Installation of a booster pump on the water supply. Recommendations for the selection and installation of pumps to increase water pressure

It often happens that when we get up in the morning and go to the washbasin, instead of a good powerful stream of water from the tap, we find only a thin, barely oozing stream. To fill a kettle or coffee pot, you have to spend a lot of time, and performing the usual hygiene procedures turns into torture. Not to mention that many household appliances, such as washing machine, in such conditions simply will not work. The problem is serious, but it can be solved by installing a pump that increases pressure. However, first you need to understand the reasons for its occurrence.

Standards for water supply parameters

The requirements for the parameters of the water supply network in an apartment building are set out in SNiP 2.04.02-84. According to this document, the value of water pressure at the entrance to the apartment must be at least 0.3 atmospheres and not more than 6.0 atmospheres. Conventionally, 1 atmosphere can be considered equal to the pressure created by a water column 10 meters high.

When entering the building, the pressure must be at least 1.0 atm and not more than 6.0 atm. For buildings with a height of more than one floor, the pressure should increase by 0.4 atm for each floor.

It is easy to calculate that with more than twelve floors, these requirements cannot be met. To ensure normal pressure in the upper floors, for example, on the sixteenth, at the entrance to the house it should be equal to:

1.0 atm + 0.4 atm*16 fl. = 7.4 atm

This value is higher than the maximum allowed, established by SNiP. To comply with all regulations, high-rise buildings pressure pumps are used. They are installed in the technical rooms of houses immediately after the water supply entry point. Such pumps pump up the water that has entered the building and deliver it to the upper floors, providing the required water pressure.

Often booster pumps for water supply are already used in buildings with more than five floors. In such cases, it is more often necessary to use them for injection cold water, since the pressure in the pipeline with hot water supported by pumps installed in boiler rooms.

Often, even in buildings with a small number of storeys or in multi-storey buildings with booster pumps, the water pressure in the apartment is insufficient. The reasons for this can be very different.

Owners of private houses also often face the problem of insufficient pressure in the autonomous water supply system. In this case, it is also necessary to find out the cause and install the appropriate equipment.

Reasons for low pressure

There can be many reasons for poor pressure:

• clogging of filters for coarse mechanical water purification installed at the inlet to the dwelling;
• underestimation of the estimated diameter of the pipes or its reduction due to the build-up of deposits on the inner walls;
• the presence of defects or malfunctions of valves at the entrance to the house or apartment;
• the presence of malfunctions of the main water supply and loss of pressure due to leaks;
• non-compliance of water supply with standards due to the fault of the water supplier organization, which usually serves the pipelines.

In most cases, you should first eliminate the root cause, and then think about purchasing a pump to increase pressure.

Clogged filters are detected when disassembling and inspecting the filter element. As a rule, this is a brass mesh rolled up in the shape of a cylinder. It may be clogged with large pieces of rust, scale that got into the pipeline during repairs. The grid must be washed and reinstalled.

In high-rise buildings

Understating the diameter of the main pipeline is possible when several more large consumers are connected to the existing water supply network, which were not taken into account in the design. This can happen, for example, if several apartments on the lower floors are converted into non-residential premises used as hairdressers, laundries, SPA-salons. Water consumption in such premises, especially during the daytime, can increase many times over.

Deposits can accumulate on pipe walls due to poor domestic water treatment. Too hard, that is, containing a lot of calcium, water releases this element when heated, and it, especially in a hot pipeline, is deposited on the pipe walls. In both cases, if the diameter of the pipes is insufficient, they must be replaced.

If there are pipeline malfunctions, they must be eliminated, and then re-check the parameters of the water supply system.

The dishonesty of the water supplier can be detected if all previous causes are eliminated, and the pressure in the water supply has not increased. To do this, you need to monitor the pressure during the day in all rooms. It often happens that suppliers turn off some of the electric pumps that are supposed to increase pressure at night or in the middle of the working day. At this time, water consumption in urban residential areas is reduced, and such a shutdown saves energy for the organization, significantly reducing its operating costs.

