How to choose a submersible pump with automatics for a well. Submersible pumps for wells with automatic equipment

Using a pump to provide a house, cottage or plot with water is a common solution in conditions where there is no access to centralized communications. In the country, an alternative, and often the main source of water, becomes a well. For the organization of water supply in this case, submersible pumps are used. They are on the market in large assortment, which allows you to do optimal choice consumers with different needs. Experts recommend purchasing a submersible pump for a well with automation, which will facilitate the management of the station, as well as protect communications from accidents.

Main characteristics

A pump must be judged against a variety of criteria, but not all of them can be tested prior to purchase. This concerns structural reliability, ergonomics and durability. And yet there is a set of actual operational parameters, which in the first place should be based on the choice. The main one is power. Both the power output of the unit and the cost of electricity depend on it. For well equipment, this figure varies on average from 200 to 300 watts.

This is where the plant performance comes in. At 250 W, a submersible well pump with automation will be able to pump about 18 l / min. If you plan to serve several consumers, you will have to choose a high-power device with 500 watts. In this case, the return will be about 40 - 50 l / min. Be sure to take into account the depth of immersion. Compared to downhole models, well units are lowered by a maximum of 30 m when it comes to household models. In practice, most often the same summer residents work with a depth of no more than 10 m.

Advantages of automatic models

The presence of automation allows you to assign control over the equipment to the built-in control unit. For example, complete pressure switches, depending on the number of atmospheres, automatically turn on or turn off the unit. Most pumps come to the buyer with pre-set values ​​from 1.4 to 2.8 atm. Within these limits, the equipment by default maintains the pressure level in the pumping line.

Also a whole complex automatic systems focuses on providing a protective function with an emergency shutdown. Can be cited as an example submersible pump"Grundfos" for a well with automatic modification SB 3-35. This model equipped with protection against dry running and a thermal relay in case of overheating of the electric motor, and also supports the possibility of automatic restart.

Even if you have chosen a budget version, it is desirable that it has a pressure gauge, a float switch and a dry-running fixation sensor. This is basic set systems that, if not relieve the user of the hassle of operating the suction station, will make its operation safer.

Model DAB DIVERTRON 1000

The development of Italian designers who created a classic, but at the same time optimized for modern requirements design of a well pump. This solution is beneficial for small wells, since it can be integrated into openings 15 cm wide. At the same time, the volumes of pumping water are regulated on average from 0.5 to 5.5 m 3 /hour. As you can see, the performance is not the highest, which is also due to modest size, but it is precisely due to its compactness that the unit can carry out a stable rise to a height of about 45 m.

But this is not all the advantages that this submersible pump for a well with automatic equipment has. Italy is the birthplace of several major manufacturers pumps, but not all of them take into account the harsh weather when operating the equipment. The developers of DAB in the model under consideration just focused on its application cold winter. Both the body materials and the power filling have special frost-resistant coatings, which protects the unit from freezing.

Model Grundfos SB 3-45

With the help of the SB 3-45 modification, the Danish manufacturer proposes to equip a powerful water supply system from a well, which will be enough to serve an entire cottage with a living family. To start the system, it is enough to open the tap - the further process will be provided by automation.

Thanks to an improved filtration system with millimeter meshes, the device prevents sand particles and other foreign elements from passing into the domestic plumbing. Pump users cite advantages such as reliability, power, energy efficiency and the possibility of full automation. It is also worth noting that the SB 3-45 A submersible pump for the Grundfos automatic well is equipped with a thermal switch. This means that when signs of overheating are detected, the system will automatically turn off the equipment.

But there are downsides to this proposal. If it is planned to organize a water supply channel up to the second floor, then for large volumes, additional effort from the accumulator may be required.

Model "Dzhileks Vodomet-55/35"

Pretty simple but productive solution from domestic manufacturer. It must be emphasized right away that the automation in this case is significantly curtailed - the engineers provided only an idle shutdown system and float regulation. Otherwise, the design adequately shows itself in the maintenance of private houses and cottages. The immersion depth is 30 m, which is suitable for objects with serious water supply tasks.

The advantages of the unit also attract ordinary consumers. In particular, the submersible pump for a well with automatic "Dzhileks" of this modification is characterized by economical energy consumption, low maintenance requirements and low noise level. In addition, this pump is inexpensive - about 7 thousand rubles.

