When it is necessary to install a pump to increase the water pressure. How to increase water pressure in a private house

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- washing machine or dishwasher, boiler, gas hot water 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.

1 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 too long riser and the pumping station used in the pipeline configuration is not able to raise the water to the 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 backup-type models 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.

2 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.

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

2.2 Key Features

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 the maximum value of the 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.

3 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 wet type 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. They can be used 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.

4 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 must be correctly assembled and the inlet / outlet hoses connected. The process of setting up a pumping station is also time-consuming and requires practical experience.

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

For each of us, regardless of whether he lives in an apartment building or a private house, sooner or later a problem arises. weak pressure water in the water supply system. In summer, the situation worsens, as the volume of water consumption for irrigation increases significantly, and the pressure becomes even less. AT modern home there are appliances that are sensitive to the pressure of the water supply, such as a shower cabin, a hydromassage bath, a dishwasher and a washing machine. The minimum water pressure at which all this equipment will function properly is 2 atm. The standard water pressure at the exit from the riser to the apartment is even more - 4 atm.

To answer the question of how to increase water pressure without consequences for consumers and the water supply network, first you need to determine the reasons for the decrease in pressure. The following varieties can be distinguished:

leaks, breaks in the water supply system;

deposition of calcium salts on the inner surface of the pipes, which reduces the cross section of the pipe and their throughput;

clogging of the water treatment filter;

failure of fittings and valves.

In apartment buildings, it is very common to turn off one or more water supply pumps at the distribution point. This is done in order to save electricity or in the event of a malfunction of the electric pumps. As a rule, the water is not completely turned off, since redundant circuits are usually present, but the pressure is significantly reduced, and for regular work consumption devices, it needs to be significantly increased.

For primary diagnosis, the easiest way is to contact your neighbors and ask them about the presence of pressure in the water supply. A local decrease in pressure indicates defects in the plumbing wiring in your apartment. If there has been a general decrease in pressure, then this should be reported to the service organization. The pressure in the water supply system should not fall below one bar and rise above four bar.

For continuous monitoring of water pressure in the system, a pressure gauge is installed at the inlet of the water main to the house or apartment.

In a private house, when using a pumping station, its performance is checked. The most common malfunction is a clogged depth filter, which is located at the water intake.

In addition to coarse filters, there are fine filters. Usually they are installed individually for each device that consumes water.

After checking all the filters, it is necessary to check the pressure along the entire pipeline circuit sequentially in different places. In a complex water supply system, it is advisable to place several pressure gauges with which you can monitor the water pressure on different levels(floors) or by groups of consumers. Thus, it is possible to quickly detect a water leak, after which the pressure rises.

Please note that there are several units for measuring water pressure. The basic unit in the metric system of measures (SI) is Pascal. Water pressure is usually measured in megapascals (MPa). Non-systemic units are also used: bars, atmospheres, kgf / cm2, PSI, (sometimes even pounds / square inch). The table below compares all of these units.

The use of a flow and accumulative method of increasing pressure will increase the pressure of water from the water supply and ensure its supply in the required amount.

1. Tapping into the water supply under the pressure of the pump carried out at the entrance of the highway to the apartment. The water pressure increases by creating an additional vacuum at the exit from the common water supply to the house. Modern pumps small and energy efficient. Pressure adjustment is carried out both manually and automatically. The effect of this method will be an increase in pressure by 1-1.5 atm.

2. If the first method does not work, then as a more radical measure, you need to install a pumping station. Even with minimum pressure in the system, the installation will work around the clock in the accumulation mode and create the necessary reserve of water.

A receiver or a hydraulic accumulator allows you to be independent of pressure drops and even a short-term complete shutdown of water supply. It takes a lot to install more space and time than just installing a flow pump. The size of the storage tank should be ten times the daily water consumption. As a result, you get the ideal outlet pressure.

How to increase the water pressure in the apartment and solve pressing problems

There is water in the pipes, no pressure

If from the tap in the very worst case flows out 0.033 l / s, then installing a flow pump should solve your problem. The pressure will rise to optimal value and the problem of water supply will be solved. The pump turns on automatically at a pressure threshold of 0.02 MPa.

Such a small-sized pump is able to increase the pressure by a small amount (about 0.08-0.15 MPa is the difference at the inlet and outlet of the pump), which is enough to provide water to one consumer device (dishwasher or washing machine, shower cabin, etc.). ) or turning on the gas column, for which the threshold value is 0.05 MPa. The pump takes up little space, has a weight of about 1.5-3 kg. Installation does not take much time and, as a rule, does not require additional alterations to the plumbing system. It cuts directly behind the inlet valve and is connected using two detachable connections (“American”), due to which it can be quickly dismantled and replaced with a new one in case of a malfunction. The limitation on the maximum pressure and maximum temperature of the coolant (for different models is 60-90 ° C) must be taken into account when installing it.

