Encyclopedia of fire safety

Water supply stations. Common breakdowns of Grundfos pumps and how to fix them Installation of Grundfos pumping stations

The Grundfos pumping station is a product of the German company of the same name. The authority of the manufacturer is high, the demand for products is 50% of the world demand. With the consistently high quality of products, the company opens subsidiaries. Their products are tailored to climatic features region. In Russia, the branch operates in Istra, the quality of Grundfos is controlled by specialists from Germany. With high reliability, the equipment is sold at an affordable price.

Model range of pumping stations of the German manufacturer

Pumping stations are used in domestic and industrial water systems:

  1. Fire extinguishing pumping stations are characterized by high productivity and high pressure.
  2. household pumping stations Grundfos are used in private homes. They are compact and quiet in operation.
  3. Booster pumping stations are used in public waterways and in industry. They are called second lift stations.

Any of the listed series of equipment is presented in various designs, meets certain tasks. The manufacturer has simplified the installation of equipment as much as possible. An inexperienced summer resident can cope with the installation, guided by the maintenance instructions for the Grundfos pumping station.

Characteristics of Grundfos products

Most of all, the demand for equipment from a well-known manufacturer is in global agriculture. Here they are required for irrigation of land, to increase the pressure in systems located far from water sources. The user can choose equipment for irrigation or domestic water supply.

A feature of grundfos pumping stations is the thoughtful layout of the nodes that form a single system. The case from special steel reliably protects working body. The complex can pump water from open reservoirs, wells and wells. MQ, JPB series are developed according to the company's technology, but subsidiaries are produced only for their region, without the right to export.

JP Pump Series

The JP series represents centrifugal self-priming pumps, which are equipped with Grundfos JP Booster pumping stations. Complete with the pump there is a hydraulic tank with a capacity of 24-60 liters, depending on the performance. The best irrigation system is an ejector-type station that supplies water from open reservoirs and pools.

The injection system lifts water from a depth of 25 meters, while the engine is located on the surface, and the lifting mechanism is lowered into the well. At the same time, the system works almost silently.

The most famous of this series of equipment are grundfos JP Basic 3pt pumping stations. The self-priming pump with a submersible ejector has the best price-performance ratio of all household pumps from this company. High performance, 3.6 cu. m / hour, head 47 m of water. Art. and a membrane accumulator characterize the demand for equipment. During operation, the pump supplies water saturated with air, while not reducing productivity. Most often, the pump is used in private farmsteads.

Equipment Grundfos series The Hydrojet JP is highly durable. Anti-corrosion coating is made outside and inside. Reliable automation guides the process in economy mode. With a long flow of water, the pump is completely switched off.

The pumps operate by creating a pressure of 5 or 6 atmospheres in the system. The station is equipped with membrane-type accumulator tanks of various capacities. The grundfos hydroijet jp5 pumping station for residential buildings is equipped with a 24 l tank. But the system keeps the parameters more evenly, in which a hydraulic accumulator with a capacity of 60 liters is installed. With a power of 0.75 kW, the pump has a head of 43 m and costs 13,800 rubles.

MQ pumps

Pumps complete with diaphragm tanks represent a series of stations for domestic use. The battery tank is divided by a membrane partition. Water is in one part of it, air is supplied under pressure in the other. As a result, the pressure in the water system will always be stable, and the pump is less likely to receive a command to turn on. The equipment is produced with and without a hydraulic tank.

The grundfos mq 3-45 series pumps work with a membrane storage tank. The system is pressurized up to 4.5 bar or 45 m of water. Art. It is intended for the organization of water supply of private houses. The device can be used as a booster. Productivity of the device is 3 cubic meters / hour. The system has self-priming from a depth of up to 8 meters. Pump weight 13 kg. The grundfos 3-35 pumping station, 35 meters of water column, also has similar characteristics.

For the operation of these particular pumping stations, pressure drops are critical. The equipment works stably at a voltage of 220-240 V, in other ranges the pump will fail. For the safety of the equipment, it is necessary to use a voltage stabilizer. For rare switching on, an additional storage tank is used.