Model "Aquarius-3"

Utility development from yet another Russian company, which focuses on the budget class. Not always submersible well pumps are used to organize water supply in a house or in a country house. Often, such installations are used just for economic needs in the form of watering or filling bath tanks. Just for such tasks, the submersible pump for a well with automatic equipment "Aquarius-3" is intended. Of course, his productivity is small (430 liters per hour), but more is not required for the garden. In addition, the fence is possible even from problematic sources with a low level - up to 40 m.

As practice shows, the unit has a reliable design, does not make noise and is durable. The only drawback is associated with forced breaks in work. Periodically, it must be turned off and cooled, thereby preventing the risk of overheating.

Model "Brook-Technopribor-1"

Another ultra-budget pump from the category of simple submersible units. The model is capable of pumping about 1000 l / h, reaching a depth of 60 m. Again, the advantages include technical durability, ease of maintenance and strength of the hull.

In the process of pumping, the device can take water even with sand. Obviously, such a liquid is not suitable for home use, but it will fully satisfy the needs of the garden. If you need an inexpensive, but stable functioning in different conditions submersible pump for a well with automation, then this model is worth considering.

As for automatic systems, they are also present in this model, albeit in a limited version. The design is complemented by overheating protection with a thermal switch. The main advantage of this solution is the price. On the market "Brook" can be purchased for only 1.5 thousand rubles.

Model AQUA VES 3/5 from VMtec

In some ways, the opposite of the previous model. Suffice it to say that this pump will cost the buyer about 28 thousand rubles. What can you expect for this amount? The user receives a high-quality and productive unit, which includes circulation pump and special equipment for organizing irrigation. Equipment can be configured for service clean water and to provide the same irrigation with liquid with impurities. However, in the second case, by default, basic filtration from particles harmful to the pump itself will be performed.

With regard to performance, the submersible well pump with automation from VMtec is capable of pumping about 5 m 3 / hour to a height of 54 m. As in the case of the Italian model DIVERTRON 1000, operation is also possible in cold weather at low temperatures. Technologically, the model is made at an average level, it supports the full range of common automation systems, but we can add to this the presence of automatic control of the level of well water.

What consumables to supplement the pump?

Even premium pump models are rarely provided with accessories that can fully cover needs for a long time. technical organization water supply. Therefore, you need to take care of consumables at the stage of choosing a unit. It has already been said that pumps can have different systems filtration. But in each case there is the possibility of choosing a means of screening out foreign particles. Filters can be purchased on the market to exclude sand, silt, small stones, etc. from the flow.

A submersible pump with built-in automation and without mechanical fittings is not complete. This category of consumables includes o-rings, cuffs, oil seals, fittings, as well as adapters different forms and sizes.

In some cases it may be necessary auxiliary equipment. As a rule, such needs arise when organizing high-performance water supply lines, when one pumping unit cannot be dispensed with. As mentioned above, even a powerful submersible pump for a well with Grundfos SB 3-45 automation will have to be supplemented with a hydraulic accumulator if it is planned to service a two-story house.

Before installing the pump, it is important to calculate the distance over which water will be pumped. It must be remembered that the vertical distance has a ratio with the horizontal in the ratio of 1:4. Physical installation is usually done fixing fittings: mounting brackets, nuts and bolts. For a well, it is desirable to provide a bearing platform in the form of a small metal frame.

It is important to take into account that external structure should not block the intake channels. The same submersible pump for a well with Grundfos automation has a suction grate at the bottom, that is, you will have to hold the structure with side and top clamps. Before the first start-up of the equipment, it is necessary to fill the cavity with water so that the dry running system does not work in vain.

Conclusion

Pumping equipment allows you to solve the problems of water supply different ways in terms of the technical organization of pumping channels. Even at the stage of deciding on the choice of a well as a source of water, there may be a question of which is better: a pumping station or a submersible pump with automatic equipment?

All differences come down to the position of the aggregates. The station works in direct accessibility on the surface (for example, in the utility block). The owner can monitor the condition of the equipment, make adjustments, etc. The pump, in turn, operates outside the direct access zone, but the ability to dive directly into the well increases productivity.

