Individual water supply to a private house cannot be imagined without pumping equipment, delivering water to the consumer, for this, several modifications of electric pumps with different operating principles are used. One of the popular types is the screw pump for the well, mainly used for withdrawing water from springs whose water basins are located on the sand.

Screw (screw) electric pumps, presented on the market by submersible models, are produced by many leading domestic and foreign manufacturers of pumping equipment, their cost does not go beyond the average price range for this category of units. In order to choose the right electric pump, several classes are considered with a different principle of operation, while a screw well pump, under certain conditions, has some advantages over other varieties.

Rice. 1 Popular models of screw pumps

Pumps installed for pumping water, depending on their location relative to a water source, are conventionally divided into two groups: surface and submersible.

The first ones are installed on the ground next to the well, for water intake a pipe or a pressure hose is lowered into the mine, while the maximum suction depth (location of the water mirror from the surface soil layer) does not exceed 9 m. technical characteristics with a maximum volume of pumped liquid of 5 m 3 / h and a pressure of about 50 m, the efficiency of devices is not more than 50%. Usually surface aggregates are included in the package pumping stations, representing a single unit, in which, in addition to the electric pump, a hydraulic accumulator and a pressure gauge are installed.

Submersible pumps are presented on the market in several varieties with different operating principles, depending on design, cost and quality. well water, they are used in the household for a variety of purposes.

Rice. 2 The principle of operation and design of a centrifugal electric pump

Centrifugal

Centrifugal electric pumps occupy a leading position among other types due to the following design feature arising from their principle of operation - the inlet water flow enters the impeller axis and is displaced by its blades through a branch pipe on the side of the housing. Thus, it became possible to connect any number of centrifugal wheels with chambers (stages) in series with increasing pressure at each stage.

The head in household modifications reaches 200 m or more, the throughput is up to 20 m 3 / h, the efficiency increases with the increase in the dimensions of the pump unit and reaches 65% for high-quality household models of Danish and Italian production.

High-quality centrifugal electric pumps from world-famous European concerns are equipped with internal protection against overheating of the winding in the absence of coolant, have a built-in check valve, expensive models are equipped with an electronic shaft speed control unit, depending on the volume of water consumption, using pulse-width modulation. This solution allows you to reduce the size of pumping equipment, practically eliminating it, and also save electricity, reducing its consumption by 40%.

The consumer is in high demand for centrifugal pumps from the world's best manufacturers of pumping equipment: Grundfos (Denmark), Pedrollo, Speroni (Italy), Wilo (Germany), Russian brands Belamos, Aquarius, Unipump (made in China). It should be noted that the difference in prices between the products of leading foreign companies and products of Russian or Chinese production is quite significant, a high-quality electric pump from Grundfos costs about 1000 USD, while a domestic or Chinese pump with similar characteristics can be purchased for 200 USD. e.

Rice. 3 Vibrating electric pump - device

Vibrating

The manufacturing technology of vibration electric pumps has not undergone significant changes since Soviet times, therefore, there are many Russian brands on the market, there are products of Ukrainian and Belarusian production, there are sufficient Chinese models.

The difference between vibrating electric pumps from other types is the absence of rotating parts and, accordingly, bearings, the principle of operation is based on the reciprocating movement of the coil armature when AC is supplied to its winding. A rod with a piston that draws in water is welded to the armature of the electromagnet; to prevent the outflow of liquid into the source, a check valve is installed near the inlet openings.

Vibration models have a rather low efficiency of about 35%, the maximum volume of pumped liquid does not exceed 1.5 m 3 / h, the head is not more than 80 m.

These characteristics are considered not too high to provide water for a private house with the residence of even one person, therefore vibro-pumps are mainly used for economic purposes: for irrigating garden beds, filling pools, ponds, of various kinds tanks with water, drainage works.

Since vibratory species are not too sensitive to the high content of suspended particles in water, they are often used for pumping wells and wells, extracting turbid water from them with clay-sand fractions.

Vibration pumps are classified as products of the budgetary price category, their minimum cost is about 20 USD, the average price of a typical high-quality unit is 30 USD. On the market, vibro pumps are represented by a large number of domestic (Brook, Malysh, Dachnik, Aquarius, Whirlwind, Bison) and Chinese (Oasis, Patriot) brands.

Rice. 4 Vortex pump - design

Vortex

In vortex types, water is sucked in through the side opening of the hydraulic part of the housing by the impeller blades and then thrown out through the discharge pipe located next to the suction channel.

A feature of vortex pumps is the small distance between the paddle impeller and the walls working chamber required to reduce hydraulic losses, therefore the units operate only in clean water. The highest pumping volume of household electric pumps of the vortex principle of operation does not exceed 5 m 3 / h, the head reaches 100 meters, the efficiency is not more than 50%.

In vortex models for domestic use, the feed wheel is located at the top near the outlet, and an electric motor with a vertical shaft, on which the vortex wheel is mounted, is installed at the bottom.

The suction of the liquid takes place through a perforated filter located around the impeller - by its location in the upper part near the outlet nozzle, it is easy to determine the vortex principle of the electric pump.

On the market, vortex pumps are less common than centrifugal models, domestic manufacturers are represented by the brands Belamos, Whirlwind, Unipump, the Italian submersible pump Pedrollo Davis is popular.

Rice. 5 Progressing Cavity Pump - Interior and Auger Assembly

Screw (auger)

Electric pumps that suck and eject water by the Archimedes screw method are called screw pumps, this is the second most popular group after centrifugal ones. In household appliances, the auger is located in the upper part and is connected through an adapter sleeve to the motor shaft.

