Pumping station for a private house grundfos device. Pumping stations "Grundfos": an overview of the model range and its features

Water is supplied to the dacha, to the bathhouse, to the house, to the plot - from a well or a well - with the help of a pump. But to ensure the system's operability, other components are also needed - sensors, controllers, storage tank etc. All this can be selected separately, or you can purchase a pumping station.

A pumping station is all equipment for providing a house with water, assembled. Its plus is that it can maintain a constant pressure in the system regardless of the flow rate.

The equipment consists of a pump (type - any suitable for your conditions), a tank for storing a supply of water and control sensors. The comfort level of the system is largely determined by the type of tank used. It happens:

with storage tanks;
with hydraulic accumulators.

The storage tank is a conventional container in which the water level is controlled by a float. The level rises, the pump turns off, decreases - turns on. But such a system provides very low pressure. It depends on the height difference that you have managed to provide. Low pressure heaters and other household appliances it is impossible to use. However, if you set it high enough, you can create a drop in height enough to take a shower. The second unpleasant detail of using such a tank is that if the float mechanism fails, there is a real threat to flood the house. This problem is solved - a branch pipe is installed, but the system is still not reliable enough.

More modern modifications of pumping stations use hydraulic accumulators. They allow you to create and maintain a stable pressure. This system also allows less frequent pumping up, which extends the life of the equipment.

Hydraulic accumulators in pumping stations are membrane-type tanks. In it, the container is divided into two sectors by an elastic membrane. One part contains gas (initially it is under some pressure), the second is injected with water. There is also a pressure sensor. It sets the upper and lower pressure limits.

When water is pumped, the membrane in the tank expands, compressing the gas and creating even more pressure. When the upper threshold set on the sensor is reached, the pump is turned off. In this case, a certain pressure is also created in the water tank. If a tap is open somewhere, water is supplied with a good pressure to the distribution point. The volume of water decreases, the pressure on the membrane decreases. When the lower threshold value is reached, the relay is activated, the pump turns on, increasing it again.

This system allows you to maintain a stable head regardless of how many taps are open. Therefore, when installing equipment with a membrane water tank, any type can be used, as well as automatic washing machines and another household appliances setting requirements for water pressure.

How to install

Most pumps are quite noisy, therefore it is advisable to install stations in a non-residential area with good sound insulation. If it comes on the supply of water for summer cottages, then the equipment can be placed near the well, only by providing protection from precipitation and the sun (they usually make a small pit, which is closed with a lid). If water is needed for the house or for the bath, which they are going to come to in winter, you will have to take care of a separate room (or an insulated pit, but such that the pump does not freeze).

When choosing a model of a pumping station for your home, pay attention to the metal from which the pump body is made. Steel usually makes a lot of noise, but cast-iron housings dampen almost all sounds. They are less of a hassle, although they cost more. But the best option is a stainless steel case. It is the least hassle with it, although it is more noisy than cast iron.

The whole system is assembled in the following way: into a well or a pipe is lowered. Water is supplied to the input of the pumping station, from there it enters the membrane tank, and then it is diluted throughout the house and the site.

How to choose

Normal water supply at home, summer cottage or bath is possible only when correct selection all parameters. And you need to choose:

First of all, you need to find out if water is entering the well or well quickly enough. If the debit of the well or well is less than 1.7 m 3 / hour (the amount of incoming water per hour), the required pressure cannot be provided. The equipment is designed for higher performance.

Selection of pump type

One of the most difficult and crucial stages is choosing a pump. It must create enough pressure to raise the water to the required height. At the same time, its productivity should meet the needs for water, but at the same time, it should not exceed the capacity of the well or well.

Self-priming vortex and centrifugal pumps are used in pumping stations. Both those and others can be in monoblock or console version. But such pumps can lift water from a relatively shallow depth:

a pump with a built-in injector will provide delivery from a depth of 8-9 meters;
normally suction from a depth of 7-8 meters.

If you need to supply water from a greater depth, you will need to use a submersible pump. They buy it, and on its basis they assemble a pumping station, the second way out is to supply a unit with a remote injector.

The pump is one of the main components of the system

When using a remote injector, it will be possible to raise water from a depth of about 42 meters, but the efficiency of the system is low, and the cost of electricity is much higher - essentially two pumps are operating simultaneously. But sometimes this is the best way out.