Varieties of Grundfos pumping stations used in industry

The fire extinguishing station is represented by pressurized water and foam systems. Type of Grundfos pumps Hydro MX has over 60 models. Equipment can be selected for different systems fire fighting:

  • performance - 1.1-55 kW, s automatic system launch;
  • productivity - up to 120 cubic meters / hour;
  • pressure - 145 m.

Pumping stations "Grunfos", capable of supplying foam, are the main tool in fire extinguishing installations. Such systems are expensive, from 882 thousand rubles.

Grundfos Hydro booster stations present new type equipment. Stations serve to raise the pressure in the water supply system. In public utilities, Grundfos Hydro 2000 pumping stations are in demand. The station is small-sized, operates in automatic mode turns on when the pressure in the system is reduced. The compact unit has technical characteristics:

  • productivity - 600 cubic meters. m / hour;
  • head - 144 m;
  • maximum temperature of the agent - +70 0 С;
  • working pressure - 16 bar.

The pump can be installed in the heating system.

The manufacturer supplies not only surface equipment, but also submersible pumping stations. Their cost is much higher, but the systems are the most reliable in operation.

Reading 7 min.

Pumping stations as an alternative to the classic productive pump are very popular despite more high cost this class of equipment. Segment leader pumping equipment in the global and domestic market is the Grundfos brand.

Grundfos pumping stations are distinguished by reliability, durability, uptime, and their technical characteristics are higher than those of their counterparts.

Types and differences of Grundfos pumping stations

The main purpose of a pumping station as part of a heating or water supply system is to increase the pressure in the system and ensure efficient water intake from a source or reservoir. A classic pumping station consists of a pump, which often includes a diffuser, a pressure or storage tank (obsolete modification), a membrane, a pressure switch, a pressure gauge, cables for connecting and grounding the unit.

Depending on the purpose and operating conditions of the pumping station, it can be equipped with a submersible, surface or borehole pump.

Grundfos pumping stations are mainly equipped with a hydraulic accumulator, or a pressure tank - in such a system, the pressure is maintained at the level set by the settings. Inside the pressure tank body there are 2 chambers for water and air, respectively, separated by a membrane. Turning the pump on and off is automatically adjusted as the water chamber of the accumulator is filled to the maximum allowable value. When the system is turned on, water is first of all consumed from the pressure tank, then, as its level decreases, the pump for the main source is automatically turned on.

Grundfos complete pumping stations are also classified according to the principle of operation of the pump, the ejector of which is:

  • built-in - such models carry out the rise of water as a result of rarefaction and work at a depth of up to 40 m, the disadvantages include high level noise and significant cost;
  • remote - downhole and well pumps, operating at a depth of up to 20 m, the design includes 2 pipes, one of which ensures the movement of water in a downward direction, due to which the pressure level and the suction capacity of the second pipe begin to increase.

Advantages of pumping stations

The Grundfos water pressure booster pump station, regardless of type and configuration, has increased resistance to mechanical wear due to the use of high-quality materials in the manufacturing process and modern technologies. The service life of the station under the conditions of timely maintenance reaches 10 years or more.

Professionals also note that the products of this brand:

  • resistant to loads and works in uninterrupted mode;
  • has a low noise level;
  • economical due to low power consumption.

The lineup

The range of Grundfos pumping stations is diverse - among the models presented in the corresponding market segment, it is easy to choose equipment for any budget and for the implementation of any project.

We offer short description popular series of pumping stations produced by this brand, as well as recommendations for choosing the optimal model.

JPA

The JPA series of equipment is designed for pumping clean water from foreign inclusions and abrasive particles. The design is based on the JP self-priming pump, inner surface pressure tank is coated with an anti-corrosion coating. Each model is made in a cast-iron case and has an improved composite material impeller, it is used to attack the pressure in the water supply system, garden irrigation systems with a maximum suction depth of up to 9 m.

The series includes the pumping station Grundfos JP Basic 3PT, GrundfosJPA3-42 PT-H and Grundfos JPA 4-47 PT-H, operating in the temperature range of 0 ... 55 and 0 ... 35 ° C, respectively.