The advantage of screw electric pumps is the simplicity of the design and the possibility effective work with cloudy and dirty water, as well as with viscous media, thanks to last feature screw modifications are widely used in industry for pumping oils and refined products.

There are no electric auger pumps on sale from the world trade leaders (Grundfos, Wilo, DAB, Pedrollo, Speroni), the units are represented by the well-known Russian brands Belamos, Jemix, Vikhr, Unipump Eco Vint, Aquarius, the Sturm group of companies.

On sale you can find screw electric pumps and less popular brands of Russian and Chinese production: Boss, Alba, Oasis, Patriot, Vodotok, as well as Octopus from the Ukrainian company Varna from Kharkov.

Note: A distinctive feature of domestically produced vortex electric pumps is perforated rectangular holes in the upper third of the building, through which water is taken.

Rice. 6 Working principle of the screw pump

The principle of operation and design of the screw pump

In a standard household auger electric pump, the working screw is made in the form of a spiral pin made of a corrosion-resistant material, which is chrome-plated steel, stainless steel or high-strength plastic. The liquid sucked in by the rotating screw enters the cage made of technical polymer, and then is pushed out into the upper outlet of the electric pump.

The screw electric pump used in everyday life consists of the following main units (Fig. 7):

1 - The electrical part with a vertically located single-phase electric motor with a dry rotor and an oil-filled chamber separating the engine compartment from the hydraulic part, a starting capacitor is located inside the lower part of the housing.

2 - The hydraulic part consists of a body, a water intake filter and a working auger rotating in a cage made of elastic polymer (rubber) - a screw and a rubber sleeve assembly pushes the liquid entering the body through the perforated holes 3 to the outlet pipe.

3 - The intake part is a stainless steel cylinder with holes made in the side walls to draw in water.

4 - On the top cover of the pump, made of brass or stainless steel, there is an outlet pipe and lugs.

5 - The outlet pipe is made with internal thread with a standard diameter of 1 inch, a check valve and a water lifting sleeve are attached to it.

6 - A nylon or metal cable in synthetic protective insulation is tied to the lugs.

Rice. 7 Constructive device screw pump

Distinctive features and parameters of electric screw pumps

A typical screw pump for wells used in an individual water supply has the following technical parameters:

• Power supply voltage: alternating 220V ± 10%, with a frequency of 50 Hz.
• Temperature range of the pumped-out liquid: from 0 to 35 ° С.
• PH of pumped-out water: 6.5 - 8.5.
• Working range of ambient temperatures: from 0 to +40 ° С.
• Minimum immersion depth under the water mirror: 0.5 m.
• The permissible volume of mechanical particles in the pumped out water: - no more than 500 g / m 3, the content of fibrous materials in the liquid is not allowed.
• Permissible diameter of mechanical fractions: - 1 mm.
• Maximum head: 3 m 3 / h, in most models it does not exceed the threshold of 1.5 m 3 / h.
• Ultimate head: up to 200 m, this indicator is a rare exception, most modifications create a head pressure of no more than 100 m.

Rice. 8 Main Features of Chinese Oasis

The main advantages of screw electric pumps:

• Low cost, the price of the cheapest models is about $ 80, in general, all models are cheaper than centrifugal types.
• Simplicity of design. The working part consists of a screw and a rubber cage, they are easy to maintain and, if necessary, simply replace, which makes the repair of auger units very simple.
• Due to its principle of operation, the screw pump for a well can transport liquid with coarse fractions of sand and clay deposits - this is its main advantage. A submersible screw pump is preferable to use for water intake from borehole sources on sand, often with a high content of suspended particles of clay and sand. Although their parts are exposed to mechanical action of solid particles, the life of the screw pump in turbid sources will be longer than that of centrifugal models.

The disadvantages of screw aggregates include the mediocre quality of many products (chrome-plated screw, quickly abraded clip) and not too high technical characteristics, which are noticeably inferior centrifugal types, as well as low efficiency, not exceeding 45%.

Application area

We can say that a screw pump for a well, due to its ability to pump out dirty water, is the leader in the number of areas in which it is used in household management. A borehole screw pump is purchased for:

• arrangement of water supply for cottages and wells;
• filling artificial ponds, pools, heating and drip irrigation tanks;
• irrigation of vegetable gardens, orchards and any areas with plants in the backyard;
• drainage in case of flooding of basements, cellars and basements in the house;
• pumping wells after drilling operations, some professional firms specifically purchase screw pumps for these purposes;
• cleaning wells and wells from silt deposits.

Rice. 10 Parameters of the screw pumps of the Unipump Eco Vint series

Well installation rules

To immerse the electric screw pump in the well, either an adapter is used, to which a cable is tied and a water supply pipeline coming from the unit is attached. Usually, before immersion, the pressure hose, the power cable and the retaining cable are tied together with insulating tape or plastic ties, the following rules are observed during installation:

• Water-lifting pipes can be selected from low-pressure polyethylene (HDPE), steel or flexible elastic polymers, the main condition is the ability to withstand the maximum pressure in the system and the internal bore diameter not lower than the thread inside the outlet pipe.
• When using a flexible hose, make sure there are no kinks or kinks.
• For lowering and lifting, use only a nylon or metal (stainless) cable; it is forbidden to suspend the unit by an electric cable.
• Before diving, make sure that the inner diameter of the casing string is higher than the outer dimensions of the pump casing together with the electric cable, and that the pipes do not have bends or narrowed sections.
• It is not recommended to place the power supply cable in a coiled coil - this leads to its overheating and melting of the insulation.
• The minimum distance of the pump from the bottom of the well is 0.5 meters, the optimal one is 1 m.
• It is forbidden to operate the pump on a closed tap - this will lead to its failure.
• Installation in the control system is mandatory, even if there is an internal protective automatics against overheating of the winding.
• When installing modifications that do not have a built-in check valve, it is installed on the outlet pipe in front of the water-lifting pipeline.