System with submersible pump with a great depth of the well, it will be the best option. It is efficient and "pulls" a little energy. The only caveat: submersible equipment is quite sensitive to the purity of the water. To prevent sand silt and other foreign particles from getting inside, a special filter mesh is installed on the pump inlet pipe.

Power selection

Performance is selected based on the maximum water consumption. Estimate how many taps can be opened at the same time, calculate the volume of water that leaves through them. This will be the required pump power. In general, it is better to take this parameter with a margin, since working at the limit sharply reduces the "life" of the equipment.

On average, for a family of 3-4 people, the flow rate is 2-4 m 3 / hour, and the equipment is selected accordingly.

Selecting the volume of the accumulator

In general, it is advisable to install as large a tank as possible. This will ensure that the pump starts up more rarely. After all, the less often it turns on, the longer it will last: starting currents on the motor are destructive. On the other hand, a large accumulator needs to be installed somewhere, and it also costs decent money. But when the power supply is cut off, you will have a supply of water in the system equal to the volume of your tank.

Just be careful. There are membrane expansion tanks for gas boilers. They are much cheaper, but they make the water undrinkable. And they are not designed to work with liquid, so they will soon fail.

Having picked up all these components, you can proceed with the selection of a pumping station that will meet your requirements.

Pumping station connection

As mentioned above, the system is simple: a pipe is immersed in a well or a well (more often polypropylene is 32 mm, but sometimes it is 40 mm - it depends on the pump performance). It is fed to the station entrance, and from the exit it is fed to the water supply comb.

But things are far from simple. We need to ensure the maintainability of the system:

Make everything so that you can overlap unnecessary branches.
Provide for the possibility of draining water for the winter. Since the system necessarily contains check valve, it is required to make the bend slightly higher.
Install shut-off valves at the inlet and outlet of the pumping station. By closing them, it will be possible to remove the equipment for maintenance without any particular difficulties.

Since most of the components of the system are motionless, the connection of all elements occurs with the help of American women with union nuts... Otherwise, it is very, very difficult to assemble, and then disassemble, if necessary.

One of the pumping station connection schemes is shown in the photo. The purpose of most of the elements is clear, with the exception of the "cut-off 1" and "cut-off 2" valves. They are used when filling the system during the first start-up. Here's how the process works:

The "cutoff 2" cock and the drain cock are open, the "cutoff 1" is closed. With this position of the valves, pouring water into the corresponding inlet, we fill lower part systems. In this case, part of the air comes out through the drain valve.
Now we close the "cutoff 2" and the drain valve and turn on the pump for 5-7 seconds. After 5 seconds, open "cutoff 1". In this way, it is created in the system high blood pressure, which squeezes air out of the system (a couple of taps should be open).
Second start-up cycle: "cutoff 2" valve is open, "cutoff 1" and drain valve are closed. We turn on the pump again for a short time.
After 5-7 seconds of pump operation, open the "cut-off 1" tap. The system should start up. If there is still a lot of air left, the second start cycle can be repeated.

In working condition "cutoff 2" and the drain valve is closed, "cutoff 1" is open.

In this scheme, more attention was paid to purification - there is a fine filter at the entrance to the house

The second connection diagram of the pumping station needs almost no comments. A funnel is installed here as a filling system, and the start-up begins after the water fills the entire container inside the pump. It may take several starts to squeeze all the air out of the system.

This system is interesting with a well-thought-out purification system: a water filter is installed on the branch that goes into the house. As a result, we have clean water in the tap without impurities.

Popular manufacturers and reviews on the work of pumping stations

As usual, in addition to the difficulties with the selection of equipment parameters, there are difficulties with the choice of the brand. Sellers do not always advise what is best, often trying to sell what is more expensive. Often the only source of more or less reliable information is user reviews.

Pumping stations

These units have a cast iron body, stable feet, and motor protection against overheating. They work automatically, do not require setting of parameters. Three series are available with different pumps for different depths:

RSM series - from a depth of 8 meters will lift up to 100 liters / min.
ARM series - pumps with a submersible injector for wells with a depth of more than 30 meters. Controls the operation of the pressure switch.
Corrosion-resistant CAM series has a bronze impeller, can lift water from a depth of up to 30 meters.

When choosing any product, each buyer pays attention to the manufacturer, under whose brand it is produced. You should always be guided by this factor - after all, some brands have earned trust and recognition for high quality products, while others have negative reviews.

Among the brands under which pumping stations are produced, Grundfos deserves attention.