Most pumps can operate autonomously without regular human intervention. It turns on after the tap is opened at the draw-off point and the flow rate of 0.33 l / s is exceeded. When the flow drops, the pump will automatically stop working and go into standby mode. If there is no need for it, then it can be completely disabled. After that, the water will flow by gravity, and the pump will not create much additional resistance. The pump is protected from idling because the sensor turns it off if there is no water in the pipes at all. Its noise level does not exceed 35 decibels and can be used in any residential area. To disadvantages this method can be attributed to inoperability during a power outage. However, this is true for any system that can increase the pressure in central water supply, since they are all volatile.

No pressure, no flow

A simple pump will not be enough if there are interruptions in the water supply. Unfortunately, this situation is often found in cities and towns of our country. Sometimes even schedules for water supply are set according to the time of day. In order not to experience constant discomfort in similar situations, it is necessary to create a supply of water at the moment when it enters the house. Accordingly, at the moment of disconnection, the created reserve will be spent, which should be sufficient.

For a family of three, it is necessary to install a tank of 500-600 liters. This volume is enough even if the water is turned off for 10-12 hours daily. The cost of the tank can vary depending on the material from 3500 to 8000 rubles. The storage tank is installed in a heated room, automatically filled at the time of water supply and works for pumping when water is not supplied. All consumers are “powered” from the tank through the collector (the so-called “comb”).

A float is used to control the water level in the tank. It turns off the water supply when the tank is full and, conversely, turns it on when the water falls below a certain level. Such a tank can work simultaneously for supply and accumulation. Be sure to provide an emergency drain to the sewer in case of failure of the pump float switch. In addition, provide a technological hole at the bottom of the tank, which will drain the water while the tank is being flushed. Regular (at least once a month) cleaning of the tank guarantees high water quality and trouble-free operation of the system.

The standard material for the tank is polyethylene or polyvinyl chloride. The location of the tank should provide minimum distance to consumers. As a rule, this is the kitchen or bathroom.

In addition to the storage tank, in order to increase the water pressure, it is recommended to connect a pumping station (cost 5-13 thousand rubles). An electric hydraulic pump, a hydraulic accumulator (receiver) with a capacity of approximately 1/10 of the storage tank capacity, and a pressure switch are connected in series in it. The principle of operation of such a station is as follows. The pump creates the necessary pressure in the accumulator (usually 0.3 MPa or another value that can be adjusted independently). After that, water can be parsed at a given pressure. The pressure in the receiver gradually drops to a threshold value, after which the pump turns on again and raises it to 0.3 MPa, pumping water from the storage tank. If no water is consumed, the pump is idle in standby mode. The pump is also protected against dry running. If the water in the storage tank is over, then it simply will not turn on.

The noise characteristics of the pump must be taken into account when installing the system. The self-priming pump works quite loudly, so you must either choose a less noisy pump, or mount the system in a place with sound insulation.

How to increase water pressure in a private house

Drilling a well or a well is a very economical option for a water supply device in a private house. High autonomy and comfort are provided, and the cost of the water obtained is much lower. The cost of a well and a pumping station pays off quickly enough.

Such a system is designed in accordance with the individual needs and wishes of the owners, so consider typical problems and errors that occur during installation and affect the quality of the water supply.

The most common breakdowns that occur during the operation of autonomous water supply can be divided into several main groups:

Malfunction of the pressure switch or regulator- leads to sharp jumps in the increase in water pressure or, conversely, to a decrease in pressure. There may also be a complete shutdown of water in the system. The regulator membrane loses its elasticity during operation, becomes covered with calcium salts and begins to give incorrect readings. Regulator failures can be associated with oxidation of contacts or failure of any elements of the control board. The sensor in this case can become a fire hazard, so disconnect it from electrical supply and use a mechanical pressure gauge to check the pressure in the system. If it does not match the set value, then the relay is faulty. It must either be repaired, or in case of traces of melting or corrosion of the contacts, replace it with a new one.

Broken diaphragm in accumulator- the receiver maintains the set pressure in the case of a good compensation system. A rubber spherical chamber is usually used, into which air is pumped under the required pressure (the value is indicated in the instructions). When the pump is running, the chamber is compressed and, due to its elasticity, compensates for the required volume of water. This scheme allows the pump to operate optimally and protects it from frequent on / off cycles, which can cause it to fail. The membrane is replaced quite simply by unscrewing the flange. When replacing, check the housing in which the membrane is located. It should not contain any foreign objects and dirt.