Rice. 10 Installation and connection diagram of the auger unit

When comparing which borehole pump is better: centrifugal or screw, there is no single answer, since the field of application of these pumping units is slightly different. Screw electric pumps are usually used in situations where you have to work with contaminated water, while, due to their relatively low technical characteristics, the well should have a shallow depth or be located closer to an individual house. It is impossible to find European-made auger pumps on the domestic market, all goods are supplied to the distribution network by domestic and Chinese firms, therefore, user reviews regarding the quality and materials of production of screw units are contradictory.

Screw pumps are one of the ways to solve the water supply problem, which is suitable for a private house, a small farm. These unpretentious devices become the only way out if there is a lot of sand in the well. Equipment of this type works even with strong sandy or silted wells, it lifts water with sand, as well as sand with water, without breaking or clogging. Therefore, for weak wells, Abyssinian wells, screw pumps for water are reliable option, which depends little on the state of the source.

One of the varieties of the screw pump in section

Progressing Cavity Pump Advantage

The ability to pump water with a large number of impurities is provided by the special structure of the internal part of the device.
To understand how a downhole screw pump works, it is enough to consider an ordinary kitchen meat grinder, where the main part - a screw or auger - rotates and advances minced meat or other consistency. In the pump, it is placed in a rubber casing, connected to the engine by means of a cardan shaft. Devices designed for pumping large volumes have rigid shells and are able to withstand significant pressure.

When the shaft rotates, the screw moves, which follows the developed trajectory - the screw turns and rubberized inner surface form cavities that continually rise towards the supply hose or pipe.
The liquid moves into the chamber, the pressure forces it to continue moving upward, vacuum regions continue to form in the inlet pipe, which ensures uniform water supply from the well.

The design excludes the reverse movement of water, and also allows the mechanism to cope even with viscous inclusions (this expands the scope of the device - it is used to pump various substances with different degrees of viscosity)

If you carefully examine the sample (or, again, a meat grinder), you can see that there is no place for sand or other inclusions to get stuck or linger - they rise along with the flow of liquid.

This design gives an undeniable advantage over equipment for moving water of the vortex and centrifugal types, since it is the screw pumps for wells that extend the life of the water source and ultimately save a significant amount.
According to the classification, screw pumps are self-priming devices with a multistage structure. The developed lines of compact models make even weak wells with a minimum diameter viable.

The choice of the optimal equipment is influenced by where it will be installed. For installation in a well, samples are suitable that are attached to the wall of the well shaft.
When installed in a well, it is easier - you need a sample with a strong cable. For a home, a model designed for standard voltage is suitable.

Types of screw structures

Such devices are single-screw or multi-screw. For individual use, a single-screw design is usually used, this is enough to provide a house or small household with water.
To prevent sand in the drinking water, a filter is installed at the inlet pipe rough cleaning with a cell that retains particles with a large diameter

In the picture, the filter is already on the pump.

If necessary, the resulting water is filtered - subjected to fine purification.
To determine the need for additional filtration, a water analysis is carried out.

Rules for the operation of the screw pump

In addition to stable performance that does not depend on water quality, the borehole screw pump allows for self-installation.
The internal structure, in which there is literally nothing to break, together with high-quality materials relieve you of the worries of solving the problem for a long time - screw version has been working for at least 10 years, not reminding of itself and not requiring much attention.

• The screw pump for the well is cooled during operation - this is done by the pumped liquid. Thanks to this, the auger moves smoothly, no additional seals are required. The motor is located below the inlet holes, this protects it, there is a natural cooling
• In addition, the design makes the operation of the device almost silent - it is inaudible, even if the well is located within the house.
• The well will remain operational longer, since there is no vibration that affects the source
• Even in case of breakdowns and malfunctions, it is quite possible to replace parts on your own - the design is so simple that a person can do it without special skills
• Work screw submersible pump can not only in wells - there are no requirements for the position of the device: it is located horizontally and vertically. This allows you to freely use it when pumping water from rivers, reservoirs, other containers and sources.

Disadvantages of screw pumps

With its versatility and incredible reliability, screw pumps have disadvantages - a very short list:

• A durable screw well pump is expensive - there are cheap options, but they are relatively cheap. This is due to the technological complexity of its production.
  There are affordable models, but they are short-lived - for one or two seasons, so if you plan to install for a long time, it is better to consider the products of firms, Russian or foreign with a price of $ 200 and the corresponding quality
• The screw pump for a well is not able to work idle - it will fail
• The volume of liquid supplied cannot be adjusted.

Well installation

Installation of a screw pump in a well is standard, there are no special features. This is an elongated cylinder with a cable in the upper part, supplied with a power cable, depending on the design of the cables, there can be several. A hose or pipe for supplying water of the appropriate length is connected to the outlet.

During installation, the depth at which the submersible screw pump will be placed is calculated, after measurements a mark is placed on the rope or cable.
Some pumps are supplied float switches, therefore, before installation, you should study the instructions, if provided, connect it.