CMB/CMBE

Grundfos cmb is a series of automatic self-priming units, the main components of which are a pump type CM, an automatic control unit PM1 or PM2, as well as an electric motor. The equipment operates at a depth of up to 8 m and is mainly used in the field of water supply for the household sector.

The Grundfos cmbe equipment series, unlike its predecessor series, is also equipped with a built-in one, which, as the water consumption parameters change, transmits a signal to the engine and adjusts its speed.

Most popular models:

  • Grundfos cmbe 3-62 is a compact model with a low noise level, working with a pumped medium in a temperature range of -20 ... +55 ° C.
  • Grundfos cmbe 5-62 has slightly more weight and dimensions than the 3-62 model and provides a nominal head of 44.2 m (3-62 - 39.4 m).

Hydrojet JP

JP is a series of garden pumping equipment and organization of water supply system on suburban area designed for pumping and filling tanks / reservoirs clean water, which does not include abrasive and fibrous inclusions.

All models of the series are equipped with ejectors that can be turned off if necessary, creating a vacuum with HydroVacuum pumps and operating at a depth of up to 8 m. of stainless steel. Horizontal single-stage centrifugal stations of this series are equipped with

Sub series:

  • pump Grundfos JP 5 - self-priming surface unit, providing a maximum head of up to 40 m and capable of operating in a temperature range of 0 ... 55 ° C;
  • Grundfos JP 6 - unlike its predecessor HydrojetJP 5, it provides water lifting to a height of 48 m and has a large external dimension.

Both sub-series are represented by models of different performance, which is also displayed in the marking. For example, the GrundfosHydrojetJP 6-24 model is equipped with a 24 l tank. There is an analogue with the same tank volume in the JP5 sub-series, but the 6-24 model has an increased power of 1400 W and is capable of raising water to a level of 53 m, due to which it is also used in equipping 2-storey cottages.

MQ

Household pumping stations Grundfos MQ 3-45 and 3-35 are used to automatically increase the pressure in the water supply system in a private house or apartment, to complete watering and irrigation systems, to pump clean or rain water.


The units are completely complete, they raise water from a depth of up to 8 m and provide a head of up to 43 m with minimal energy consumption.

Benefits also include low noise levels, dry start protection, automatic reset and restart, a small pressure tank that reduces on/off cycles, and low maintenance requirements. Permissible temperature range of the pumped liquid - 0 ... 35 o C.

Grundfos mq 3-35 and 3-45 pumping stations (video)

VdS

The Grundfos fire extinguishing system cannot be ignored. It is equipped with a single suction pump with a short or long coupling and is connected to an electric or diesel engine. Working wheel stations are made of bronze, and all adjoining components are made of wear-resistant stainless steel. All this is enclosed in a strong and durable cast iron housing. Fire extinguishing systems are used in equipping industrial and production sites, storage facilities, office and business centers.

Characteristics

The key characteristics when choosing a pressure station are pressure and performance. It is they who determine whether the equipment can meet the demand, depending on the number of users and water consumption.


The performance of the pumping station directly depends on the pressure, or pressure level inside the system. So, for using taps, a pressure of 3-4 l / min is sufficient. at a nominal pressure of 2 atmospheres, and for uninterrupted operation, the pressure force should already be 12-13 l / min.

When choosing a model, pay attention to the fact that every 10 m of pipeline length is 1 m of pressure. For example, you need a pump to lift water from a depth of 7 m, and the distance from a well or other source of water directly to the pump is 30 m. In this case, the maximum suction depth of your chosen model should be at least 10 m (7+30/10) .

Stations Grundfos water supply

Grundfos pumping stations- excellent equipment designed for automatic water supply. They are ideal for pressurizing the water supply, and are also used for watering the site, filling or emptying containers.

Pump equipment stamps Grundfos is popular all over the world. The products of a well-known Danish company have proven themselves in work. Water supply stations of this brand are adapted to Russian operating conditions. Buy equipment for favorable price you can in our company.