In a private house

In a private house with an autonomous water supply system, everything is a little different. As a rule, water is supplied either by a deep well pump or a pumping station with a centrifugal vane pump from a well. In the event of a pressure drop, it is necessary to check the productivity of the well, the serviceability of the pump, and at the pumping station it is also necessary to check the condition of the accumulator, which is responsible for maintaining the working pressure.

Often a deep pump in an autonomous water supply system is designed for high performance. Its task is to raise as much water as possible from the lower horizon. The depth of water can be 120-140 m, and such a pump can no longer cope with the rise of water to the upper floors of the cottage. In this case, it is also necessary to connect a pump to the system to increase the pressure.

Which pump to install

Can be used to boost water pressure various options equipment. If you have to install a pump to increase the water pressure in the apartment, then the choice should be based not only on performance and other functional characteristics. Equally important is the level of noise emitted by the unit during operation. In a private house, this indicator can not always be guided by, since it is possible to install equipment to increase pressure in various utility rooms.

The performance of the pump must take into account the number of people living in the house. The calculation can be based on housing and communal services standards, which assume the use of 200 liters of cold water and 100 liters of hot water per person per day. Of course, such a flow rate is unlikely to be in demand, but a pump with better characteristics than required during operation will work much longer, and the price increase will be insignificant.

When choosing pumps to increase water pressure in a private house with several floors, it is necessary to take into account the possibility of creating the pressure necessary to raise water to the upper floors.

Control method

According to the method of control, pumps for increasing pressure can be manual and automatic.

Hand pumps turn on for the time required to supply water, and then turn off. Such options are used to fill storage tanks. Similar water supply schemes are also used in private homes. The inconvenience lies in the fact that the operation of the pump must be monitored and turned off in time to prevent unreasonable waste of water or running dry.

Booster pumps equipped with special sensors and controllers are able to turn on and off depending on the conditions created by the operating modes. Automation, based on the readings of pressure sensors, will determine when a vacuum appears in the water supply and turn on the pump. If all shut-off devices are closed and the pressure reaches the control value, the pump will turn off. Automation will save the pump from dry running if the water supply to it suddenly stops.

Differences in design

According to the principle of operation, the units for increasing the pressure also differ. They can be circulating, which are included directly in the pipeline, or they can be suction - raising water and directing it to the main.

Circulation pumps are used primarily to increase the pressure in the heating system, but with some tolerances they can also be used to increase the pressure in the water supply.

Installation of such pumps is carried out in breaks in pipelines, and they, using a rotary impeller, disperse running water. Such pumps are very quiet, but their performance is low.

Centrifugal pumps can be used to lift more water to greater heights, as well as to increase pressure. The working body in them is an impeller, which is installed in a housing that looks like a snail. Experts among themselves call it that. Water entering through the central hole of the volute is accelerated by a rotating impeller and is ejected under the action of centrifugal force through the side hole, entering the pipeline.

Suction pump operation diagram

The operation of the suction pump is based on the creation of a vacuum in the intake piping. These pumps can lift water from wells and shallow wells. Assembled together with a hydraulic accumulator, such a pump can turn into a full-fledged pumping station that is capable of lifting water several tens of meters.

A vacuum is created when the pump impeller rotates. Depending on its design and engine power, the suction depth may vary, but rarely exceeds 8 meters.

The horizontal distance from the pump to the well also affects the suction depth.

To correctly take into account this characteristic when choosing equipment, you must use the formula:

where H is the maximum possible suction depth,

L is the distance from the pump to the water intake,

h is the height difference between the pump installation site and the water level.

The value of h can increase or decrease depending on the weather conditions or the time of year. When calculating, you need to take into account the lowest position of the water in the well and take the maximum value of h in the formula.

Features of pumping stations

For the organization of autonomous water supply of a private house, it is advisable to use pumping stations. By design and principle of operation, they can be submersible and suction. The first are installed in the well and are designed to supply water to houses with permanent residence of people. The second can be dismantled if they are not used for a reason. seasonal residence in houses. Depending on the chosen scheme, pumping stations may differ in design and equipment.