It is important to firmly secure the cable, if the equipment breaks and falls into the well, it will be difficult and expensive to get it

Indicator correct installation quiet operation, no noise, vibration, knocking.

Progressing Cavity Pump Manufacturers at a Glance

Almost all manufacturers have a range of electric pumps of this type.

• The products of the Ukrainian manufacturer "Vodoley" are popular. Narrow, suitable for wells with a small diameter (at least 10 cm), relatively inexpensive. Can be used for corrosive environments

• "Belamos" (Belarusian brand) - stainless steel models, often equipped with additional thermal protection of the engine. You can use a device with any power. Options available for small casing diameters

• Unipump (Chinese manufacturer) is a cheap, reliable option for sources and wells for which low equipment performance is recommended. Even if at the same time a well or a well produces water with a large amount of sand and impurities, this has no effect on the operation of the pump. This is a well-known company whose goal is to provide consumers with affordable, workable technology. Judging by customer reviews, in most cases the manufacturer succeeds

• Grundfos is an expensive brand under which quality equipment is supplied. There are models with a diameter of 75 mm and more, suitable for low-productivity wells and wells, pumping water to 55 meters. Other screw pumps are presented, capable of operating in various wells with different capacities.

Conclusion

If the water in the well is of poor quality, with sand and silt, the problem will be solved by a submersible screw pump. It is able to lift water with sand without failing at the same time, and is also used to clean silted and clogged wells.
Buying not even the cheapest screw equipment will cost less than drilling a new well.

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

MAIN TYPES OF PUMPS AND THEIR FEATURES

• Vibrating- they are more often used in wells, since, as a result of vibrations, they can not only raise sediment from the bottom, but also damage the walls of wells
• Centrifugal submersible- more than once convinced that this the best solution for wells. During operation, a minimum of vibrations is formed, the performance is quite high, 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 pump and equipment for the well, criteria

• Height of water rise- 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 encountered in practice damage that vibration pumps can inflict on a PET pipe or downhole filter
• 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 personal experience, I can say that it is better to use centrifugal (vortex) submersible pumps for wells, regardless of their depth, material of the casing walls and the type of bottomhole filter.

Why?

During operation, they do not vibrate, therefore they do not lift sediment from the bottom, and most importantly, they are not capable of damaging the walls of the casing string and the bottom hole filter. They are also characterized by high performance, and unlike vibration pumps, they can run for longer in continuous operation.

Important!

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

What types of wells do we drill

Pros of centrifugal submersible pumps

Centrifugal pumps physically cannot overheat, since water passes through a motor, which consists of a rotor that freely rotates 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 mirror 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 performance of several centrifugal pumps versus a vibratory counterpart to help you understand the difference in performance.

Pump model	Power	Lifting height	Productivity l / hour	Immersion depth	Price
Vibration pump BELAMOS BV012, 25 m	300 watts	70 m	990 l	3m	2800 rubles
Centrifugal submersible pump Caliber NPTsS- 1.5 / 50-550	550 watts	50 m	1500 l	5 m	5300 rubles
Centrifugal submersible pump QUATTRO ELEMENTI Deep 1500 Pro 772-531	1500 watts	115 m	5460 l	2 m	19,500 rubles
Submersible borehole pump BELAMOS TF-60	900 watts	60 m	4000 l	5 m	15,000 rubles
GRUNDFOS SP 5A-25 3x400В 05001K25 with dry run protection	2200 Wt	153 m	6500 l	600 m	67,000 rubles
Dzhileks Vodomet PROF 55/75 House (set for automatic autonomous water supply)	900 watts	75 m	3300 l	30 m	26,000 rubles

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

Frequent mistakes when choosing and installing a pump

So what shouldn't you do?

• "The neighbors have this - it means that it will suit me as well"- a classic mistake. Two wells located 20-50 meters apart can vary greatly in production. In addition, it is important to consider factors such as material, casing diameter, type of bottomhole screen, consumption volumes.
• "I will buy more powerful - in reserve" Is another common misconception. First, why overpay? Secondly, a pump that is too efficient can ruin a well with a low flow rate by salvo pumping. We often had to repair a well, the quality of water in which was lost precisely because of the wrong choice of pump
• "I will do all the calculations myself"- even many of my colleagues, who have switched to free bread, do not always make calculations with high accuracy - too many factors and coefficients need to be taken into account. You better entrust it to professionals

Classic when installing pumping equipment yourself:

• Incorrect installation depth
• Improper attachment of the pump to the support cable, as a result of which part of the load falls on the power cord
• Incorrect connection to the mains

IMPORTANT!

Self-assembly - 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.

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 pump mounting depth is a constant value recommended by the equipment manufacturer. The nuances apply only to 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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To 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 mud from the bottom of the hole. Doing so centrifugal pump irrational, since they are very sensitive to the presence of fine-grained solid impurities in the water.

Therefore, for pumping (if possible), a vibration pump with a lift 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 should remain to its bottom, as required by the instructions for the equipment.

Dry running protection for borehole pump

Imagine this situation - you are not at home, the 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 cannot withstand high temperatures. If it has protection against dry running - relays, special floats and automation, then such incidents are excluded.

Drilling cost calculation
wells for fine sand

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

If you are not our area, call us back, we will make an individual calculation

Casing pipe HDPE PVC-U pipe 129 mm

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

Borehole pump conduit. well submersible pump cable extension

I can assure you that you will not find a pump that comes with an electric 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 do not categorically recommend doing this on your own, but if you nevertheless decided, then here are some of my professional advice:

• Use a submersible cable- yes, it is a little more expensive, yes - there will be no disaster if you take an ordinary cable, 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
• The connection should be at the maximum height from the water mirror - do not cut the cable just before entering the pump - cut the plug
• Use special connectors and epoxy for hermetically sealed joints or special heat shrink sleeves
• Use a cable of the correct size corrected for resistance in length

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

Pump and automation for a well for sand

Sand wells in the Moscow region are mainly used for irrigation in garden plots.