Product features

Grundfos belongs to the world leaders in the production of pumping equipment... The company was founded in 1945 in Denmark, and in 1947 its products were named Grundfoss (in Danish - "spring").

Grundfos pumps appeared on the Russian market in the sixties of the last century. In 1992, a representative office of the concern was opened in Moscow, subsidiary Grundfos LLC began work in 1998, so now you can buy a Russian-made Grundfos pumping station.

Grundfos pumping stations are manufactured not only in Denmark, but also at the company's plant in Istra, Moscow region.

Complete pumping Grundfos stations produced on modern equipment of well-known European companies, have a wide range of products, including:

Grundfos water supply pumping stations - equipment used to create water supply systems in everyday life and at work;
Fire extinguishing pumping stations Grundfos - equipment used to create fire extinguishing systems. The Grundfos fire pumping station is characterized by increased performance and pressure.
Pumping stations for Grundfos summer cottages are compact and lightweight pumps with moderate power and performance;
Boost pumping station Grundfos pressure- equipment used mainly in industry. The Grundfos booster pumping station can also be used by public utilities - at distribution centers for water supply.

The advantages can be safely attributed to compactness and noiselessness. In addition, the technical characteristics of Grundfos pumping stations can be selected for any purpose - due to the fact that this manufacturer has a lot of models.

Another clear "plus" is the simple and quick installation of the equipment. A completely inexperienced person can cope with the installation of such a pump (household, of course).

Separately, the high reliability of the pumps is noted - the equipment of this brand, with proper handling and compliance with the requirements, can serve for more than a dozen years.

More about models and their characteristics

Now let's take a closer look at the proposed products.

The Grundfos JP Basic surface pumping station is one of the most popular and best selling options. The station is intended for pure water and has the following characteristics:

immersion depth - 8 m;
productivity - 5 m 3 / hour;
power - 1400 W;
horizontal installation;
device weight - 20.4 kg.

This pumping station operates almost silently. average cost in retail sales today - 25,900 rubles. It is used wherever it is required to provide water supply: in residential cottages, country houses, in industry.

The Grundfos fire pumping station is another benchmark, but in a different category. Grundfos Hydro MX fire extinguishing stations are designed for water and foam fire extinguishing installations.

The concern produces more than six dozen models, differing in power (from 1.1 to 55 kW) and starting system. Liquid consumption - up to 120 m 3 / hour; head - up to 145 m. The retail price depends on the model and starts at 882,574 rubles.

The Grundfos Hydro booster pumping station is a relatively new category of equipment. Booster pumping stations are used to increase the pressure of water when it is supplied to industrial facilities, waterworks and residential buildings.

The wide range of applications has led to the availability of many models of such stations. Let's take an example of a Grundfos Hydro 2000 booster set.

This is a small-sized automatic pumping station Grundfos, designed to maintain and increase the water pressure in the water supply systems of residential buildings and industrial facilities. Equipped with centrifugal pumps (pump).

Experts note the ease of installation and use of this product. Specifications:

maximum productivity - 600 m 3 / hour;
maximum head - 144 m;
water temperature - up to + 70 °;
Max. operating pressure- 16 bar.

The price of the Grundfos pumping station, depending on the model and the pump used, starts from 173,000 rubles.

The Grundfos submersible pumping station is one of the most diverse categories. Grundfos submersible borehole pumps can be used to pump clean and sea water, for irrigation and drainage. Common models of such pumps (BMP, JP, MQ series) have the following basic parameters:

head - from 44 to 1600 m;
consumption - from 2 to 10 m 3 / hour
liquid temperature - from + 1 ° to + 55 °.

The Grundfos submersible pumping station is one of the most reliable options, but the cost of the devices of this brand is slightly higher than the average, which slightly reduces its popularity.

You can buy a Grundfos pumping station of this type from dealers at a price of 18,000 rubles. (depending on the model).

Reviews of the Grundfos pumping stations should also be taken into account - after all, only positive sides... But the opinion of buyers is more useful, because from it you can find out how the device "behaves" directly in operation.

Reviews about the Grundfos pumping station can, for example, be heard from the owners of houses and summer cottages, and they are overwhelmingly positive.

Artem P., 48 years old, Kursk:

Grundfos is in the country - I spend everything there warm time of the year. I use it both in the house and for watering the garden - it always copes, although I took it with a margin. The only thing I didn't like was the price: models of about the same characteristics cost almost one and a half times less.