It is unlikely that a house in which there is no water supply system can be considered comfortable. Moreover, in this case, we can talk not only about centralized network, but also about the local water supply that serves one household.

To create it, you must purchase an automatic pump for the well. Our article will tell you about the varieties of such devices and their correct choice.

Local water systems

Automatic well pumps are used to create local water supply systems, divided into two types:

1. hydropneumatic system - in addition to the pump, it includes a hydraulic accumulator and a relay that regulates the pressure in the pipes. They can be sold individually or as a set. In the second case, the supplied device is called a pumping station;

1. electronic system - equipped with an electronic unit installed in the pipe. The efficiency of such water supply network higher than the previous one, so it is more popular. In addition, in the latest models of such devices, the unit is mounted directly inside the pump housing. This eliminates the need for additional installation work.

Advice!
When choosing one or another type of design, keep in mind that the hydropneumatic system, as a rule, has a lower performance compared to the electronic version.

Types of automatic pumps

In autonomous water supply systems, one of two types of pumps is used:

1. surface devices- are located at a remote distance from the well, the water from which is raised using a connected hose. They provide a high water pressure and, in addition, are easy to install and maintain. Their disadvantage is insufficient power, due to which they can lift water from a depth of no more than 9 meters;
2. submersibles- are placed inside the well in the water column. An automatic submersible well pump is capable of operating at great depths. In addition, it has a simple and reliable design, providing long term services.

• it is better suited to work in winter conditions;
• has more high efficiency;
• ensures more stable operation of the plumbing system;
• creates a low noise level.

Popular brands of automatic well pumps

When choosing an automatic pump for your well, you first need to look at those brands that are most popular with buyers. Let's take a look at them.

Submersible pumps

Among the submersible well pumps used for automated water supply networks, the following brands are the most popular:

• "Kid" - working as part of hydropneumatic system, devices under this name can stably provide water to a small country house or land plot. Due to the fact that their price is quite affordable, they are especially popular with summer residents;

• "Brook" is another brand popular with homeowners. Just as in the previous case, they are used as an element of a hydropneumatic plumbing system. Has the best ratio of the price and quality of let out production. Differs in non-failure operation;

• "Aquarius" - devices manufactured under this brand have a simple and robust design. In addition, they are made from high quality and corrosion resistant materials;

• "Dzhileks" - such a submersible pump for a well with automatic equipment is equipped with a special control unit. Depending on the pressure in the system, it starts or stops the pump. The advantages of this brand include good quality and reliability of its instruments;

• "Grundfos" - produces models that are well adapted to work in both clean and polluted water with an admixture of sand. Distinctive features such pumps is their compactness and wear resistance;

• "Dab" - under this brand, devices are produced specifically designed to work in a well in automatic mode. These devices have built-in flow and pressure sensors. In addition, they are equipped with electromechanical control.

Related articles:

Surface pumps

Surface units are easy to install and maintain. You can connect them manually. Therefore, choosing a pump for your well, you can take a closer look at this option.

In this case, first of all, you should pay attention to the devices offered by well-known companies. Among the popular manufacturers producing surface pumps for wells, there are already mentioned above "Dzhileks" and "Grundfos".

The first of them is more popular than the second, because it has a lower price and is better adapted to Russian conditions operation.

In addition to these two brands, the following companies are successful with buyers:

• Al-co is a well-known German manufacturer of pumping stations. They have a pressure of up to 60 meters and are capable of supplying up to 6000 liters of water per hour;

In the photo - AL-KO pumping station

• Wilo is the oldest pump manufacturer in Europe. The pumps produced by him are compact in size and silent in operation. Thanks to installed automation, they are able to provide uninterrupted water supply to both the cottage and the country house;

• Awelco is an Italian company that has been producing devices for water supply for over 20 years. The devices of this brand offered to the buyer have high power and excellent build quality. In addition to that, their cost is quite affordable for the average Russian buyer.

Rules for choosing a specific pump model for a well

Having decided on the type and brand of the pump, we proceed to the definition suitable model. The instructions for choosing here will be as follows.

First, pay attention to the performance of the pump for the well. For creating autonomous water supply this value should be from 3000 liters per hour or more. This is necessary for the uninterrupted operation of the system in cases where several consumption points are turned on at the same time. These include washing dishwashers, faucets and toilets.