Settings

The catalog contains various settings grundfos. These are MQ, JP Booster, CMB models. They are suitable for wells and wells up to 8 meters deep. These stations can also be used for lawn watering, as well as containers and reservoirs.

Stations Grundfos high performance and quiet operation. They can be used for a long service life. Water supply stations Grundfos are fully equipped and ready for installation units that will operate in automatic mode.

The technical characteristics and parameters of this equipment depend on the specific model, but each of the stations is of very high quality and can be used in our Russian realities. The choice of a particular installation depends on the purpose of operation, parameters and cost of the equipment. An important factor will be the personal preferences of the owner. country house, cottage or garden plot.

Advantages

What are the benefits Grundfos water stations?

High quality, manufacturability, reliability. Grundfos plants is a quality that has stood the test of time. This equipment is created taking into account the latest technological developments. Stations fully meet the requirements modern market. This is a modern and high-tech product, characterized by high reliability.

Adaptability. Water supply stations supplied to the Russian market are very well suited to the operating conditions in our country. The equipment is adapted to work in harsh climatic conditions.

Practicality. AT Grundfos pumping stations provided automatic protection from overheating and dry running. The units are switched on and off depending on the specific parameters of pressure, water flow and filling.

Low cost. Equipment Grundfos low cost for products of this level.

Buy water supply stations Danish manufacturer you can in our company. We are a partner Grundfos on the Russian market, selling, installing and configuring this equipment on favorable terms for customers.

Like many European companies, Grundfos boasts interesting history her formation. From a small workshop, this monster has turned into an extensive network of factories and representative offices throughout Europe. By the way, in Russia, in the city of Istra, their plant also operates and produces products of excellent quality. But the most important thing is that the manufacturer, when building a plant in some country, offered its population not only standard pumps and pumping stations, but also models that were adapted to the conditions of their operation in that particular country. And although the prices at Grundfos bite, their products are very popular due to their high quality, complete set and trouble-free operation. It should be noted that the Grundfos pumping station is the very first model that appeared in the world as separate view equipment.

Design features

Let's start with the fact that the Grundfos pumping station includes centrifugal pump and hydraulic accumulator. Basically the same as other brands. of this type equipment. But she also has her own distinguishing feature- this is an ejector, which is included in the design of the pump, as an integral part of it. That is, it turns out that this device is located in the pump housing.

The ejector makes it possible to increase the depth of water intake. Without it, the pumping station can pump water from a depth of no more than 10 m, with it this value increases to 50 m. And although many experts are sure that an ejector lowered into a well shaft works better in terms of efficient water intake, Grundfos denies this.

In addition, stations with a built-in ejector are practically not susceptible to sand and other small debris in the water - there is no need for filtration. A constant and uniform pressure will be another advantage of this design. The only drawback is the increased noise level during operation. But considering that pumping stations are located outside the house (caissons) or in utility room, then this disadvantage is insignificant. Therefore, the products of this brand are very popular in the arrangement of great depth.

As for the completeness of the station, Grundfos provides the pump with all necessary elements and nodes. That is, it includes the unit itself, check valve, a strainer and a sleeve that will be lowered into the well, a pressure switch, a pressure gauge and connecting fittings. The absence of one of the elements is not allowed.

The automation unit, which controls the operation of the pumping unit, consists of a pressure gauge and a relay. The first monitors the pressure inside plumbing system, the second turns off or turns on the pump when the water pressure rises or falls, respectively. At the heart of the relay design there are two springs: one large, the other small. The first responds to low pressure in the accumulator, including the pump. The second to high, turning it off.

Grundfos pumping station pressure switch

Principle of operation

The Grundfos pumping station works quite simply.

  • The pump pumps water into the accumulator, which enters the pear-shaped rubber membrane. It expands under the influence of water. But between the membrane and the walls of the metal tank, air is pumped under a pressure of 1.5 atm. It also provides pressure inside the water supply network. When pumping, the air pressure increases to 4.5 atm.
  • The pump turns off, and water from the pressure accumulator begins to flow into water supply network at home. As soon as the pressure inside the water supply drops, the automation turns on the pump, which again pumps water into the membrane.