The pollution situation is relevant and when washing a large amount of sand into the compensating tank. The tank may be filled with mud or sand. Dirt can spread throughout the plumbing in the house if its level is above the water intake. This does not happen often, but it should not be forgotten. The well may become silted up, and the outboard pump may fall to the bottom of the well, and then the sand will fall into the tank. The water pressure will rise and the accumulator will clog.

Pump failure- This is usually an operational feature. The pump itself is quite simple in design and reliable. Problems with it usually begin after another element of the system (a relay or a compensating chamber) has failed and the pump begins to function in abnormal mode. The operating time increases, frequent on / off cycles occur, etc. Natural wear can also degrade pump performance.

Constant pressure drop and pump cycling- a sign of a broken check valve. If the valve is out of order, then the water can go back into the well or well. The relay starts to work constantly, and the pump runs idle. The water that he raised from the well is drained back, and does not go to consumer needs.

Here were listed the main malfunctions of autonomous water supply. But there are other problems that arise during the installation and operation of the water intake system, which can prevent the increase in water pressure.

What are the pumps that increase the water pressure in the water supply

An additional way to increase the pressure in the system is to install an electric pump. Pumping equipment is selected based on the following criteria:

the length of the water main;

the diameter of the pipes used;

height of water supply;

required daily cubic capacity.

The main functional indicators of the pump are its performance and power. These parameters are indicated in the instructions, and are also usually encrypted in the pump model index. The quality of workmanship and the materials used are the main criteria for choosing a pump.

A booster pump should not be used in private homes that have additional equipment that consumes water.

The range of prices for pumps is from 2500 rubles to 12 thousand rubles, depending on the brand of the manufacturer and the power of the pump. Pumps come in different configurations. Additionally, the pump can be equipped with a flow sensor, as well as a check valve that protects consumer devices from water hammer.

In addition, there are pumps with automatic shutdown and variable power. Such functions save on electricity and extend the life of the pump, as they reduce its operation time and power to optimal values. Additionally, the pump can be supplied in a moisture-proof design or be equipped with a water purification filter.

To increase the pressure, one must also take into account the modes in which the pump operates:

manual control means permanent job pump without stopping. Human presence is required to switch on and off;

automatic mode is a privilege of more expensive models. They turn on and off independently based on the readings of sensors built into them or additionally equipped separately. The pump has a longer life because it only works when needed. Accordingly, the device does not have idle overruns.

The pumps differ in the type of housing cooling and overheating protection:

cooling due to the blades of the shaft provides a high efficiency of the mechanism, while the noise level is quite low. The operation of such equipment can be checked visually. The disadvantage is that such a pump is undesirable to use in dusty areas;

liquid cooling of the pump ensures its complete noiselessness. However, such a pump is usually less powerful.

When choosing a pump, consider its size. Because sometimes it is not possible to place a large apparatus in small room. There are pumps used only for hot or only for cold water, as well as universal ones.

When choosing equipment, decide on its characteristics such as:

the amount by which it is necessary to increase the pressure;

complexity of equipment installation;

nameplate capacity and performance of equipment;

dimensions of the pump and accessories;

cost of equipment;

necessary additional features and characteristics.

How to choose a pump that increases water pressure in an apartment and a private house

Pump installation without additional features- the simplest option. If this solves the problem of increasing the water pressure in the house, then it is worth choosing it.

The high pressure water pump can be with a dry or wet rotor.

– the most compact, silent and easy to install. They crash sequentially in front of the consumer or the draw-off point. Unpretentious to voltage drops. They are lubricated by the pumped liquid, so there is no need for additional lubrication.

Along with the advantages, there are also disadvantages. low power predetermined by small dimensions and the absence of a lubrication system. The axis of the rotor of the electric motor must be located only horizontally. This imposes some restrictions on the possibilities of installation or additional bends in the water supply.

2. Dry rotor pumps very different in appearance from their "wet" counterparts. The rotor is moved to the side and requires additional fastening. A separate air-cooling system has its own fan on the impeller axis and creates additional noise during operation. More space is required for installation and easy placement of the pump. However, it is able to increase the water pressure in the system much more.

More power and performance, as well as higher performance characteristics put this type of pumps on a higher level. It is able to serve several consumers at the same time and at the same time increase the pressure in the system to the desired level.

A dry rotor, as the name suggests, requires special regular lubrication of its components. The pump must be installed in an accessible and serviceable location. Increased noise from the cooling fan suggests choosing a remote installation location.