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

The optimal solution is a submersible vibration pump. It is affordable, not picky about water quality.

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 or the bottom filter, otherwise vibrations can lead to mechanical damage to the equipment or the structure itself.

We automate a system based on a vibration pump

The easiest option for automatically turning off such a pump is a timer switch.

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 take the required volume of water, and leave to go about your business.

A float system can also be used.

Low flow pump for a well with low flow rate

Wells with low flow rates are a serious problem. I have often come 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 flow rate of a well is 250 liters, then this is almost a twofold discrepancy.

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 maintain it at full
• We install automation to protect against dry running in the well

What do we get as a result? Your country house provided with water, since 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 machine wash in an automatic machine is 60-80 liters, toilet cistern- 8-15 liters.

The pump works in sections for 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 the vibration pump harmful to the 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 pump is irrelevant, and in these cases it is important to at least observe the installation rules:

• Install the vibrating 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 - so it will less disturb the bottom

Water hammer when turning on the pump and strong shock when turning 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 wedged directly into the system.

Avoiding this is simple - for this, I advise you to definitely use membrane accumulators. They dampen pressure surges in the system, extending the life of your expensive plumbing fixtures.

Features of servicing pumping equipment

During its professional activity I came across this question many times. In fact, in the case correct installation and operation of the submersible pump does not require additional maintenance. Some models require pre-lubrication individual elements just before installation - nothing more.

When using centrifugal submersible pumps for pumping water with sand impurities, repairs may be required - replacing the vane disks. All these works should be carried out only by a professional - you can only harm yourself.

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

The efficiency of autonomous water supply systems largely depends on the correct choice of equipment, deciding which one is best for a well, it is recommended to listen to the opinion of experts and read the reviews of the owners of various models of units.

The choice of a submersible pump for a well should be based on an analysis of operating conditions, an assessment technical features source of water.

First of all, pay attention to the following characteristics:

• The depth of the hydraulic structure and the maximum possible head of the pumping unit.
• The diameter of the casing, and the possibility of using the pump based on its overall dimensions.
• Water quality, many pumps are not designed for pumping liquids with a large amount of mechanical impurities (sand).
• The required equipment performance (flow characteristics) must meet the needs of all consumers.

Based on these data, you can choose pumps of different price categories.

Budget pumps

If irregular operation of a shallow well is assumed, then it is quite possible to get by with pumps of an inexpensive price segment. At the same time, there is an opportunity to choose models of domestic and imported production.

Perhaps one of the most popular models of domestically produced equipment. The cost of the unit is 5-6 thousand rubles, depending on the configuration and modification. The outer diameter of 102 mm allows the pump to be installed in wells with a cross section of at least 110 mm. The body is made of stainless steel (the main working units of the pumping part are brass).

Provides a water rise of 50 meters, the maximum productivity of the installation is 2.4 cubic meters per hour. It is distinguished by its reliability and unpretentiousness; when installing in a well, remember that the minimum distance to its bottom should be 60 cm, and the immersion depth should be at least 50 cm.

Ideal for providing household and suburban needs, can be operated all year round, compatible with automatic control systems.

differs in small dimensions and minimum power consumption (up to 750 W). It can be used to provide water to consumers of various groups, while the maximum flow rate reaches 3 cubic meters of water per hour.

The optimal well depth is 20 meters, while the pump can be installed in hydraulic structures with an internal cross-section of 85 mm or more. A feature of the models of this series is the use of a floating impeller, which makes it possible to increase the reliability of the pump when pumping water with mechanical impurities (sand). The cost of units of this series starts from 6 thousand rubles.

... The products of this brand have always been distinguished by quality and reliability, and this model also belongs to the budget price segment. The pump power of 1.73 kW allows for a flow rate of up to 7.5 cubic meters per hour, while the maximum head is 106 meters.

The unit is equipped with protection against voltage surges, dry running, which significantly increases its working life. It can be used as part of automated water supply systems, provides filling of various reservoirs, it is considered a universal pump. The average price is 6 thousand rubles.

At a cost of 7 thousand rubles, it can be used to supply water with an insufficient degree of purification (up to 150 grams of sand per cubic meter of water). The maximum productivity is 3.3 cubic meters per hour, while the pump can be operated at a submersion depth of up to 30 meters (maximum head 45 meters).

Differs in high tightness, easy to maintain, can be installed in wells, wells, reservoirs of various types.

Mid-range pumps

The list of pumping equipment for wells at an average cost is quite extensive, experts advise paying attention to the products of the Jilex company. Units with a capacity of up to 1.1 kW provide a head of up to 115 meters, while the maximum productivity can be 6.9 cubic meters per hour.

The features of the models include the use of a special filter in the design, which allows the equipment to be used even in wells with a significant content of sand in the water. During operation, the device does not create vibration loads that can adversely affect the well casing.

They have high efficiency, they are reliable and durable, operation and maintenance do not require significant financial costs. The cost of various modifications of water cannons of this brand varies from 5 to 15 thousand rubles.

Quality pumps at a higher price

If you need equipment that can last the entire life of the well, you need to give preference to the more expensive models.