The principle of operation of the pumping station

The lineup

It should be noted that even the most demanding buyer will find the necessary model of a pumping station for himself, which will effectively provide water to any house with a different number of consumers. The main thing is to correctly calculate the required water flow.

Water stations

One of the very popular models is the Grundfos MQ 3-45 pumping station. Speaking about its technical characteristics, we can say that this unit can provide enough water big house. After all, its productivity is 3 m³ / h. And this despite the fact that it can pump water with a head of 27 m - this is a nominal figure. Maximum - up to 45 m.

But, most surprisingly, the pump motor has a power of 1.0 kW. That is, giving out such a decent power, the device consumes a minimum of electricity.

Grundfos MQ 3-45

Another representative of this model with lower technical characteristics. This is a Grundfos MQ 3-35 pumping station. Its performance is exactly the same as that of the previous model, but the maximum head is 35 m, with a suction depth of 8 m. But it has a lower power consumption of electricity - 0.85 kW. That is, the company makes it possible to choose the unit that will supply water in the required amount, no less and no more, but at the same time you will not have to overpay for the equipment. This is very important in terms of economy.

True, this model has a housing function. That is, the pump, and it is self-priming, after an unexpected emergency shutdown, it will itself try to turn on every 30 minutes. For example, the water level in the well has fallen. After half an hour, the pump will try to pump water. If the level has not risen to the required level, then the unit will turn off again. And it will turn on in half an hour. But after 24 hours, the function will turn off if emergency situation won't fix. After that, the station will have to be turned on manually. This is a kind of protection.

Attention! All models of the "MQ" series are small-sized, which includes a multi-stage self-priming pump.

But the Grundfos Basic 3-50 pumping station in its composition has a more capacious accumulator with a volume of 50 liters. All other characteristics are the same as the previous models. Of course, a capacious tank reduces the number of switching on and off of the pumping device, which increases its service life.

Now we need to consider several models from the Hydrojet series, which includes single stage pump JP brand. It has a fairly wide range, in which there are also small pumping units and powerful. The latter can provide water to large houses or several small ones.

Pump station Grundfos Basic 3-50

So, the first representative is the Grundfos Hydrojet JP 5-24 pumping station. This is the smallest representative of its class, which includes a JP series pump and a 24 liter hydraulic accumulator. With a small electric motor with a power of only 0.75 kW, it can drive up to 3 m³ / h of water through itself, raising it to a height of up to 48 m. The water intake depth is 8 m, it creates pressure up to 6 atm inside the water supply system. With small installation dimensions, these are excellent technical characteristics.

The next more powerful model is the Grundfos Hydrojet JP 6-50 pumping station. Its design has a built-in ejector, and it has additional function pressure increase. For all other indicators, this is still the same pumping station. It has a larger hydraulic tank volume - 50 liters and increased power - up to 4.2 m³ / h. Of course, with such a performance, the pump consumes more electricity - up to 1350 watts.

Sewage pumping stations

In the model line of Grundfos pumping stations there are also sewer installations. With their help, you can pump storm, fecal, drainage, industrial and ground drains. Since the unit itself and the hydraulic accumulator collide with rather aggressive liquids, their design includes parts and assemblies made of high-strength materials.

Indeed, it should be noted that sewerage stations of this type for household plots are practically not applied. They are expensive, and there is no need to use such advanced installations. Instead, you can use the Grundfos JP Basic 3pt pumping station to sewer a country house. With small dimensions, this installation has a fairly high technical characteristics. But it will also look inappropriate in the sewer system. It is easier to install a conventional fecal pump. But you need to know that Grundfos also produces sewer units.

Pump station Grundfos JP Basic 3pt

Installation rules

All the models described above are an insignificant part of what the Danish company offers. But for all units there are certain strict requirements for installation and operation. Namely:

  • Experts recommend installing pumping stations near the source of water intake. The closer the better, so the caisson - the best option installation locations.
  • All pumping stations should operate only at positive temperatures of the ambient air and pumped water. Therefore, they are best installed in caissons, basements or insulated extensions to the house.
  • The appliance itself must be installed on a level and solid foundation. Be sure to put a rubber gasket under it, which will reduce the resonance of the installation.
  • Since domestic power lines cannot guarantee a stable voltage outside the city, it is necessary to without fail connect the pumping station through a voltage stabilizer. In this regard, they are very capricious.