After that, if we are dealing with a surface pump, we look at the feed height, if we buy a submersible device, then at the maximum pressure. At the same time, we take into account that 1 meter of the vertical is equal to 4 meters on the horizontal plane. We calculate the distance from the point of water intake to the most remote point to which the liquid will be supplied.

Advice!
In order for the purchased device to last as long as possible, choose a device with a power reserve.
That is, if you need a pump with a maximum head of 20 meters, take the one with this parameter equal to 40 meters.

When choosing a surface apparatus, be sure to consider such a characteristic as the suction depth. Usually it is 8-9 meters. To take water from a greater depth, a deep pump is required.

One more problem needs to be taken care of. In the event that in your electrical network the current is unstable, you should purchase a voltage stabilizer. It will help protect the equipment from sudden surges in current and make the water supply uniform.

Conclusion

Automatic well pumps are used as part of a hydropneumatic or electronic system water supply for a well. At the same time, their automation is an external relay connected to the pump, or an electronic unit mounted inside the device case.

Pumps for wells with automation can be surface or submersible type. In the first case, they are equipped with a hydraulic accumulator and a pressure switch. They can be purchased individually or as a single unit, which is called a pumping station. As for submersible devices, they have built-in sensors and electromechanical control.

When choosing a suitable device, you should first of all pay attention to those brands that are popular with buyers. Their full list has been given above.

You need to choose a specific model based on its main technical parameters. These include capacity, feed height and maximum head.

The technology for supplying water to the house requires the coordination of all devices that are involved in the process. There is no need to manually adjust the pressure, turn the pump on and off and do a lot of manipulations that automation is designed to perform. The automation process is simple and does not require special skills, so everything can be done by hand. The main thing is to know what is behind what and what it connects to, and this is what we will do right now.

Selection of automation systems

There is no particular scope in the choice of automation systems yet, but what the market offers already greatly simplifies. One scheme is a bit cheaper, the other is a bit more expensive, but both can do pretty well with automating the task at hand. Here they are:

Submersible pumps for wells with automation are the main element of any system, so it’s worth starting the review of the automation scheme with it.

Types of submersible pumps with automation

We will never be able to make a choice and the entire system as a whole until we decide on the main issues relating to the entire system as a whole:

One of the types of pumps, namely vibrating submersible low power, not considered as a permanent connection to the water supply. It can be used as a temporary device, as well as for water intake for watering plants and other technical purposes. This is due to the design features of the device and low performance. The remaining types of pumps, discussed below, are suitable for year-round use for permanent water supply at home.

In addition to submersible pumps, there are also surface pumps, but today is not their day, we will consider only submersible ones. According to the principle of water injection, they can be:

• vibration;
• vortex;
• screw;
• centrifugal.

All pump models that we have listed are more or less suitable for use in a well water supply system. Each type has its pros and cons, and each of them can work differently in a well and in a well. special attention deserve submersible pumps with automation that controls voltage drops.

Well pumps have special system cooling with the water they pump, so there is a danger of overheating and damaging the motor if it turns on without water. To avoid this, on automatic pumps install a dry running sensor. As soon as the water supply stops, the sensor sends a signal to the relay, which stops the pump. But despite the sensor, you need to try to install the pump in such a way that draining the well has minimal chances. Such pumps are capable of lifting water from a depth of about 70 meters, depending on the model.

That part of the automation, which has nothing to do with the technical part of the pump, is installed in the house. By this time, all calculations must be carried out, the system has been installed and pipes have been laid. All piping around the house is carried out only after the automation system is installed.

Installation of the automation and plumbing system with its control is mounted according to the following algorithm:

After that electrical cable and the water pipe are connected to a pre-prepared tee for the pipe, and the cable from the electric motor is laid to the connection point.

We have shown several typical automation connection schemes in the photo, but each project is developed individually, so the schemes are for informational purposes only.

An important component comfortable life in a private house is water supply. If there is no centralized water supply near the site, the organization of autonomous water supply from a well or well will be relevant.

A constant supply of water to the right amount will provide two components - a pumping station and a well (well).