For schemes using a storage water tank, the simplest submersible pump, which can be turned on and off manually, especially with a large tank volume. It is possible to improve the design of the pumping station by installing float water level sensors in the tank. The advantages of such a scheme are that it makes it possible to use the water supply even when the electric pump is not powered for any reason. If the storage capacity is large enough, then significant outages can be experienced.

Note! Pumping stations with hydraulic accumulators are most often used. These are metal two-volume tanks in which the cavities are separated by an elastic membrane.

A gas is pumped into one cavity, which creates pressure in the pipeline when it is compressed. Water from a source is pumped into another cavity by a pump. The design of the accumulator has a pressure sensor that turns off the pump when the maximum design value is reached, and turns it on when the pressure drops, when collapsible fittings open in the pipeline. This ensures the automation of the water supply process.

The capacity of the accumulator is selected based on the volume of water consumed. It depends on the size of the tank how even the pressure will be during the use of the water supply, how often the pump will turn on, how much the pressure reserve in the accumulator will be enough if the pump power is suddenly turned off.

Hydraulic accumulators can be used to compose pumping stations with both submersible and suction pumps. When using the latter, it is desirable to complete the station with a check valve, which is installed at the end of the suction hose.

Power selection

The power of the pressure boosting pump must be selected based on the conditions in which it will have to work, and the requirements for parameters and characteristics. The pump must provide comfortable conditions for the implementation of hygiene procedures, as well as for the operation of household appliances that require water supply with certain parameters.

For normal operation shower, usually a pressure of 1 atm is sufficient, which must be provided on the top floor of the building. For the operation of a washing machine or dishwasher, the pressure is already higher. To determine which unit to increase the pressure to put at the inlet of the water supply, it is necessary to carefully study the technical documentation of all available devices.

Note! Having chosen a pump for pressure and performance, it is necessary to make sure that the existing electrical network is suitable for operation.

Pump installation

The installation must be carried out in a place where regular maintenance will be possible. It should be noted that many booster pumps make noise during operation. If there are utility rooms that are well isolated from residential areas, there will be no problems, and if the boost pump is installed in small apartment, you need to carefully consider the decision of where to mount this unit.

In some cases, the installation option inside a closed kitchen table slightly reduces the noise. An even better result can be achieved if, during installation, a foam rubber gasket is installed between the pump and the base.

When connecting to the pipeline, it is necessary to provide for the possibility of quick dismantling during repair or replacement in the event of a breakdown. To do this, you must use detachable fittings.

Notable Models

The most common manufacturers of pumps for increasing pressure and pressure are traditionally Grundfos, Jeelex, Wilo.

One of the best pumps can safely be called Grundfos UPA 15-90 (N). This device, consuming only 120 W of electricity, is capable of raising water by 8 meters at a minimum pressure of 0.2 atm, while providing a flow rate of up to 1.5 m³ / h. The pump is very quiet, the noise level is only 35 dB. Service life up to 10 years.

For more demanding users, we can recommend the Wilo PB-201EA model. This pump is capable of providing a capacity of 3.3 m³ / h, raising water to a height of 15 meters. Noise level during operation 41 dB. Service life up to 10 years.

One of the most powerful Jeelex Jambo 70/50 H-50 H units is a suction pumping station for lifting water. Provides a flow rate of 4.2 m³/h at a lifting height of up to 50 meters and a suction depth of up to 9 meters. The power consumption of the electric pump is 1.1 kW. The device is equipped with a 50 liter hydraulic accumulator.

Reading 5 min.

The problem of low pressure in the water supply is faced by both residents of apartment buildings and owners of private houses. The most common causes are line clogging, which is eliminated by cleaning and prevented by timely maintenance of the water supply system, and insufficient water pressure.

Adjusting and increasing the water pressure level is easy thanks to the installation of a booster pump.