Installation rules

As for the positive operating temperature, it should be noted that the pumping stations installed in the basement or caisson must be connected to the hydraulic structure with pipes or hoses, which must also be insulated. Therefore, the pipeline can be laid below the level of soil freezing or the route will have to be insulated using special thermal insulation materials. Usually today, cylinders (shells) made of foamed polymers are used for this.

Highly important point is to choose the right pipe connection to the station itself. Each model has its own inlet diameter, so the diameter of the pipe must match it. If not possible, then you will have to install an adapter. True, experts do not recommend installing pipes smaller or larger diameter, this will affect the pressure inside the water supply.

Installation location

Model differences

So, when it comes to household pumping stations from Grundfos, it must be said that the manufacturer offers two groups: Basic and Hydrojet. They differ from each other only in the material from which the body of the unit is made. In the first group it is an aluminum alloy, in the second - stainless steel.

By the way, as mentioned above, the models of the Basic group can be used for pumping water with a high concentration of pollution. That is, they can organize the irrigation of green spaces with water intake from open reservoirs or pump out wastewater.

True, there is Basic series and pumping units made of cast iron. For example, Grundfos JP Basic 2 PT. This is the smallest design, weighing only 18 kg. Therefore, it is easy to carry around the site to any place. The mobile version, although small in size, has excellent operational characteristics. Productivity 3 m³ / h, lifting height (head) up to 40 m, suction depth - 8 m. Such installations are usually used in summer time. They are mounted in the spring near a well or well, and in the fall they are dismantled and cleaned in a house or barn. Most importantly, it takes a maximum of half an hour to connect or dismantle.

Filling the station with water

Household hydraulic pumping stations for the home

Household autonomous stations water supply companies Grundfos (grundfos) for houses, summer cottages, farms have acquired strong demand along with the establishment of a competent economic policy in many states.

Today, the maximum amount of land is used for domestic agricultural production. Most countries in the world allocate wide areas to farmland. In these conditions Grundfoss pumping station first, second rise becomes a device that is unable to lose relevance.

Production line Grundfos pumping stations provides ample opportunities for high-quality irrigation of fields, orchards and orchards. The pneumatic-hydraulic pumping station for automatic water supply for summer cottages, the price of which is attractive to the consumer, is successfully used to increase the level of domestic comfort in private homes.

Design features

Booster water pumping stations are practical devices, all parts of which work harmoniously in unified system. Author's development Grundfos (grundfos)- specially treated steel for pumping stations MQ Covers and securely protects corners and work items different models devices. All devices are ready for installation and are fully adapted not only to various containers, but also to wells, wells, reservoirs.

As a rule, the country of origin of such a device as a pumping station MQ and JPB to increase pressure - Germany, but devices are also manufactured in most EU countries using Grundfos technology. Each branch of this corporation studies the needs of its region - based on these data, a plan is made for the release of the next model range.

The scientific approach pays off: in every country selected for cooperation, Grundfos is always head and shoulders above other manufacturers of devices such as self-priming water pumps and pumping stations.

The catalog of this brand contains devices in which each part is subject to a smooth decrease and increase in pressure. The apparatus consists of several main parts. First of all, these are pumps for fast water supply from depth.

The latter can be applied independently. In cases where the liquid lies at a depth of less than eight meters, experts advise using JP centrifugal self-priming pumps (for water, technical or drinking liquids).

More about the process of water lifting

Centrifugal self-priming pumps JP and JP Booster pumping stations (based on JP pumps equipped with a hydraulic tank of 24 and 60 liters) - the easiest way to raise water. They fit perfectly into the water supply system of a private house. All that is needed to use such a device is the installation of a storage tank (it is filled with water for drinking water on the farm or for hygienic purposes).