The above devices, regardless of the type of rotor, are very similar to circulation pumps built into the heating system.

Circulation pumps allow you to increase the pressure and circulation rate of the coolant in an autonomous heating system. Their main feature is that they work continuously while the heating system is functioning. The only exceptions are pumps built into heating boilers, They work only at the moment of heating the coolant and turn off with a short delay after the end of heating. Despite continuous operation, they function in a more gentle mode. Their main task is not to increase the pressure, but to increase the speed of the passage of the liquid.

There are two ways to solve the pump control problem:

Manual control - cheap, but not the best convenient option. Manual switching off and on does not avoid the so-called human factor. Forgetfulness and inattention are typical for many people. There are specific consumer devices for which it is not possible to use manual control. For example, a dishwasher. It turns the water supply on and off according to a program that cannot be monitored by a person.

A more advanced solution is an automatic pump controlled by a flow sensor. It is activated by a sensor signal at the moment the water consumer tap is opened. It also controls the presence of water at the inlet. If the water supply is turned off, the pump will not turn on. Thus, it is protected from overheating and dry running.

The flow sensor is usually included with the pump. But even if it is missing or out of order, you can always buy it separately and equip the pump with it. It is installed after the pump in the direction of water flow.

Protection against unstable water pressure can also be a pressure sensor. It is necessary to increase the pressure only at the moment when it is below the set value and to prevent the pump from turning on at normal pressure in the system is the task of the pressure sensor. It is installed in front of the pump in the direction of the water flow.

Power is supplied to the electric motor of the device only if the pressure sensor connected to it gives a “increase” signal. If the pressure is normal, the pump will not turn on. This is best option in terms of energy consumption and pump durability.

When choosing a pump, calculate how much it should raise the pressure in the water supply system. The difference between inlet pressure and pump outlet pressure is typically 0.8–1.5 bar (8–15 meters of water column). This value depends on nominal pressure consumers of water specified in the operating instructions for the device.

In some cases, there is a need to increase the return of the supply pipe hot water. The principle of operation of the pump is the same, but it is necessary that the instructions indicate the possibility of using hot water, as a rule, up to 90 ° C.

Pump performance is calculated as the amount of water pumped per unit of time. This parameter is specified in the instructions, and is also usually encrypted in the pump model index. It is necessary to provide a power reserve for the pump, taking into account the average daily flow rate.

The brand of the manufacturer affects the cost of the device. It is also advisable to familiarize yourself with warranty obligations and the development of the service network in your region.

How to install a station that increases water pressure

The next opportunity to radically increase the water pressure is the installation of a full-fledged pumping station.

The pumping station uses a surface centrifugal self-priming pump. If the pump is equipped with an injector, this makes it possible to significantly increase its performance when lifting water from great depths. The disadvantage is the increased noise.

The hydraulic accumulator significantly expands the possibilities and ease of use of the pumping station. In this case, a pressure sensor is necessarily placed, but after the pump in front of the accumulator. The sensor switches off the pump after sufficient pressure has been built up. If the sensor is faulty, a safety valve is provided in the accumulator.

It is better to increase the pressure in the system to excess in order to meet the needs of all water consumers with a margin and maintain a small reserve. The pump is turned on and off according to threshold values ​​that make up a fork relative to the nominal value (usually 0.3 MPa). If you remove this plug, then the on / off cycles will be too frequent.

The task of the pumping station is not just to increase the pressure, but also to create a certain reserve of water in case of its complete shutdown in the main pipeline. This is very convenient and allows you not to depend on the poor performance of the water supply network.

In the presence of a hydraulic accumulator, the flow sensor can be excluded, since the pump is activated not when the tap is turned on, but when the upper threshold value in the tank is reached.

To monitor and control the operation of the pumping station, a pressure gauge is installed that shows the water pressure in the tank.

To install a pumping station, it is best to invite a specialist of the appropriate profile. If you have experience in plumbing and electrical work, then you can handle this yourself.

The pumping station creates quite a lot of noise during operation, so it is better to isolate it from residential premises. In addition, it must be placed in a warm room so that the water in the tank, in the pump and in the supply hoses does not freeze in winter.

The capacity for the accumulator can be from 10 to 200 liters. Small tanks cost less, but keep in mind that the larger the tank, the fewer on/off cycles the pump will have. In addition, a larger tank volume allows smoother pressure control, because water flow has less effect on pressure reduction. The unit will turn on less often and, accordingly, create less noise.