As a rule, such installations are characterized by high efficiency, are reliable, and can be operated in various conditions.

Can be purchased for 27-50 thousand rubles. For this money, you will receive an installation that provides a supply of up to 7.5 cubic meters of water per hour, while the maximum head can be 155 meters. They are considered one of the most suitable types of equipment for providing country cottages.

They can be operated in wells with a minimum cross-section (inner diameter from 76 mm). It should be noted that the units of this manufacturer are quite sensitive to water quality. Durability and trouble-free operation ensured by various systems automatic protection(from dry running, overheating, voltage drops and others).

None of the owners of Grundfos SQ pumps regretted purchasing these particular devices.

Submersible pump "Pedrollo 4BLOCK 4/14" with an average cost of 23 thousand rubles, it is possible to supply water with a sand content of no more than 150 grams per cubic meter.

Traditional Italian manufacturers guarantee high quality equipment, pumps are reliable, can be operated for a long period without additional Maintenance... Installed in wells with casing cross-section from 100 mm.

Provide a flow rate of 6 cubic meters per hour with a maximum head up to 88 meters. All the main elements of the device are made of stainless steel, equipped with a three-phase electric motor, the safety of which is ensured by the tightness of the case and the presence of automatic protection systems (degree IP68).

Vodomet chastnik 115 / 75ch belongs to the category of automatic water supply systems, the average cost (depending on the configuration) is 27 thousand rubles. Provides a flow rate of 115 l / min, a maximum pressure characteristic of 75 m, can be operated at depths of up to 30 m.

It is quite convenient to operate and easy to operate. Automated system allows you to set the required operating parameters (flow rate, pressure in the pipeline, etc.). Allows you to simultaneously provide water withdrawal at several points, it is considered one of the most optimal equipment options for ensuring country house or a cottage. Recommended when it is necessary to ensure a significant water consumption for a long time (baths, saunas, laundries).

Multistage pump submersible pump "Wilo Sub TWU 3" differs in traditional German quality, it can operate in the mode up to 20 starts per hour. The main units are made of stainless steel (with the exception of polymer impellers), which guarantees a significant service life of the installation.

It can be installed in wells with a diameter of 75 mm, the maximum immersion depth is 60 meters, with a possible head up to 125 meters. The pump is supplied with different types electric motors (single and three-phase), economical and easy to operate, does not require frequent removal for maintenance. The price varies from 29 to 45 thousand rubles.

used to supply water from various sources. The sealed housing provides reliable protection even from the dirt. The average flow reaches 4.2 cubic meters of water per hour, the maximum head is 92 m, the immersion depth is up to 25 m.

Equipped with a bottom water intake with a built-in filter, which provides protection against various mechanical impurities (clay, sand, other inclusions). The impellers are made of special thermal plastic that is resistant to various aggressive media. Differs in reliability and unpretentiousness, the cost of the unit reaches 22 thousand rubles, which is quite inexpensive for equipment of this class.

The choice of pumping equipment is wide enough, so it is easy to choose the optimal model for various operating conditions.

If you have no experience in this matter, then you should contact a specialist who can assess all the features of your well. In this case, the pump will serve for a long time and trouble-free.

Wells are increasingly replacing wells as 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 buy, study our rating.

Pumps for wells which company to choose

In today's market borehole pumps there are many noteworthy manufacturers.

1. Wilo is a leading German corporation with pumping units sold all over the world. Household electrical appliances of high quality have been produced since the distant 1872.

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

3. GILEX 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 a company from Italy that has been producing high quality electric pumps since 1974. It has proven itself well with advanced technology and qualified personnel.

5. Aquarius is a well-known trade mark from the Ukrainian manufacturer "Promelektro-Kharkiv". Since 1995, the enterprise has been producing competitive products for the transportation of water.

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

7. VORTEX - 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 the PRC.

Rating of the best borehole pumps

• Demand different models based on popularity, rating and positive reviews.
• Type of submersible unit (screw, vortex, centrifugal) and method of its installation (vertical, horizontal).
• Well type (sand, 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 truthfulness under operating conditions.
• Materials used in the manufacture of the body, assemblies and parts.
• Ease of operation and maintenance, as well as a level of automated monitoring and control.
• Manufacturing company and its status in the market.
• Warranty obligations and quality of service of the service department.
• Real service life.
• Full cost (pump + installation + potential repair).

The best electric pumps for wells with a depth of 10 m

Q = 2.40 m3 / h

The DAB IDEA 75M is a vertical, quiet, thermally protected vortex pump. For 1m3 of pumped water, sand should be up to 40 g.

Advantages:

• immersion / supply / 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 rubles;
• unpretentious in work;
• good combination technical parameters and energy consumption.

Flaw:

• Poorly machined inner edges can block the rotation of the brass wheel.

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

Q = 3.00 m3 / h

Elpumps BP 1/4 is a multistage 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;
• D of the outlet: 1 ";
• power cord: 20 m;
• price: 18.4… 19.2 thousand rubles.

Flaw:

• bolts in the filter area loosen over time.

The vast majority of correspondents agreed that 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 apparatus that pumps liquid with an impurity weight of 40 g per cubic meter. In the presence of thermal protection and a cutting nozzle.

Advantages:

• flow / head / immersion: 5.10 m3 / h / 60 m / 10 m;
• P / U: 1400W / 220V;
• Ø of outlet opening: 1¼ ";
• network wire: 20 m;
• price: 18.0 ... 2.0 thousand rubles;
• 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:

• gears rust;
• the screw is unreliable - it works intermittently.