Device and principle of operation

The booster pump for water supply is a one-piece, immediately assembled structure. Its main elements are the pump itself and the electric motor. Manufacturers of equipment in this category use high-quality, reliable and inexpensive materials. These include cast iron, steel, ceramics and brass - their service life is calculated in decades.

Thanks to this and modern design solutions, pumping equipment for increasing water pressure is affordable and easy to use and repair.

The pump housing is located directly in the aquatic environment. That is, this segment is represented mainly by models with a wet rotor. This configuration provides automatic cooling that does not require user intervention and equipment shutdown. Modern models convenient for installation in an apartment or house, as they create a minimum amount of noise.

Household booster pumps used to modernize the plumbing system are compact and equipped with a simple control panel.

The performance indicator of equipment for increasing water pressure is determined by the presence of a membrane tank in the configuration. Classic inline models, cut directly into a common highway, operate at full power without interruption. However, the water discharge may be lower than expected due to the inadequate quality of the water supply at the main intake. This provokes premature wear and equipment failure.

Models equipped with a membrane tank or a hydraulic accumulator are more productive for water supply in conditions of constant lack of the necessary pressure. The membrane tank, depending on the volume, accumulates a supply of water, which is used in the first place when the taps are turned on or household appliances (dishwashers, boilers, etc.) are turned on. Thus, in your local highway there is always the required starting amount of water, and as it is consumed, the pump will independently fill the tank.

According to the type of control, pumps for increasing water pressure are divided into 2 categories:

• manual;
• automatic.

Equipment of the second type is more expensive, but its advantages include ease of settings, equipping with a large number of sensors and the absence of the need for constant adjustment of operating parameters.

Advantages

The benefits of using it include:

• compact size and relatively small size;
• ease of installation, which can be done with your own hands;
• ease of use;
• increasing water pressure by 1.5-2 atmospheres and maintaining a given level;
• the possibility of pumping liquids in a wide temperature range (-15 ... +100 ° C), which allows the use of installations of this type not only in everyday life, but also for the implementation of industrial tasks;
• economical power consumption;
• low noise level.

Model selection options

The choice of booster pumps for water cannot be based only on the cost of the equipment. As practice shows, it is better to purchase a more powerful and productive pump than to complete the line and pressure injection in the future.

We recommend that you first measure all the actual indicators (pressure and flow rate) and calculate the necessary ones. 2 atmospheres is a sufficient indicator for the comfortable use of water supply in an apartment with one bathroom.

If there are several bathrooms in the house, a large list of household appliances using water, including showers and jacuzzis, is installed, the nominal pressure should be at least 3.5 atmospheres.

When choosing a model, pay attention to the following characteristics:

• power;
• performance;
• maximum pressure capacity;
• type of pumped water - hot or cold;
• noise level;
• size.

Features of installation and testing

Installing a booster pump in a house begins with choosing its location. This is important, since the unit is only turned on if water moves through its sensor. It is best to embed it at the entrance of the highway to the apartment directly in front of the water intake point. In most cases, the pump is installed in basements and fully provide the 1st and 2nd floors.

To raise water to a great height, as a rule, a pumping unit is also used.

Installation is quite simple:

• make sure that there is an outlet in the installation site;
• make markings at the points of entry of equipment;
• shut off the water supply and drain its remnants from the pipeline;
• cut the pipe and equip it with an external thread;
• screw on adapters;
• screw fittings;
• connect the unit to the shield using a three-core cable - of course, you need to install an individual machine;
• check the sealing of the joints (you can use tow, FUM tape or other sealants suitable for water insulation).

Now you can test. The first start of the pump is carried out only after the resumption of water circulation.

If you involve specialists for installation, be sure to be present at the test start-up and draw up an act of checking the booster pumps.

Installation of a GPD 15-9A booster pump in an apartment (video)

Reading 6 min.

An indicator of the quality of the water supply system, both centralized and autonomous, is the pressure indicator. To measure it, specialized pressure is used (mainly to adjust the pressure when connecting household appliances - a washing machine or dishwasher, boiler, gas hot water supply or as part of a heating system).