Egor, 39 years old, Murmansk:

I work in a company that produces household chemicals. After a recent renovation, most of the pumps were replaced by Grundfos - before that there were some old ones, working by some miracle. Now everything is fine, no interruptions, no sudden stops.

Putting into operation

In view of the fact that the installation of an installation of increased power and a fire extinguishing station requires highly specific knowledge and equipment, we will consider connecting household models.

The stages of work are approximately as follows:

The station is being installed on a level place, protected from splashing water. Ideally, the room should be dry and the temperature maintained between + 5º and + 20º.
The hoses (pipes) are connected to the suction port of the pump. The end of the hoses (pipes) should always be immersed in water, ideally at least 20-30 cm.It is not recommended to lower it to the very bottom if you are not sure about the cleanliness of the well - because sediment accumulates there, which can damage pump or impair its performance.
The pump discharge line is connected. The connection point should be carefully checked - poor installation may cause rupture during operation. As a result, water will be pumped directly into the room.
The power line is connected.
The pump is being filled (for this there is a special hole on the body.
After the pump is connected, you must once again make sure that all lines are tightly connected and that the end of the hoses (pipes) is lowered into the water. The pump is then turned on.

The device should begin to gain pressure, and upon reaching the required level, stop operation.

Equipment overview (video)

Possible malfunctions

Malfunctions of the Grundfos pumping station depend on its type and area of application. We list common problems household pumps:

The pump does not start. Check the mains voltage. Check integrity power cable... Check the condition of the capacitors.
After switching on, the pump does not work (rotates, but water does not flow). Check if the water supply valve is open. Check the water level - the pump may simply have nothing to pump.
Turns off during operation... Check the pressure on the pressure gauge at the time of switching off and on - perhaps the problem lies in the automation. Check the water temperature according to the instructions. Check the mains voltage.
Turns off and on are becoming frequent... Check the pressure in the pressure vessel. Check the integrity of the water supply - perhaps there is a water leak somewhere, and the pressure is lost even with the taps closed.

If these measures do not help, you should contact the manufacturer (supplier) of the product. In the event of a serious malfunction, the repair of the Grundfos pumping station must be carried out by a specialist.

You will have to pay for the services of a master: diagnostics will cost at least 500 rubles. Another 500-1000 - minor repairs associated with replacing not too much important details that can be done quickly.

It is possible to avoid malfunction of the Grundfos pumping station by taking into account and observing the rules for operating the equipment. Instructions for the Grundfos pumping station are available for each model, and without fail it contains information on use.

Yes, the products of the concern are reliable and not too demanding, but by operating the pump according to the rules, you significantly extend its service life.

Today, such complex systems as pumping stations are used everywhere and replace conventional pumps due to their ability to automatically provide uninterrupted water supply. Installation of a pumping station is a simple, convenient, reliable and cost-effective arrangement of a water supply system.

The best-selling segment of the water supply market is the pumping stations of the Danish company Grundfos.

1 Why are Grundfos pumping units one of the best?

For the water supply system today, the buyer is offered a wide selection of pumping equipment from various domestic and world manufacturers. Among them, the leading positions are held by trademark Grundfos, which manufactures and manufactures over a dozen different models of pumping units.

Pumping station (NS) is complex system, consisting of surface pump, a sealed storage tank, divided into two compartments by a membrane (accumulator), connected to the pump with a flexible hose, a pressure switch, a control unit.

The pump draws water from an open source and supplies it to the pressure accumulator. When the pump is turned off, the water supply is carried out at the expense of the reserves accumulated by the hydraulic accumulator. After the pressure in it drops to a predetermined level, the relay starts the pump. Then the cycle repeats.

Also accessories are: engine, pressure gauge, hose high pressure, connecting link - control unit, connecting elements. Some models are used as injection units in order to increase the fluid pressure in the system. A stable pressure of about 1.5 atm, which creates a good pressure in water taps and on the upper floors, is received by the consumer with the installation of a Grundfos pumping station.

The role of the pumping unit is to provide the consumer with a constant supply of water to the intake points and maintain the proper pressure in autonomous water supply... Due to the maintenance of not a submersible, but a surface pump, the device allows servicing wells with a small diameter, for example, a needle well, for the arrangement of which standard units are not suitable. These systems work, as a rule, with a depth of 8 m. The devices, which were equipped with an ejector, pump water from a depth of up to 30 m.