1 Device and principle of operation

The pumping station for a well (well) is an automatic water supply system assembled together. More commonly used in country houses where there is own water supply and source (well or well).

The pumping station in the well performs the function of providing the desired water pressure in the water supply. The well-coordinated work of automation, the pump, the correctly selected volume of the hydraulic accumulator provide constant pressure and uninterrupted water supply.

Components pumping station:

1. Hydraulic accumulator - prevents water hammer that occurs during start-up. It also serves as a reservoir of water, which is supplied to the water supply. The air in the tank pressurizes the water supply even when the electricity goes out.
2. Electric pump - pumps water into the pipeline.
3. Manometer - pressure control in the system.
4. Pressure switch. Its function is to control well pumps.

The unit is equipped with protective equipment. This is check valve(protection against backflow of water) and a pump filter (prevents dirt from entering the water supply). The filter must be cleaned periodically.

Installation work:

1. When turned on, the pump pumps water into the system and the accumulator.
2. When a certain water pressure is reached in the system, it automatically turns off the pump. The plumbing remains full.
3. When the water tap is opened, water flows from the system and the accumulator.
4. The water pressure in the accumulator drops to a certain value, the pressure switch turns on the pump.
5. When the tap is open, the pump will run continuously. When closed, until the pressure reaches the maximum value.

1.1 How to choose a pumping station for a well?

When choosing, the following characteristics of pumping stations are taken into account:

1. Power. For household stations most often in the range of 600-1500 watts. When choosing it, the number of water intake points, the distance between the pump and the well, the flow rate of the source (the volume of water that the well produces per unit of time) are taken into account.
2. The productivity should be slightly less than the productivity of the well, which is indicated in the passport. A stable water supply of a private house will fully provide 3000-6000 liters per hour, for a summer residence - 0.6-1 m3 per hour.
3. Storage tank volume. You need to consider how many liters of water should be in reserve for the house in case of a power outage. Storage tanks There are steel, cast iron and plastic. They differ in price and quality. The most expensive and reliable are cast iron. Most cheap plastic have a short service life. The best option steel containers stand out in terms of price and quality.
4. The height of the water lift (pressure) is the distance that the pump can lift water.
5. Suction depth - the distance from the surface of the water to the axis of the pump.
6. Protection against dry running and overheating. Dry running control turns off the device in the absence of water, and overheating protection is activated when the pump is running at high speeds. These options make the installation more expensive, but also protect against breakdowns and extend the life of the unit.
7. Automatic, manual or remote control. The automatic station turns on the unit when storage tank empties and turns off when full.

1.2 Pump control

For protection and control, submersible pump control stations TK are installed. The main purpose of TC 112 is the control of submersible pumps. TK 112 stations protect the electric motor in the following situations:

• network voltage fluctuations, phase failure;
• current overload;
• short circuits;
• increasing the number of switching on and off for a certain period of time;
• electric motor current ripple;
• broken motor or cable insulation.

The TK 112 borehole pump control station consists of three devices - a control unit, press control and automation. The TC station is placed in a metal box or cabinet with rubber seals.

1.3 Popular models and manufacturers

Pumping stations for wells do not have a clear classification. Conventionally, the species differ only in some features. Let's consider them in more detail.

According to the volume of the accumulator

Most often they are not large, about 10 liters. But there are models with a tank capacity of 50, 100 and 500 liters.

By created and maintained pressure

For home use of a borehole pumping station, a pump is enough that stops working at a pressure in the pipeline of 2.8-3 Bar. For irrigation, a more powerful submersible pump or pumping station is used.

By pump type

There are ejector and non-ejector. Ejectorless models have smaller dimensions, lower power consumption, low noise level and lower power. more common, divided into:

• Embedded. The depth of the well should not exceed 8 meters. They have high performance, reliability, affordable price but too noisy. They are installed outside the house, in a caisson or in a separate room. Horizontal water supply 35-40 meters.
• Remote. Provide lifting of water from depth of 25 meters. They are practically silent, create less pressure and are more economical in terms of power consumption. For pure water. Drilling wells for water supply is possible to a depth of 35-40 meters.

By appointment

There are three classifications:

• The first lift is to raise water from the well to the surface.
• Second lift - lift water, create and maintain the right pressure in plumbing above the ground.
• The third lift is used to supply water from a depth of more than 7 meters.