The 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 submersible device protected from overheating with a vertical installation. 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:

• have not yet been found.

Consumers are satisfied with the technology - the pressure and performance are satisfactory, weak points have not been identified.

Q = 4.50 m3 / h

Elitech НГ 900-60 is a Russian-Chinese centrifugal electric pump, a feature of which is a control unit. Equipped with an electronic switch and an overheating protection system. The suction system is 9-stage.

Advantages:

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

Flaw:

• unreliable and inconvenient, a cord is attached to the body leading to the PU. Over time, it may break off.

Reviews of the model are mostly positive: its technical characteristics and performance indicators were at a good level.

Electric pumps for wells with a depth of 20 m

Q = 2.70 m3 / h

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

Advantages:

• immersion / head / performance: 20 m / 32 m / 2.70 m3 / h;
• P / U: 450W / 220V;
• D of the outlet pipe: 1 ";
• network wire: 30 m;
• price: 10.1… 13.5 thousand rubles;
• quiet in operation.

Flaw:

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

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

Q = 5.10 m3 / h

UNIPUMP ECO AUTOMAT is a centrifugal vertical unit with thermal protection. The content of mechanical impurities 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;
• Ø of the branch pipe at the outlet: 1 ";
• network cable: 20 m;
• price: 14.3 ... 19.2 thousand rubles;
• non-return valve and pressure switch are pre-installed in the structure;
• quietly pumps liquid;
• if the assembly is of high quality, it works flawlessly.

Disadvantages:

• sensitive to power surges;
• the automation periodically does not work correctly;
• sometimes the bearings are seized.

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

The best electric pumps for wells with a depth of 25 m

Q = 4.20 m3 / h

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

Advantages:

• head / performance / immersion: 92 m / 4.20 m3 / h / 25 m;
• P / U: 1500W / 220V;
• Ø of the outlet pipe: 1 ";
• electric cable: 30 m;
• price: ≈41.8 thousand rubles;
• engine operation is not audible.

Flaw:

• the cutting head is dull.

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

Electric pumps for wells with a depth of 30 m

Q = 1.92 m3 / h

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

Advantages:

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

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 devoid of some assembly curiosities.

Q = 3.60 m3 / h

Aquarius BTsPE 0.5-32U is a vertical centrifugal 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 of the outlet fitting: 1 ";
• electric cord: long;
• price: 8.2 ... 13.0 thousand rubles;
• remote starting capacitor;
• reliable - even without a voltage regulator that can be delivered.

Flaw:

• performance depends on voltage “behavior”;

Conclusion based on the reviews: Appliances fully meets the expectations of consumers - it works flawlessly.

Q = 6.60 m3 / h

JILEX Vodomet PROF 110/110 is a vertically installed submersible pump, the filter of which retains particles larger than 1.5 mm. There is "no load" protection.

Advantages:

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

Disadvantages:

• a little expensive;
• not always on sale.

The reviews are wonderful: it is 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 is a vertical vortex apparatus with a diameter of 10.2 cm. The amount of contamination 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;
• Ø of outlet fitting: 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;
• the service department 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 silent model with a durable valve-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: 70 m / 35 m / 5.10 m3 / h;
• P / U: 750W / 220V;
• D of the discharge pipe: 1½ ";
• electric cable: 30 m;
• price: 9.5… 10.5 thousand rubles.

Disadvantages:

• Not detected.

A well-made Chinese model has not received a single negative review, including at a specialized forum.

Electric pumps for wells with a depth of 40 m

Q = 3.60 m3 / h

PRORAB 8776 BP / 65 is a vertical household pump designed for the installation of a water supply system in 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 of the discharge pipe: 1¼ ";
• power cord: 65 m;
• price: 16.0… 20.2 thousand rubles;
• stainless steel body.

Flaw:

• high head can damage the mixers.

There are no laudatory odes and serious claims to the Russian product assembled in China in the reviews. 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 smoothly starting motor. A check 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 of the discharge nozzle: 1¼ ";
• electric rope: 20 m;
• price: 32.4 ... 49.4 thousand rubles;
• widely used as an integral link automatic stations water rise.

Flaw:

• 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 her popularity.

Electric pumps for wells with a depth of 45 m

Q = 8.40 m3 / h

ESPA Neptun fl120 60M is a monoblock centrifugal pump with smooth starting motor, suction filter and overheating 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 of the discharge nozzle: 1 ";
• cable: 30 m;
• price: ≈43.6 thousand rubles;
• quiet running, long service life.

Flaw:

• high price.

Reviewers have a high opinion of this high-performance model - no breakdowns occurred at the time of writing.

The best electric pumps for wells with a depth of 50 m

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. A thermal relay is provided to protect the motor from overheating.

Advantages:

• head / immersion / flow rate: 50 m / 50 m / 3.60 m3 / h;
• P / U: 600W / 220V;
• Ø of the 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, parts are loosened, oil flows out.

From the reviews, it 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. Allowed 150 g of sand per 1 m3 of water.

Advantages:

• deepening / productivity / head: 55 m / 22.50 m3 / h / 60 m;
• P / U: 3000W / 380V;
• Ø of the discharge branch pipe: 2 ";
• cord: 1.5 m;
• price: ≈73.1 thousand rubles;
• special hydraulic design;
• units and parts are made of durable stainless materials.

Disadvantages:

• weak pressure, not enough pressure;
• there is not enough flow rate for irrigation of a large area.

Users, in general, speak positively about the technical device, while at the same time refer to the quality of the drilling robots.