Sometimes the pressure is so weak that even without the use of instruments everything is clear. To correct the situation will help increase the pressure in the system when connected.

Features of use

Pumps for increasing water pressure in an apartment or a private house are a special category of pumping equipment. Cold water and hot water systems consist of a network of pipelines, the free movement of water through which is determined by the level of pressure in the system.

According to the standards adopted in Europe, this indicator should be from 2.5 to 4 atmospheres, depending on the length of the system and the average daily load on it. The intensity of the pressure also affects the number and type of equipment used. For example, a pressure of 2.5 atmospheres is sufficient to connect. And to connect a shower cabin, jacuzzi or heating systems - 3.5-4 atmospheres.

The water pressure in the apartment, as a rule, is 3.5-4 atmospheres. But this does not mean that more comfortable living conditions will have to be abandoned. An effective and inexpensive solution is pressure boosting pumps for water in apartments. With the development of multi-storey construction, cases have become more frequent when water does not flow to the consumer due to the length of the riser being too long and the pumping station used in the pipeline configuration is not able to raise water to required level. In this case, an alternative for the pump to the apartment will be.

The same situation is in suburban and cottage buildings. In them, the water supply system is often autonomous, and one, even characterized by increased power, the pump does not always provide the proper flow rate. It will not pump water with due efficiency even if mistakes were made during the design or installation of the system.

A water pump that increases pressure is also used in industry. These are large-sized models of a backup type that allow you not to stop production processes in the event of an emergency shutdown of the system or a decrease in the water level in the water supply.

Device, principle of operation

As a rule, a pressure-boosting water pump, including a household one for an apartment, turns on automatically when a critically low pressure level is fixed. They differ in type of construction and purpose.

Types and differences

According to key operational and production parameters, the water pressure booster pump is divided into 2 main categories:

• circulation pumps to increase the water pressure in the apartment;
• self-priming pumping stations.

Due to the universal simple design, the circulation pump for increasing the water pressure is considered the most popular, the pump for increasing the water pressure of this type is easy to install and provides optimal indicators of the intensity of movement within the system. It is compact and intended mainly for adjusting the performance of heating systems and.

The unit consists of a compact motor that drives an equipped rotor. By forcing the water circulation rate, the pressure rises in the entire system. There are models on the market for both cold water and hot water. Pumps of the first type are cheap due to the use of durable but inexpensive plastic in the production process. They can work in a temperature environment not exceeding +40 ° C.

The second type of pumping equipment - stations - is more complex and productive. The key difference from the circulation equipment, which crashes into any fragment of the network and does not affect its autonomy, the pumping station completely cuts off the system from an external source of recharge. However, it is this installation that allows you to increase the water pressure to the required level.

The design consists of a surface pump powered by a hydraulic accumulator, equipped with a self-priming mechanism. Such a unit is guaranteed to improve the quality of water supply even if, for technical reasons, water is by definition not available on the upper floors of the building. The pressure level is regulated and maintained at the level set by the adjustment parameters of the relay using a membrane-valve system.

Main characteristics

When choosing a model, we recommend paying attention to the information provided by the manufacturer, since not all units are universal. In general, to select a pump or pumping station, it is enough to pay attention to the following characteristics:

• type of aircraft system - hot or cold;
• the power of the device, determined by the water intake capacity, the height of the water rise and maximum value pressure increase;
• pressure and flow;
• temperature Range;
• energy consumption parameters;
• productivity (amount of pumped mass per unit of time);
• the direction of the axis along which the working bodies move;
• start type (mechanical or automatic);
• motor cooling method;
• generated noise level;
• material for the production of the body and nodal connections.

Notable Manufacturers

The corresponding market segment is extensive - it presents equipment from both domestic and foreign manufacturers.

The leader is products, in particular, 15-90 / UPA15-90N. The advantages include low weight and size, ease of connection to the pipeline. With a relatively low power, they increase the pressure level by 1.5-2 atmospheres, are made from high-quality durable materials (cast iron and stainless steel, respectively) and practically do not create noise. Both units are equipped with a switch that allows you to adjust the operating parameters using manual or automatic settings.

