installation depth. In this case, at least one meter of water column must remain to the bottom of the well.

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At what depth should a submerged pump be installed for pumping a well?

At the stage of pumping a well, we always pursue the same goal - to pump out sand and turbidity from the bottomhole. It is irrational to do this with a centrifugal pump, since they are very sensitive to the presence of fine solid impurities in the water.

Therefore, for pumping (if possible), a vibration pump with a lifting height of up to 80-110 meters is used.

They are not afraid of sand, and they can be installed almost at the very bottom in order to pump out unnecessary dirt from the well to the maximum.

If the well is pumped by a centrifugal pump, then at least one meter must remain to its bottom, as required by the instructions for the equipment.

Dry running protection for borehole pump

Imagine such a situation - you are not at home, a tap leaked, and as a result, the pump pumped out all the water from the well and continued to work.

The result is the replacement of expensive equipment, since the plastic impeller will not withstand high temperatures. If it is protected from dry running - relays, special floats and automation, then such incidents are excluded.

Drilling cost calculation
fine sand wells

Select your region: Solnechnogorsk District Istrinsky District Dmitrovsky District Odintsovsky District Krasnogorsky District Klinsky District Narofominsky District

If you are not in your area, please call us and we will make an individual calculation.

Casing pipe HDPE Pipe PVC-U 129 mm

Filter: For HDPE (stainless steel). For PVC-U (slotted with spraying).

Cable conduit for borehole pump. submersible pump cable extension for a well

I can assure you that you will not find a pump that comes with an electrical cable of the same length as the lifting height for which it is designed, because 120 meters of cable is a lot. The maximum that the manufacturer offers is 15-30 meters.

How to be? Ramp up! I categorically do not recommend doing this on your own, but if you still decide, then here are some of my professional tips:

• Use a submersible cable- yes, it is a little more expensive, yes - there will be no disaster if you take a regular one, but if for some reason damage occurs in a simple cable, the consequences can be serious. Submersible is designed for direct contact with water, it is better
• Connection must be at maximum height from the water surface - do not cut the cable just before entering the pump - cut the plug
• Use special connectors and epoxy resin for hermetic sealing of the joint or special heat shrink sleeves
• Use an appropriate cable section corrected for resistance along the length

In general, everything is not simple here either, so I recommend leaving this work to specialists.

Pump and automation for sand wells

Wells for sand in the Moscow region are used mainly for irrigation in garden plots.

The flow rate in such wells is usually low and variable, and the water quality is low, as it contains a lot of sand.

The optimal solution is a submersible vibration pump. It is affordable, picky about water quality.

The subtleties of installing a vibration pump
When installing the pump, it is important to fix it so that it does not touch the walls of the casing string or the bottom filter, otherwise vibrations can lead to mechanical damage to the equipment or the structure itself.

We automate the system based on the vibration pump

The easiest option to automatically turn off such a pump is a switch with a timer.

If you know the flow rate of the well, and it is, for example, 500 liters per hour, and your pump pumps this volume in half an hour, then simply set the timer for 20 minutes to select the desired volume of water, and go about your business.

You can also use a float system.

Inefficient pump for a well with a low flow rate

Wells with low flow rates present a serious problem. I often came across the fact that people are looking for low-performance pumps as a solution, but you will not find them, because even the smallest pump has a minimum capacity of 450 liters per hour, and if the well flow rate is 250 liters, then this discrepancy is almost doubled.

What to do? I suggest the following solution:

• We install a storage tank for 500-1000 liters in the basement or in the attic. If in the basement, then with a membrane to maintain pressure, if in the attic, then without
• We connect automation to the tank in order to constantly keep it full
• We install automation to protect against dry running in the well

What do we get as a result? Your country house is provided with water, because even with a very strong desire, you will not make a salvo discharge of 500 liters. The volume of water in the bathroom is 200 liters, one wash in an automatic machine is 60-80 liters, a toilet tank is 8-15 liters.

The pump works in segments of 5-7 minutes, if necessary, replenishing the tank or stopping work if the water in the well goes below a certain level. Problem solved!

Is a vibration pump harmful to a well?

Harmful, and I'll tell you more, if installed incorrectly, it will destroy the well faster than you think. Vibration is to blame. Sometimes the use of a centrifugal type pump is irrelevant, and in these cases it is important to at least follow the installation rules:

• Install the vibration pump at least 1.5 meters above the bottom of the well
• The pump should not touch the walls of the casing - it should hang freely in the water column
• I also recommend using models with an upper water intake - this way it will disturb the face less

Water hammer when turning on the pump and strong shock when turning it off

Water hammer in the water supply system not only leads to the failure of plumbing, but also the pumping equipment itself. This phenomenon occurs when the pump is directly wedged into the system.

It is easy to avoid this - for this I advise you to definitely use membrane accumulators. They dampen sudden pressure surges in the system, extending the life of your expensive plumbing equipment.

Features of maintenance of pumping equipment

During my career, I have come across this issue many times. In fact, in the case of proper installation and operation, the submersible pump does not require additional maintenance. Some models require pre-lubrication of individual elements immediately before installation - nothing more.