By pump location

• surface station. Raises water from a depth of up to 8 meters. The pump is installed above the water level. A hose connected to the suction pipe draws liquid. Compact, light weight, easy to install.
• Submersible pumping station for a well. More powerful, the pump is immersed in water.

By brand

There are many manufacturers, as this equipment is in demand. The following manufacturers have proven themselves well:

• Pump station Grundfos for a well - submersible devices have several models. The most popular and expensive.
• Pumping station Gardena - a little cheaper.
• AL-KO produces a budget option. You can buy a powerful pump relatively inexpensively.
• Aqario pumping station is quite popular, there are many models.

1.4 Pumping station or submersible pump, what to choose?

2 Features of connecting a pumping station

First stage- Choice of installation site. It can be a room or a caisson.

As utility room an outbuilding, barn or basement can be used. In such a room, waterproofing and heating are provided to avoid the threat of freezing. This will require additional costs.

A caisson is a well above the main source. It is installed below the freezing point of the ground, so there is no need to insulate the station. In places like this, it's very high humidity, therefore, it is necessary to reliably waterproof the equipment. Repair of the station in the caisson is difficult.

Second phase- plumbing. Pipes are laid below the freezing level of the soil to avoid freezing and bursting.

Third stage- installation of a pumping station. The case has two exits - for connection to a well and to a water supply system. To connect the station to the well, select polyethylene pipe of the desired diameter, at one end of which a filter and a check valve are attached, and the other end is connected to the pump.

When connecting to the water supply, a coupling and a tap are used. The crane is attached to the thread of the device, a coupling is screwed onto it. The water pipe must be soldered to the coupling.

Fourth stage- the system is tested, after which it can be operated.

2.1 How to make water supply from a well based on a pumping station (video)

2.2 Operating rules

The air pressure in the accumulator is checked once a month or after a long break in operation.

It is necessary to clean the filter periodically, otherwise it may become clogged. Because of this, productivity is reduced, or the pump will not be able to pump water. As a result of running dry, it will quickly fail. How often to clean the filter depends on the purity of the water in the well or well.

Pumping stations for wells should be located in warm and dry places.

The bottom of the trench for the pipeline must be placed below the freezing point. The pipeline can be insulated or additionally heated with a special electric cable.

If submersible pumping stations are not used in winter, then all the water is drained before the onset of frost.

Automation of the water supply system is the first thing that comes to mind for almost any person when he thinks about arranging this system at home. First of all, this applies to private houses that are not connected to the central water supply.

In such cases, it is necessary to dig a well or well and immerse the pump in it. Well, to automate all processes, it is necessary to use automation.

1.1 The simplest automation

Even the most ordinary well pumps are supplied with the simplest system automatic start and shutdown. It occurs due to a change in the filling level of the wells.

Now we mean well water level regulators and dry run blockers.

The most popular and sought after this moment is a float switch. He is also the simplest. The float switch works according to a very simple technology. The well pump is equipped with a special sensor. A float is attached to it.

The pump reacts to the movement of the float, or rather, to the level of its position. If the float is above the device, then the well has a sufficient liquid level, which is optimal for normal operation pump.

If the float falls below the level of the pump, the equipment will automatically turn off. It should be understood that well pumps are able to work as long as their working, intake part is immersed in water. In some models, this part is at the bottom of the pump, while in others, water is taken from the top.

Water level sensors work in a similar way. Only they are already mounted on the walls of the wells, from where the observation takes place.

Another interesting device is the dry run blocker itself. Well and borehole pumps now they are equipped with them at the factory, but this does not apply to all models.

The blocker consists of several contacts with different poles. When the pump starts, they are charged. Under normal conditions, it working chamber completely filled with water, and therefore the circuit in the contacts closes.

If the device is idling, then the circuit cannot close, which leads to emergency shutdown engine.

Main advantages:

• Simplicity of design;
• Reliability;
• Relative cheapness;
• Mobility;
• Efficiency.

Main cons:

• Small feature set;
• A rather laborious way to set up and maintain automation (the pump will have to be removed from the source).