The German brand Wilo produces pumps equipped with a flow sensor, mainly with a wet type of rotor cooling. Popular models are PB 088-EA, PB-H 089 EA, PB 201-EA and PB 400-EA in cast iron. The benefits of this brand include:

• easy installation due to fastening with nuts;
• thermal protection of the motor;
• small power consumption;
• compactness;
• low noise level;
• corrosion resistance.

Chinese pumps WESTER WPA 15-90/20-120 have proven to be reliable equipment in the affordable segment. You can use them in equipping apartments, country houses and cottages. Each of the models operates in one of the three provided modes in the temperature range of +6 ... +60 ° C, has a small consumption and raises water to a height of up to 9 m.

Connection rules

Installing a pressure booster pump is simple - you can handle it without the involvement of specialists. It is most effective to perform a cut at the entrance.

Circular pump installation:

• the product crashes in a single position according to information from the manufacturer;
• when starting work, make sure that the water supply system is turned off, there is no water in it;
• cut the pipes, connect and fix the pump, treat the joints with a moisture-resistant and heat-resistant sealant;
• connect the unit to the mains;
• test the installed pump.

Pumping stations also crash into the system, but this process is best left to specialists. The complexity of the installation lies in the fact that in addition to tapping and connecting the pump, it is necessary to properly assemble it and connect the inlet / outlet hoses. Labor intensive and demanding practical experience is the process of setting up a pumping station.

Installation in an apartment of a pump that increases water pressure GPD 15-9A (video)

With a situation where the weak pressure of the liquid in the water supply makes it impossible to use the washing and dishwashers and take a shower, faced by many of those who reside in apartment buildings. One of the most popular and most affordable ways to solve this problem is to install a pump in the water supply system of the apartment to increase the water pressure. Nevertheless, such a measure does not always solve the problem completely, and in some cases it does not solve it at all. In order not to find yourself in a situation where a pump to increase the water pressure in an apartment turns out to be a useless acquisition, to solve the problem with a weak water pressure, you should use not a superficial, but a deeper systematic approach.

What can cause low water pressure in the apartment

Before finding out why the pressure in the water supply system has decreased, you should understand in what units it is measured and what value of this parameter is considered normal for domestic water supply systems.

In information tables, as well as on scales control devices the value of fluid pressure can be expressed in four basic units of measurement: bar, technical atmosphere (at), meter of water column (m water column), kilo- and megapascals (kPa and MPa). When measuring pressure in domestic water systems, where too much accuracy of the parameters is not required, the following relationships between different units of measurement can be used:

1 bar \u003d 1 atm \u003d 10 m of water. Art. = 100 kPa = 0.1 MPa

What is the normal water pressure in the water supply of the apartment? According to current standards, the value of this parameter should be about four bar. This water pressure is quite enough to ensure that all plumbing fixtures and household appliances connected to the water supply system (faucets, drain cisterns, showers, washing machines and dishwashers, etc.). However, this regulatory requirement exactly observed in very rare cases. Usually in plumbing apartment buildings constant pressure jumps are observed, which can occur in the direction of both its increase and decrease.

If the issue of increased pressure in the domestic water supply is solved quite simply (by installing a water reducer at the inlet to the system that equalizes the water pressure in the entire internal piping), then in order to eliminate the problem with a decrease in pressure, it is necessary to determine why this happens.

In order to find out where the pressure drop occurs - in the water supply system of only your apartment, in the whole house or in apartments that receive water from one riser, you need to interview neighbors living in the upper, lower and side apartments. If it turns out that your neighbors also need an increase in water pressure, you should contact the utility service serving your home with this issue. If this problem is local and occurs only in your apartment, then you personally should look for ways to solve it.

First of all, it is necessary to localize the section of the apartment water supply, which needs to increase the water pressure. To solve this problem, a conventional pressure gauge is used, with which the water pressure is measured at various points in the water supply system. The data obtained as a result of measurements will allow us to draw conclusions about the negative factor, the impact of which leads to a weak pressure of water flowing from the taps in your apartment.