With the help of this device, water is pumped out of small volume tanks. A sensor is installed in the storage tank - it monitors the liquid level and turns off the water-lifting device in a timely manner. Another task of such a sensor is to control the drop in the water level in the tank. If there is not enough liquid, the pump instantly turns on. It is convenient that the entire cycle of work occurs automatically and does not require regulation.

Distinguish ejector pumps and injectors. Pumping stations of the ejector type are advised to be located in technical and non-residential premises. The constant discharge of the ejector in these devices is responsible for the absorption of moisture. The Grundfos pumping station with an ejector has proven itself all over the world as a watering mechanism for gardens and orchards - that is why RussNasos offers it to the Russian consumer today.

Injection pumps are distinguished by an increased allowable depth of water - it can reach 25 meters. These units are also suitable for small wells. Feature of these Grundfos devices - the autonomy of their components. The engine of injection-type devices is located on solid ground, and the air-discharging mechanism is immersed in water.

Using pumps with diaphragm pressure tanks

German private water companies pumping stations can also be used in combination with membrane pressure tanks ( JP 5-24, JPB 5-60, JP 6-24 and JPB 6-60). Installing the pump on a membrane tank and equipping its relay is a development of Danish engineers, which has received the definition of a "complete mobile pumping station".

A silent compact pumping station for an apartment, house or cottage uses a Grundfos membrane tank of a special design. It is a container made of metal, divided in two by a membrane. Both parts of the container are sealed. Air enters the first under pressure, water is pumped into the second.

As soon as the relay detects that the maximum pressure has been reached, the water pumping stations are switched off and the liquid in the membrane tank can be used. The hydraulic pumping stations are restarted by reaching the lower pressure limit, also reflected on the relay.

Main advantages

Buying a domestic water supply pumping station for a summer residence or a private house of a Russian consumer is motivated by numerous advantages. First of all, technicians and users evaluated the stable performance of the pressure generated by these devices. Grundfos automatic pumping stations, (without hydraulic tank) and models , and (with a hydraulic tank) are able to maintain this indicator at a level that is optimal for the operation of any water heater, adjusting to its needs.

These devices are also optimal according to other criteria. So, they have a reduced number of starts and stops of the pump - with the help of this technology, the engineers of the Danish corporation have achieved the durability of the devices.

Another plus of the units of this JP brand is the possibility of volumetric membrane tank hold a large supply of water. This function provides a constant water resource that can be used during a power outage.

Active application

Grundfos water pumping stations for water supply of houses (dachas), the price of which is invariably low, are supplied to dozens of countries in Europe and the West: in the technical world, quality is valued for a low cost.

The description of the pumping station includes classic components - the pump itself, the storage tank and the intelligent device control system. In addition to the sensor, the technical characteristics of pumping stations may contain a control unit that is also capable of automatically turning the pump on or off.

Thanks to its trouble-free operation and long service life, the pumping station, 2 (II) lifts and pressure boosters have today equipped many suburban areas and villages, in which our country is rich. The traditional field of application of devices of this brand remains the irrigation of fields and gardens of the different area from minimal to extensive.

Today, Danish technology is actively used in the Russian capital. The products of this manufacturer were identified as the best autonomous pumping stations for water supply in Moscow.

Reliability and a constant price from Grundfos

An online store created as part of our project has collected on its pages classic Danish automated water pumping stations for the home. Prices (wholesale and retail) are low here thanks to direct cooperation with Grundfos.

Today, our customers are large companies and individuals who prefer to purchase high-pressure Grundfos self-priming pumping stations, home pumping mini-pumping stations and automation for them here. Devices sold by RussNasos are widely used in private country houses and cottages, in baths, at dachas.

Customers with whom we have established long-term partnerships know that you can always buy inexpensive household automatic submersible pumping stations for water from wells here. The price of each item of Grundfos products is kept within its limits.

So, due to the absence of "surprises" in the form of an unexpected increase in the cost of installations, each of our clients can accurately plan an estimate for the purchase of a pumping station.

Among the devices offered by our company are cheap electric pumping stations for domestic water supply, which are already actively used in Russia.

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