The tank can be bought both separately and as part of a pumping station. For two people, a tank with a volume of 20-30 liters is suitable. A family of four already needs a tank of at least 50 liters. Such a hydraulic accumulator will be able to satisfy all current needs.

A comprehensive solution to the problem includes a non-pressure storage tank with a float sensor. Such a solution will protect you from lack of water in the water supply network for a long time (up to 2 days), if you use water sparingly. But in this case, you will have to regularly (about 1 time per month) rinse the container with water.

The pumping station allows you to increase the pressure in the entire water supply system in a house or apartment. Therefore, when designing, it is necessary to take into account to what extent it is necessary to increase the characteristics of the water supply system so that all consumers, without exception, feel comfortable. Typically, power is selected according to the farthest or highest consumer device. Especially if it is planned to install a pumping station on a house with several floors or for “powering” separate buildings (for example, a garage, a bathhouse). For a conventional mixer, a pressure of 1-1.5 atm is sufficient. Higher pressure is already needed to supply water to the second floor. If devices with a given water pressure are installed, then you need to focus on the instructions for their installation.

The calculation of productivity (flow rate per unit of time) is made taking into account all consumers and a hypothetical situation when all taps are turned on at the same time. Even in this case, the performance of the pumping station should be enough with a margin.

There is a special calculation method, which is based on the fact that each point of water consumption has its own average consumption water, measured, for example, in liters per second.

The main types of home (apartment) water points	Average flow (liters per second)
Washbasin faucet in the bathroom
Toilet cistern
Faucet on kitchen sink
Dishwasher
Bath shower faucet
Shower cubicle
Shower cubicle or whirlpool tub
Washing machine
Faucet (¾") for household needs (watering, car washing, cleaning, etc.)

As can be seen from the description of the section, such a station is not so easy to install. Yes, and it costs much more than a pump.

Where is the best place to buy a pump that increases water pressure

Having received preliminary information on the types and types of devices that can increase the water pressure in the home plumbing, you can begin to independently create autonomous system water supply with provision in it normal pressure. When choosing a pump, it must be remembered that this is a complex and expensive device that, with the right approach, will serve for many years. Therefore, buy water supply equipment only from trusted suppliers who can provide you with the necessary level of advice and service. SantechStandard is a company specializing in such equipment. Experts will help you choose necessary system water supply and purchase all components that comply with GOST R.

In the catalog of our company you can find and order high-performance pumps that increase the water pressure in the system, as well as all necessary accessories for their installation - pipes, fittings, flexible hoses and much more.

When purchasing equipment and components from the SantekhStandard company, you can not worry about the quality and compatibility of the purchased products.

You can get qualified advice and place an order by phone:

Plumbing - part engineering networks private houses and apartments. Due to the weak pressure in the pipes, residents often receive an insufficient amount of water. This situation limits the ability to use two plumbing points at the same time, and the washing machine and dishwasher simply do not turn on. The only way to make a difference is with a pumping station designed to increase water pressure. The power and performance of the installation is selected individually. The compact device is able to normalize the level of pressure and maintain an optimal indicator.

For the city water supply network, the accepted GOST standards assume a pressure of 4 atmospheres. Such an indicator is rare, seasonal changes in water consumption make it fluctuate in the range of 2.5-7 atmospheres. normal work shower, washing machine and sink will provide a parameter of 2 atmospheres, a jacuzzi or watering the garden will require raising it to 4. In reality, the pressure is often 1-1.5 atmospheres, excluding the stable operation of plumbing equipment. High pressure is also a negative factor, it negatively affects the elements of the network, leading to their rapid wear.

The problem of insufficient water supply is faced by residents of apartments on the upper floors and owners of private houses in the summer. First of all, it is necessary to exclude the possibility of clogging of pipes or their overgrowth with lime deposits. If the problem is not in the diameter of the pipes, then the installation of pumping equipment will radically solve the issue. The pumping station will raise and stabilize the pressure in the system.

Classification of pumping equipment

A budgetary way to increase the pressure in the water supply of an apartment or a private house is to install a pressure pump. Devices can be divided into main groups:

• manual - after being connected to the power supply, they are constantly in working order. 24/7 operation leads to rapid wear. If there is no water in the system, the device may burn out;
• automatic - the design provides for a sensor that turns on the unit when the fluid moves. This option will cost more, but will last longer. The equipment is designed for pumping clean water, so it is better to equip the system with a coarse filter. The low weight and dimensions of the pump allow it to be installed directly on the pipeline.

The pump motor is cooled in two ways:

• the flow of passing fluid;
• fan mounted on the motor shaft.

On the basis of water-lifting pumps, stations for increasing water pressure are produced.