When using centrifugal submersible pumps for pumping water with sand impurities, repair may be required - replacement of impellers. All these works should be carried out only by a professional - on your own you can only do harm.

Pump modeAlways follow the operating mode recommended by the manufacturer, do not overload the pump, then it will work properly throughout the entire operating period.

Autonomous water supply has become a dream for many residents in the Russian Federation.

This is especially true for owners and land plots.

The reason is also in the constant deterioration of the quality of carriers on central highways.

Then from the very beginning it is necessary to decide on the choice of such a device as a borehole pump for dirty water.

Downhole pumps for dirty water have found application in various areas of life:

• Filling containers in fire fighting systems.
• For those who extract thermal water.
• Provision of construction and industrial facilities.
• Supply of fountains.
• When irrigating crops.
• For the needs of drinking and households.

Submersible pumps. About their varieties

• Vibration pump deep for dirty water. They are considered a universal solution. Used for irrigation in suburban areas. Differ in simple service, small dimensions.
• Screw pumps. They work even if impurities are contained in the amount of forty g / m3. Able to function at a depth of up to fifteen meters, form a pressure of 90 meters.
• For vortex models, the maximum possible amount of sand is the same 40 grams per cubic meter. But the depth of operation is increased to 30 meters. The pump inside consists of a special wheel. The water supply is based on the swirling principle. Such devices create a high pressure indicator, although they weigh very little.
• The centrifugal type models differ in power. They are capable of lifting water from a depth of up to 200 meters. The pressure exceeds a hundred meters. The presence of built-in thermal protection is an additional feature.

Features of the choice of borehole pumps

First, the buyer is determined with the parameters that must have. After that, there will be very little to do. Here are some examples:

• 3-4 people live in the object. They consume 1.2-1.6 cubic meters of liquid per hour.
• We were engaged in the construction of a hydraulic tank, with a 100-liter capacity. In the on state, pressure up to 2 atm should be maintained, and in the off state - 3.5.
• The distance from the house to the well is 15 meters.
• 20 meters is equal to the dynamic level.
• The performance indicator is up to three cubic meters per hour.
• The borehole diameter or casing pipes differ in size of 133 meters.
• Finally, a well was dug to a depth of 50 meters.

We can easily fit pumps with 3-4 inches, if you look at the borehole dimensions. Only after that we calculate the performance we need.

First you need to find out what height of water rise in the well we need:

• 20 meters or 2 atmospheres is an indicator of the dynamic level.
• 0.15 atmospheres or 15 meters - the distance between the house and the well.
• There is a 3.5-atmospheric pressure indicator when two conditions are met simultaneously: the pump is turned on plus running out of water in the GA accumulator.

It is necessary to add the values ​​​​that we received: 2 + 0.15 + 3.5 \u003d 5.65 atmospheres. If you translate them into meters, it will be 57. This is the minimum level of pressure that is required in these specific conditions.

But it is necessary to take a closer look at the performance in the pipeline and pressure losses. Sometimes these indicators can be quite a lot.

Especially if the diameters of the outlet of the pipeline and the ones responsible for transporting the liquid do not coincide with each other. About 10-20 percent are usually losses on fittings and pipes.

How to decide on a brand

Rapid failure becomes the performance of equipment at a low level of quality.

It is best to trust manufacturers whose reputation is beyond doubt.

Here are just a few brands that have already earned the recognition of buyers around the world.

• Russian Belamos.
• Water Technics from Taiwan
• Lowara from Italy.
• Pedrollo from Italy.
• Grundfos from Denmark.

A separate discussion deserves a series of pumps SQE, released by the manufacturer Grundfos. The main difference from analogues is the presence of the so-called frequency converter. Thanks to this detail, the likelihood of water hammer is reduced.

Starting currents remain not as high as usual. There is an electronic unit responsible for remote control.

It would be best to contact a company that has a license to provide the relevant services. But there are always moments that deserve special attention.

• The smaller the diameter of the device, the better. Then the probability of jamming will be much less.
• The installation of pumps is carried out 1 meter below the place where the dynamic water level is located.
• Well heads with water supply pipes should be below the level at which the soil begins to freeze. For this, the head is placed in a caisson. Instead, you can use an adapter, this device has a more affordable price.
• The length of the cable and the power of the pumps determine the cross section that the power cable must have.
• With plastic clamps, the cable is attached to the HDPE pipe, this is done every 3-5 meters.
• Two cables are recommended to be connected using a heat shrink type sleeve.
• Only a stainless cable can play the role of a safety structure.

There are certain rules along with requirements, the observance of which ensures uninterrupted operation for a long time. For example, water for these devices is not only a working fluid, but also a coolant. Pumps generally cannot work properly without water.

The liquid level sensor will help to avoid the so-called "dry mode" of operation. Thanks to this sensor, the power supply is turned off if the water level drops below critical levels.

Literally all parts of the device must be made of stainless steel. The cost in this case will be higher than that of analogues from others, but the costs pay off.