• Clogged pipes help identify different meanings pressure in certain sections of the apartment's water supply system. Most often, this situation occurs when using old steel pipes, the inner walls of which are characterized by high roughness. The only way to effectively solve this problem is to replace old pipes with new ones.
• It is also possible that the sump (filter) is clogged coarse cleaning), installed, as a rule, in front of water meters. If the reason for the poor water pressure lies precisely in this filter, in all sections of the water supply system located after such a device, the same low pressure will be recorded. The problem of clogging the coarse filter is solved quite simply: it is opened and the accumulated debris is cleaned out of it.
• The least critical and easiest to solve problem, which caused a weak water pressure, is clogging of the aerator - the filter mesh that the ganders of the cranes are equipped with. A manometer will also help determine that this is the reason, which in such cases will show that the fluid pressure in all parts of the water supply is normal, but only a weak stream flows out of the tap. To fix the problem, the filter mesh is unscrewed from the gander of the crane, thoroughly cleaned and installed back.

If the water pipes in your apartment, the filter and aerators are not clogged, and the water initially enters the water supply under low pressure from the central riser, then to increase the pressure, you can install a household pump in the apartment.

In many cases, the installation of a compact pump for pumping water from a central water supply system leads to an increase in pressure in water pipes apartments to standard values.

Varieties and design features of household pumps

Pumps for increasing the water pressure in the apartment according to the design can be divided into two large groups:

• devices with a "wet" rotor;
• water pumps with a "dry" rotor.

Pumps for increasing water pressure, belonging to the class of devices with a "wet" rotor, are compact in size, less noisy during operation and do not require special maintenance, since the lubrication of their internal parts is provided by the liquid they pump. The scheme for connecting such devices to the water supply is quite simple: they simply cut into the pipe and work like a flow pump. Such booster pumps are installed directly in front of the draw-off point or in front of household appliances, into which water must flow under a certain pressure.

Wet rotor pump design

If we talk about the shortcomings of booster pumps of this type, then this should include:

• low productivity;
• not too high rates of additionally created water pressure;
• the possibility of installation only in such a way that the axis of the rotor of the electric drive of the pump is located in a horizontal plane.

Water pumps for domestic plumbing, belonging to the class of devices with a "dry" rotor, have higher power and performance when compared with models with a "wet" rotor. This booster pump right choice and installation can be used to simultaneously service several points of water intake. The power unit of this type of electric pump-pump is moved away from the main body of the device and is equipped with its own air cooling system. Because of this, the booster pump with a "dry" rotor must additionally be cantilevered to the wall surface.

Pump device with a "dry" rotor

A dry rotor booster pump requires regular lubrication of internal components subject to friction. In addition, this high-pressure water pump creates a noticeable noise during operation, which must be taken into account when choosing a place for its installation.

Starting the booster pump for the water supply should only occur at those moments when the pressure of the liquid decreases. This requirement is met by pump control systems that can operate in manual or automatic mode.

The water pressure booster pump, equipped with a manual control system, is switched on by the user when the need arises. Accordingly, the user of such a device is responsible for the serviceability of the pump for increasing the water pressure in those cases, for example, when it will run dry, without water.

The automatic pressure pump, which is controlled by a water flow sensor, turns on automatically when liquid appears in the pipeline, and turns itself off when the pipeline is empty. Equipping the pump with such an automatic sensor makes it possible to prevent equipment from idling, which inevitably leads to overheating of the device and, accordingly, to its rapid breakdown. When choosing a pump that increases pressure, you can immediately purchase a model equipped with a water flow sensor, or purchase such a sensor separately if it is not provided in the factory configuration of the pumping device. If the flow sensor is purchased separately, it should be placed after the pump that increases the water pressure.