If the liquid in the pipes is often completely absent, it will be necessary to upgrade the system and install a self-priming mini pump station. This compact device is able to increase the pressure and keep it at a given level.

Equipment design includes:

• storage tank membrane type (hydraulic accumulator);
• centrifugal pump;
• system control relay.

The system automatically supplies water to fill the tank. The consumer uses the liquid accumulated in the accumulator. The main advantage of such a system is the prevention of pressure surges in pipes. In addition, the mini station provides a supply of fluid in the accumulator, which can be used at any time.

With a drop in the water level, the pressure in the system decreases; at a given indicator, the relay turns on the pump again. The number of inclusions and the life of the pump depends on the volume of the tank, the larger it is, the less often the electronics that bring the unit into working condition are triggered. The area of ​​​​the apartment is limited, so it is problematic to find a place for a volumetric tank, in addition, the absorption of water by the equipment leads to airing the system. Installing a pressure boosting station without the permission of the public utility is illegal, and it will not be easy to get approval, so installing a booster pump is preferable.

How to choose the right unit

Among the main criteria for choosing a mini station to increase the pressure in the system:

1. Productivity - the amount of water that the installation pumps per unit of time (minute, hour).
2. Power - is selected based on the number of consumers. A high score is not always a plus. The station sucks water from a source (well, pipeline), if the pump runs faster than it is being filled, then the unit may be left without liquid and overheat.
3. Compliance of the model with the cross section of pipes in an apartment or a private house.
4. Maximum lifting height. This indicator is important for the use of equipment for autonomous water intake of a private house and for pumping water to the upper floors of an apartment building.
5. Unit size. The dimensions of the station, including the accumulator, must correspond to the area of ​​\u200b\u200bthe room where it will be installed.
6. Noise level. This criterion depends on the cooling method, the "wet rotor" works silently, and the "dry rotor" is noisy due to the fan blades.
7. Permissible temperature range. Devices can be for hot, cold water or universal.
8. Installation type - vertical or horizontal, the choice depends on the characteristics of the room.
9. Manufacturer's reputation. Products of unknown companies are distinguished by an attractive price, but their quality is doubtful, and there are no service centers. It is better to buy high-quality and reliable equipment from a manufacturer with positive reviews.

Notable hardware manufacturers

DAB offers a compact electronically controlled station E.sybox mini for installation in an apartment or house. It is distinguished by the absence of noise and vibration, provides a constant pressure in the pipes, and is easy to install. Lifting height - 8m, productivity - 80 l / min, membrane tank 1 liter. The mini unit is easily placed under the sink.

The model of the German company Wilo PV-088 EA is mounted on metal pipes hot and cold water supply. The maximum head lift is up to 8 m, it works in manual and automatic mode. The mechanism is cooled by fluid flow. Low noise level allows you to avoid discomfort when placed in an apartment.

The Grundfos UPA 15-90 pump operates in three modes: Automatic, Manual, Off. The automatic mode is controlled by a built-in sensor. Manual mode involves constant operation, so you need to monitor the presence of water in the system. The unit is characterized by low noise and low weight. Its capacity is up to 1.5 cu. m / h, working temperature– 60º C.

Unlike the listed models, the Jemix W15GR booster pump operates on the “dry rotor” principle. The mechanism is cooled by a built-in fan. This design is more productive, but creates noise during operation. It has three operating modes: "MANUAL" - manual, "AUTO" - automatic, "OFF" - off. Provides head lift up to 10 m, productivity - 1.5 cubic meters. m/h

Mounting the booster pump

The installation of pressurization equipment begins with shutting off the water. The work includes the following steps:

1. The length of the pump is measured along with the fitting.
2. At the installation site, the length of the section is marked and the pipe is cut out.
3. With outside the resulting ends are threaded.
4. Adapters of the required diameter are installed, a fitting supplied with the pump is screwed to them. On the body of the equipment, the arrow indicates the movement of the flow, it is important to install it according to the given direction.
5. To install a separate outlet, a three-core cable is pulled. Grounding is mandatory, and the connection is made through the RCD.
6. The water opens and the pump is tested to see if it works. If the connection of the fittings is not tight enough, wind up the FUM tape.

DIY station

If there was no device with the necessary parameters on the counter, you can make it yourself from components with the desired characteristics. The pressure boosting station consists of a small number of components and parts, it is enough to purchase a pump, a hydraulic accumulator of the required volume, and an automation unit. A 50-liter storage tank is suitable for a family of three; stagnant water is also undesirable.

The control system should include:

• smooth start of the pump;
• dry running protection;
• overload protection.