Electric pumps for wells 60 m deep

Q = 4.20 m3 / h

ESPA Neptun fl60 45M is a vertical multistage pump with centrifugal design. 0.1 kg of sand does not hinder the operation of mechanisms, which, moreover, have abrasion resistance.

Advantages:

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

Flaw:

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

The ESPA technique is considered by users to be one of the best, and deservedly so. Regarding the above misunderstanding: you need to carry out diagnostics - it is likely that this is a minor automatic nuisance that can be easily eliminated.

The best electric pumps for wells with a depth of 70 m

Q = 2.00 m3 / h

DAB MICRA HS 302 - 6 is a vertically directed multistage pump with a frequency regulator and built-in protection against idling. Regulated weight of sand in 1 cube of water: up to 30 g.

Advantages:

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

Disadvantages:

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

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

Q = 5.52 m3 / h

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

Advantages:

• head / flow / depth: 108 m / 5.52 m3 / h / 70 m;
• P / U: 1100W / 220V;
• D of the discharge pipe: 1¼ ";
• network wire: 65 m;
• price: ≈22.3 thousand rubles;
• easy operation, durable body.

Disadvantages:

• Not detected.

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

Electric pumps for wells with a depth of 80 m

Q = 2.70 m3 / h

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

Advantages:

• deepening / head / productivity: 80 m / 60 m / 2.70 m3 / h;
• P / U: 800W / 220V;
• D pressure connection: 1¼ ";
• network cord: 35 m;
• price: 10.4… 16.4 thousand rubles;
• materials of manufacture: stainless steel, brass, polycarbonate.

Flaw:

• can depressurize with consequences.

The reviews are mostly positive. It costs a lot to recommend 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 outside. Has a starting capacitor, check valve, protective thermal relay.

Advantages:

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

Disadvantages:

• insufficient pressure.

Consumers claim that the pump is solid.

The best electric pumps for wells with a depth of 150 m

Q = 6.50 m3 / h

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

Advantages:

• head / deepening / flow rate: 26 m / 150 m / 6.50 m3 / h;
• P / U: 600W / 220V;
• Ø of the pressure connection: 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 liquid are corrosion-resistant;
• many additional options.

Disadvantages:

• small pressure;
• installation costs not much less than the electric pump itself.

According to reviews: there are many pluses and at least minuses - an elite high-quality pump that pumps premium water.

What borehole pumps to buy

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

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

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

4. For owners of houses with a pool and a fountain, you can purchase the PROF 110/110 water cannon from DZHILEKS 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 well in the sand can install BP 1/4 from Elpumps.

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 contamination during operation

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

The depth of the intake source decreases

This can have negative consequences for submersible electric pumps located at a short 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 the pumping equipment.

Deteriorating water quality

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

Debit falls

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

The water level is dropping

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

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

Requirements for electric pumps for circulation

Contaminated water is not pumped out with every electric pump, for example, the answer to the question - "Is it possible to clean a well with vortex types?" will be negative. Vortex patterns in force design features(small gaps between the vortex impeller and the walls of the working chamber) are absolutely not provided for work with contaminated water. When choosing suitable pumping equipment, the following criteria must be followed:

Well compliance

A pump for pumping a well must be suitable for its parameters, first of all, this is due to its head and immersion depth.

Compliance with water quality

The contaminated bottom of borehole sources can consist of various fractions: sand, clay or pebbles. Type of pumping device must be suitable for the structure of the pollution, in otherwise its operation in an unsuitable environment will be ineffective and lead to failure.

Low cost

It is unreasonable 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 that pump wells on a professional level. For example, it is more profitable to pump wells with expensive high-quality Gundfos submersible electric pumps due to their high reliability after many years of operation than domestic models.

High performance

This parameter affects the time of pumping out contaminated water, which in some cases can take more than a day, and the efficiency of treatment. More powerful models suck in liquid from greater depths, respectively, taking 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 often used in everyday life, can work effectively with contaminated water.

Vibrating

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

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

Simplicity of design... Lets without special efforts and special equipment to repair or replace worn-out parts on their own.

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

Principle of operation... The use of vibration pumps negatively affects the casing, causing their deformation, and can also lead to complete siltation of the well source due to the compaction of the sediment layer during vibration.

Low productivity and uptime... These are the main disadvantages of vibration pumps, which exclude their use for constant water supply.

Screw (auger) submersible electric pumps

Screw electric pumps have the following distinctive features:

High price... The cheapest Unipump ECO VINT1 models cost 4 times more than vibration ones - about $ 80.

Working with contaminated liquids... The devices work well with very viscous clay dirt, sand and small stones erase the screw.

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

Centrifugal pumps

Centrifugal types are the most common; for the intake of pumped water from wells, both surface and submersible types are used, having the following features:

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

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

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

For efficient pumping of wells, centrifugal electric pumps are most often used, designed to work with large size particles. Vibration 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 hole work?

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

The aquifer is represented by sandy deposits. The porosity of the material is large, therefore, the mobility of each grain of sand is also great. The sandy water flow puts additional stress on the pump. The device cannot pump dirty water for a long time, therefore it burns out quickly. It cannot be repaired. What to do in a similar situation? The reasons for the rapid failure of the 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 gravel or pebbles is used. This is a good way to inhibit any washout or sand movement throughout the well. For greater efficiency, a mesh type of filter is mounted at the end of the casing.

Unit description

The sand pump is a single stage and centrifugal equipment. The main task of such a design is to pump abrasive slurries, waters with various impurities. But a liquid for efficient pumping must have some properties.

The pumped solution must have:

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