• Stainless steel parts do not have any effect on the taste of water, its composition.
• When oxidized, such structures are not destroyed.
• Because of what the cable does not break, and the pump does not fail ahead of time.

What causes borehole pumps to fail?

Most users are accustomed to the designation of only indirect signs for breakdowns.

These may include high electricity consumption, vibrations with interruptions in water supply, high noise levels, reduction, and so on.

The main thing is not to lead to a serious accident, to start acting when even the slightest signs appear.

The pump must be immediately lifted to the surface in order to carry out a thorough inspection.

Fine suspended particles, together with water, have the most serious effect on the pump.

It is possible to have various:

• After that, the sensors stop working correctly.
• Maintaining too high a temperature of the pumped water.
• Incorrect fixation at the steel safety cable on the head.
• Power and supply circuits operate with poor signals.
• An unprotected pump is adversely affected by high voltage surges that occur too often.
• Approximation of the dynamic level to the mark of a critical nature. Because of this, parts rub against each other more. Overheating of nodes that rotate appears. The power consumption is growing. Finally, the level of resistance rises.
• The housing is broken tightness, which leads to the penetration of moisture inside. Because of what there are failures in working electronics. The operation of the entire device is disrupted. A possible result, if inactive, is the appearance of short circuits.
• Fibers together with abrasive particles have a negative effect.

In any case, the pump must be raised to the surface. But one can only study indirect signs, and follow the path of exclusion. It is required to carefully inspect each of the parts in stock.

In the same way, the electric motor is checked. Be sure to check the power supply.

Troubleshooting the pump

Situations with a decrease in the dynamic level inside the device cannot be attributed to the group of serious breakdowns. But this situation has a direct impact on the performance of the device.

The pump quickly fails if it runs in a "dry mode". If this is what caused the problem, the pump is first lowered to a depth recognized as safe.

The valve is one of the parts operating in the mode of constant wear. It must be changed if water flows through the device, where there is too much sand.

Clamps with stainless steel cable are the perfect solution for any system. The electrical cable is responsible for the flow of electricity.

A good pump is a device with difficulties not only in technical terms. He also has other whims.

The most stringent requirements relate to the electricity network, stable operation. Plus or minus ten percent is the tolerance for most classic pumping stations.

In the case of submersible pumps, a deviation of 5 percent is allowed. It is better to put voltage stabilizers, then the supply voltage will flow without interruption.

Choosing the right pumps requires careful calculation, but it's not as difficult as it sounds.

How to distinguish a pump for dirty water from a drainage one is presented in the video:

A well pump is perhaps the most important component of any well. It is the pump that supplies water from the source to the pipes, ensures its constant flow.

There are many varieties, but today we will focus on screw models, as they have a very interesting design and principle of operation.

1 Features and purpose

Modern well pumps can be surface and submersible. In the first case, we consider a powerful pump with a rotor, which pumps water by sucking it through the working chamber. These devices do not differ in excessive performance and are capable of lifting water at a depth of up to 10 meters.

Submersible pump models are special equipment that pumps water while being directly in a well or well. They are immersed under the water column and left there for the entire time of operation. Submersible models are much more powerful and productive than their surface counterparts.

They are able to work at a serious depth and give out pressure from 50 meters of water column. Feedback from users also suggests that submersible pumps do their job much better, although they are more expensive.

A screw well pump just refers to submersible pumps that are engaged in pumping water from a well. It is called screw due to the fact that the main working mechanism in it is the “Archimedes screw”. This is a rather important nuance, since almost all submersible models for pumping water are equipped with centrifugal elements.

2 Types, characteristics and reviews

If we talk about specific varieties of screw pumps, then there are not so many of them. This is due to the fact that the screw pump itself is a type of submersible equipment.

However, it should be emphasized that screw submersible pumps can still be divided by working depth. According to this parameter, they are divided into:

• Standard;
• Deep.

Standard screw pumps are intended for use in wells and shallow wells. These can be sand wells that extract water from sandy aquifers. Their depth rarely reaches 20-25 meters, and the flow rate is relatively low.

For such conditions, the screw pump is best suited, as it is able to deliver a stable pressure and practically does not react to working with contaminated liquid.

2.1 Popular manufacturers

It is worth paying attention to the manufacturers of screw models of pumping equipment. Moreover, a lot depends on the manufacturer now. Large companies are interested in satisfied customers around the world. Therefore, you should not expect a dirty trick from their products.

Screw pumps Aquarius of the BTsPE series are very popular now. They are practical, productive and at the same time extremely compact. These products can be installed in wells up to 110 mm in diameter, which is an achievement in itself.

Also on the market there are screw pumps from the Belarusian company of the same name. They are renowned for their low cost and build quality.

From foreign manufacturers, it is worth paying attention to Unipump pumps. They cost a little more, but the high price is offset by extreme reliability and practicality during operation.

2.2 What is the installation technology of screw pumps?

By and large, submersible screw pump models are mounted in the same way as any other downhole stations. Nothing extraordinary is required of you here, although some attention should still be paid.

2.3 How does a screw pump work? (video)