During installation, all elements of the water pressure increase station are installed in one place.

Tips for choosing and installing a mini pumping station

1. Give preference to the model with a check valve, this design increases the safety of the equipment.
2. Choose a station with a built-in filter, it will protect parts from foreign particles. When clogged, the element is removed and washed.
3. To accommodate the equipment, you need a warm room, otherwise, at a negative temperature, the water in the accumulator will freeze.
4. To carry out preventive maintenance without problems, install a shut-off valve before the pump.

In contact with

The situation when the weak pressure of the liquid in the water supply does not make it possible to use the washing machine and dishwasher and take a shower is faced by many of those who live in apartment buildings. One of the most popular and most available ways The solution to 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. Such a pressure of water is quite enough so that all plumbing fixtures and equipment can work without interruption in the apartment. Appliances connected to the water supply system (faucets, drains, showers, washing machines and dishwashers, etc.). However, this regulatory requirement strictly 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 question is high blood pressure in a domestic water supply system is solved quite simply (by installing a water reducer at the inlet to the system, which 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 (coarse filter) is clogged, which is usually installed 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 to increase the water pressure in the apartment 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 right in front of the tapping 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 home 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 factory equipped. pumping device it is not provided. 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 liquid 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, is made up 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 take into account the maximum allowable temperature 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 area standard apartments, to install such a container inside the housing will be quite problematic. 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

It is also possible to place a storage capacity of a much larger volume on the roof of an apartment building or in its attic part. 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 pressure of the liquid in central system water supply will need to be increased, but also when water does not enter the pipes at all.

The life of a modern person without running water is unthinkable. But often the owners of both apartments and summer cottages different reasons faced with the problem of insufficient pressure in the system. This can bring a lot of inconvenience, because household appliances - washing and dishwasher, boiler, geyser stop working at low water pressure. It happens that water may not flow to the upper floors of skyscrapers at all. In private houses, this problem can occur if the system is based on a storage tank and water flows by gravity.

There are two ways to solve the problem of low pressure. You can install a pumping station, but this method is not at all cheap. It will be easier and cheaper to install a boost pump.

1 Characteristics and principle of operation

Plumbing in multi-storey and private houses includes several basic structures and elements. The main one is the pipeline.

One of important parameters water supply is the pressure in the system. European water pressure standards are 4-5 atmospheres. This minimum comes from the necessary requirements of plumbing fixtures. For example, at a pressure below 2 atmospheres, the washing machine will not even start. For various showers, whirlpools require a pressure of 4 atmospheres. And for hydromassage devices, even higher parameters are needed.

However, pressure above 7 atmospheres can seriously damage the water supply network. Therefore, the water pressure in the system must be within the required limits and be stable.

2 Types of pumps

Devices for increasing the pressure in the pipeline come in various designs and can vary significantly from each other. By purpose and type of design, booster pumps are divided into two groups.

2.1 Circulating

circulation pumps. This is a standard booster. It promotes the circulation of water in the pipes, which is why it is called circulation. The mechanism has small size and compact. It cuts into a certain part of the water supply to increase the pressure and speed of water circulation.

Initially, these devices were intended for heating and systems with hot water. In lingering heating circuits, the normal circulation of the carrier in the system is difficult. Therefore, a mechanism that increases pressure is used.

The situation is similar in conventional plumbing. Only here the device is already working, increasing the total pressure of the water.

Circulation pumps consist of a motor that rotates a rotor with an impeller. This is small device injects liquid in the chamber and improves the parameters of the pipeline.

2.2 Self-priming

Self-priming booster pumping stations. This unit consists of a surface pump and a hydraulic accumulator. The principle of operation of a self-priming pump is self-priming, that is, it can lift water in pipes even if it is not available. Then the pump pumps a certain level of fluid into the accumulator, on which the system closes. The accumulator regulates the level of pressure in the system and maintains it at the required level due to the presence of check valves and an air membrane.

The device is configured using a pressure switch. It is also responsible for the automation of all processes.

2.3 pros and cons of different types of booster pumps

The circulation pump has low power. This increases the pressure by 2-3 atmospheres. Devices with more powerful motors work more efficiently. They pump up to 2-3 cubic meters of water per hour.

Boost stations are more powerful. It consumes at least 2 kW, but raises water up to a distance of 12 meters.

Thus, the circulation pump eliminates the problem in a separate area, and the suction equipment is used to regulate the entire water supply in an apartment or private house. Self-priming devices lift liquid to a height within 12 m.

Circulation pumps are also divided according to the type of media.