For installation in domestic water supply systems, in which the liquid pressure can periodically be both normal and reduced, it is better to use an automatic booster pump, additionally equipped with a water pressure sensor. The task of such a device, which also operates in automatic mode, is to turn on the pressure pump in cases where the water pressure drops below normal, and turn it off if the fluid pressure meets the required parameters. In this case, the pressure pump will not turn on even if it receives a control signal from the flow sensor, if the water pressure meets the required values.

In cases where the living area allows, an increase in the pressure of the liquid in the water supply system can be provided by a pumping station for the apartment. Such a pumping station, the design of which, in addition to the pump itself, consists of a membrane-type accumulator and a pressure sensor, not only increases the pressure to the required level - it creates it itself.

The efficiency of the pumps used to increase the pressure in the water supply system is largely determined by the correct choice of such equipment.

When purchasing a booster pump for water, you need to pay attention to the following parameters.

• The power of the device is a parameter that determines the number of water intake points that can be served by a pressure-increasing pump for a water supply system. When choosing a pump on this basis, you should first of all decide on how many taps and household appliances in the apartment it will have to supply water under the required pressure.
• The noise level that the pump makes when it pumps water into the system should also be known before purchase.
• Separate models of pumps for increasing water pressure are installed on pipelines of only a certain diameter. Otherwise, such a device will not only not contribute to an increase in water pressure, but will also start to work with overloads, which will lead to its rapid failure.
• The height of the water level rise that the pump can provide is a parameter that is relevant in cases where not ordinary apartment boosters are selected, but pumping stations used to increase the water pressure in the pipelines of several consumers at once.
• The performance of the device is a parameter on which the amount of liquid pumped by the pump to increase the pressure in the water supply system per unit time depends. When choosing a high-pressure pump for water, it should be borne in mind that the value of the named parameter must be higher than the average water consumption consumed by the water supply system or water intake point where such a device is planned to be installed.
• It is also important to consider the maximum allowable temperature of the pumped water. The type of pipeline (cold or hot water supply) on which the pump can be installed depends on the value of this parameter.
• The size of the device determines the choice of a section of the water supply for connecting the pump.
• The manufacturing company, its fame and credibility in the market are no less important than all of the above parameters. When choosing high pressure water pumps, it is better to give preference to models from well-known manufacturers that produce high quality products, provide reliable guarantees for them and ensure their Maintenance and repair.

How to ensure high water pressure throughout an apartment building

The problem of low water pressure, which worries residents of apartment buildings, can be solved in a more radical way - by installing a pumping station to increase water pressure, which will serve the entire house. Such pumping stations for supplying water to the apartments of the whole house, operating in automatic mode, are equipped with a self-priming centrifugal pump, a hydraulic accumulator and a pressure switch. Pumping stations of this type are also used in autonomous water supply systems for a private house or cottage.

Another way to increase the water pressure in the apartment pipeline is to install a storage tank in which the liquid will be accumulated and then, when the pressure in the pipeline drops, it will be returned to the system. Of course, given the small areas of typical apartments, it will be quite problematic to install such a capacity inside the housing. However, many of those who are constantly faced with problems associated not only with low water pressure in the pipeline, but also with its regular absence in it, install small storage tanks (200-500 liters) in their apartments.

A multi-pump station allows you to "remove" the effect of the upper and lower floors in terms of water supply to them

You can also place a storage tank of a much larger volume on the roof apartment building or in its attic. To install such a container, the volume of which can be very impressive, it is better to cooperate with the rest of the residents of the house in order to share the upcoming financial costs with everyone who wants to use the water supplied to taps or household appliances at the required pressure at any time.

A water pressure boosting station, equipped not only with a hydraulic accumulator and elements of an automation system, but also with a large storage tank, is another way to effectively solve the issue of low fluid pressure in the water supply systems of apartment buildings. Such a pressure boosting installation will provide all apartments in the house with water, not only in cases where the liquid pressure in the central water supply system needs to be increased, but also when water does not enter the pipes at all.

Naturally, in order to purchase all the elements of equipping such a serious installation, as well as to carry out its qualified installation, the residents of an apartment building will have to agree and incur joint costs.