1.2 Automatic relays

Automatic on and off relays are installed in almost every AL-KO pumping station. But pumps for wells are equipped with them no less often. Without this relay, the normal functioning of the water supply system is almost impossible, and here's why.

To work properly, there must be sufficient pressure in the water supply system. Pressure should build up the moment the valve opens. Moreover, if you have not bought a special storage tank, then the pump must pump water from the well every time you open the tap.

To simplify the operation of the entire system and optimize its operation, hydraulic accumulators are installed. These are special tanks with a membrane that contains air. There is always air in the membrane, and depending on the fullness of the tank, it forms the optimal pressure.

If there is too little water in the tank, the pressure drops. If the accumulator is completely filled, then on the contrary, the pressure will increase.

It is to changes in the level of pressure in the system that this relay reacts. It is also connected to the pump.

1.3 Electronic advanced automation

It should be understood that almost all well pumps, as we mentioned above, are ordinary tools for pumping fluid. To turn them on or off, you need to use additional automation. As well as to control their work.

That's what electronics do. automatic control. They are mounted on systems that serve a well, well or any other source.

The peculiarity of such automation is its extreme efficiency and functionality. Firstly, it not only duplicates the functions of the pressure switch, but also improves its interaction.

For example, a pressure switch can only respond to extreme changes in the system. Therefore, to turn on or turn off the pumping of water from the well, it is necessary to overcome one of the established positions.

Electronic automation reacts much better. It analyzes the pressure level in real time and is able to start the pump at any time.

For example, as soon as someone unscrews the faucet in the bathroom, the automation will immediately record a slight drop in pressure and start the pump. If the tap is closed, the automation will continue to operate the pump until the pressure in the system equalizes.

Thus, you will not even need a hydraulic accumulator, because the electronic unit takes care of all the work.

Moreover, with its help, you can forget about the problems associated with low pressure in the pipes, in the case of using several plumbing fixtures.

This often happens when, for example, someone is about to take a bath at the same moment that his other roommate starts washing machine or watering flowers. The pressure in the system drops, and the accumulator is not able to fully satisfy it.

As a result, neither you will wash normally, nor your neighbor will water the flowers. Electronic blocks solve this problem. They are able to supply a certain level of voltage to the pump at the well. If the voltage rises, then the speed of its operation will increase significantly, which means that the pipeline will receive a sufficient amount of liquid.

There is one more point here. Since electronic automation regulates the voltage level, this can also lead to cost savings. Since the installation will supply a weak voltage at the moment when you take little water. For example, when you are just going to wash your face or get a glass of water.

In this case, the pump will consume less electricity, which will immediately positively affect your costs.

Plus, the electronic components are fully customizable. They can change work algorithms, regulate work, etc.

Main advantages:

• Functionality;
• Ability to customize the system;
• Extreme efficiency;
• Possibility of saving money
• Availability quality models emergency shutdown systems;
• Opportunity to get rid of the problem weak pressure in the system during an increase in demand.

Main cons:

• Needs a constant supply of electricity
• Very complex design;
• Very high price.

2 Installation of automation for well pumps

You can mount automation for pumps yourself, since the process is quite simple. However, it all depends on specific models both automatic control systems and pumping units themselves.

For example, dry-running blockers are usually already built into the pump itself. But connecting them separately is not so easy, especially if the developer did not foresee this in advance.

Float switches for water level are connected according to the standard procedure. You just need to connect all the contacts and insulate them with a special sealant. Often it is sold complete with a relay.

After that, you need to very carefully lower the pump into the well, without damaging the float itself. It is important to mount the device in the center of the well and take care of its cleanliness. So that the float cannot accidentally catch on something, as this will immediately affect its work.

In some cases, it is fixed to a level stabilizer, for example, to a fitting. But this method is rarely used.

The pressure switch is mounted directly on the pump. It is connected to it using special contacts. Also, the relay can be placed on the accumulator, although everything here is determined by the specific system diagram.

After installation, the relays are adjusted and thoroughly tested. It is important to set the correct threshold for both upper and lower pressure.

It is better not to install electronic automation yourself. She's too expensive for that. Yes, and setting up its work is a rather troublesome business. Therefore, it is better to entrust it to a professional. He will do his job better and faster. The cost of installing the control unit will be insignificant, especially against the background of its cost.