1. For cold water. These are the simplest models, usually made of cheap plastic. They pump water up to 40 degrees.
2. For hot water. This variety is used in the heating and hot water supply system. Made from stainless steel and high quality rubber.

There are also universal devices that work with liquids of various temperatures.

According to the type of control, the pumps that increase the pressure of water in the system are divided into:

1. Devices with manual control. The device is either on or off all the time. Just make sure there is fluid in the system. Running "dry" pump can burn out. Therefore, it is turned on to perform one-time actions and turned off after work is completed.
2. Devices with automatic control. They are equipped with a special sensor that turns on the device if necessary. When there is no water in the system, the sensor turns off the device.

The cooling system protects the mechanism from overheating. It can be of two types.

1. With a "wet rotor" devices are cooled by water flowing through the pump. Their operation is almost silent, but they can overheat when working without water.
2. Devices with a "dry rotor" are cooled by rotating blades that are mounted on a shaft. They have a higher level of performance, but are also quite noisy during operation.

Pumps are also divided according to the installation method into:

• horizontal;
• vertical;
• universal.

They differ in the presence of speeds:

• single-stage - one pumping speed;
• multistage - work of different intensity, depending on the flow of water.

Construction type:

• in-line - these are compact models, inefficient. Embedded in the pipeline;
• vortex - high performance, but noisy in operation and require special piping.

2.4 How it works

The booster pumps work as follows. When the fluid flow reaches 1.5 cubic meters, the position of the motion sensor petal changes. The pump will then turn on automatically. When fluid flow is stopped, the pump turns off.

Sometimes it is necessary to install two or more step-up devices. This need arises in cases with improperly designed plumbing system. The cost of additional equipment and pipeline modifications should be calculated. And choose a more economical option.

3 Device selection

When choosing a pressure booster, the characteristics of the equipment, calculations, required tasks, the manufacturer's company, as well as the amount for its purchase are taken into account.

If there is liquid in the pipeline, but its pressure is weak, you can choose a circulation model.

If there is no water in the tap at all, but there is below the level, then you should choose a booster station with a self-priming pump.

For plumbing in a private house, built-in pumps with a wet rotor are usually chosen. This option is easy to install and silent in operation.

Devices with multi-stage adjustment and a stainless steel case are more preferable, but also more expensive.

3.1 What parameters do you pay attention to when choosing?

When choosing a pump responsible for increasing the pressure in the water supply, its parameters are also taken into account.

1. Power. Must match the needs of the system. The number of taps, characteristics of household appliances are taken into account. Too much power can be harmful.
2. lift height. A self-priming apparatus designed for smaller loads will not raise water to a sufficient height.
3. Pipe section size. If the device and the pipe have a different cross section, then the pump will work with overloads and the pressure will be less than expected.
4. Noise level.
5. Apparatus size.

4 Reverse osmosis systems

There are methods for water purification:

• mechanical;
• reagent;
• chemical.

But at present, the reverse osmosis water treatment scheme is becoming more and more popular. It is based on the membrane method, in which water is purified from impurities.

4.1 When is a pump needed?

Pumps for reverse osmosis systems are used if the pressure in the pipeline is below 2.8 atmospheres, which is necessary for the operation of the installation. If the pressure is below the required value, the unit will shut down.

The reverse osmosis scheme with a pump differs from the usual one only in the presence of a pump. The reverse osmosis pump is equipped with high and low pressure sensors that turn off the device if necessary. The device also has dry run protection. If the liquid storage tank is full, then the sensor turns off the pump, and when the water starts to be consumed, it turns on the pump again. The operating voltage of the pump is 24 V and 36 V. The voltage transformer converts the mains voltage into a working pump. Transformer models differ in different types pump The reverse osmosis circuit with a pump allows you to receive clean water around the clock.

5 Hardware installation

Installation of the device for increasing the water pressure is performed as follows.

1. Mark the pipe on which the pump will be installed, taking into account the length of the device and adapters.
2. The water is turned off in the room.
3. The pipe is cut in the marked places.
4. Threads are made on the cut ends of the pipe.
5. Adapters with internal threads are screwed onto the pipes.
6. Fittings that are included in the kit are screwed into the adapters. When installing the device, follow the instructions of the arrow on the body of the device, which indicates the direction of water flow.
7. A three-core cable is pulled from the electrical panel to the device. It is advisable to equip a socket near the device, connect the device through a separate RCD.
8. Turn on the pump and check its operation. Check for leaks from fittings. Tighten fasteners if necessary. For effective sealing, FUM tape is used, which is wound around the thread.

5.1 GPD 15-9A BOOSTER PUMP INSTALLATION (VIDEO)