Technical characteristics such as fence height, power, volume storage capacity and performance are the strengths of Grundfos products. The power, a fundamental indicator, of pumping units ranges from 600 to 1500 watts. Dry running control, built into some models of the brand, provides for shutting off the pump when there is no water in the supply system, protecting the engine from overheating. This function also stops the operation of the HC in the case when the unit is operating at high speeds, thereby contributing to its long-term use.

Pumping stations are equipped with automatic system control, which is an additional convenience for permanent operation in a private house. It turns on the device if the accumulator is empty, and turns off when the tank is full. Grundfos units are designed to be present in liquid various contaminants and problems with the power grid.

1.1 Benefits and areas of application

Automated equipment is used in the following areas and areas:

in industrial buildings;
in hospitals;
in farms for the purpose of irrigation and irrigation of garden crops, green spaces;
in fire fighting. This is the aggregate engineering communications from working and standby centrifugal pumps, manifolds, control and shut-off valves, automation and control devices, control cabinet;
in areas of flooded lowland to remove water;
in the sewerage system for raising wastewater to an elevation;
at oil fields, in the oil and gas production industry, special booster pump stations are used - booster pumping stations;

The most widespread NS are in the water supply systems of cottages, country houses, plots.

Advantages:

undemanding in certain care and constant supervision;
structural strength due to high-quality and strong material for the performance of all hydraulic equipment units;
energy efficiency;
noiselessness (samples with an ejector);
good lifting height and head;
high volumetric feed;
operational safety;
ease of assembly and disassembly;
low operating and maintenance costs;
long service life;
mobility and reliability;
anti-corrosion coating and others.

2 Review of popular models

The popularity of Grundfos pumping stations is ensured by a reasonable price and high quality. They have earned a good reputation, tested with success in difficult operational and climatic conditions. The main products of the company are the HC series Hydrojet and Basic. The equipment of the two lines coincides in many respects - the design solution and the principle of operation, the difference lies in the material that was used in the development of the unit body. Hydrojet series pumps are available in stainless steel, Basic series - Aluminium alloy.

The systems of the Grundfos JP Basic series are easy to use, their operation does not require constant monitoring. The pressure tank and the pressure switch contribute to the rational operation of the hydraulic structure. When turned on, the container is filled, with subsequent use, the liquid enters the tank as it is empty, thus, the device turns on and off as needed, contributing to the economy mode, preventing accelerated wear.

In addition to providing water, the models of this line perform tasks of pumping out wastewater and organizing irrigation. They supply water to a height of 7-8 m at a speed of 3 cubic meters and are designed to operate at positive temperatures.

The Grundfos JP Basic 3PT pumping station has a large capacity with a maximum capacity of 3.7 m3 / h. The head is 44 m and is achieved with a hydraulic pressure of 7.5 bar and up to 3 bar at the inlet. Refers to mobile and lightweight equipment, total weight is equal to 17 kg. The noise level does not exceed 55 dB. A 20 liter tank allows you to independently adjust the working rhythm.

Grundfos Hydrojet JP is a reliable and robust series with internal and external protection from corrosion. Automatic on / off switch allows consumers to save energy consumption. In conditions of unstable water supply, Hydrojet products are protected from overloads. Booster pump station Hydrojet JP 5 24 l - a model designed to supply water to living quarters, but most often to centralized water supply used as a pressure boosting station.

With a tank with a volume of 24 liters, an automatic regulation of the pump is offered, which automatically starts up to reduce the pressure level in the accumulator. The unit operates at 750 W, raising the water to a height of 43 m. The Grundfos JP 5 pump delivers 35 l / min.

The Grundfos Hydrojet JP 6 24 has an increased output of 1400 W. The lifting height reaches 53 m. This allows the NS to be operated in two-storey buildings. The device is easily portable as the tank is large enough to hold 24 liters of liquid. A fully equipped pumping station is ready for use, it is enough to connect it to the system, the work process is carried out automatically.

Pumping station installing Grundfos The CMBE is equipped with a frequency converter, due to which the pressure is constantly maintained at the points of the liquid intake, regardless of the number of consumers. The pressure sensor transmits a signal to the frequency converter when the demand for water consumption changes, in turn, the converter corrects the rotation of the impellers. The compact design has a 2-liter diaphragm tank, a 5-position union with a check valve, and a pressure gauge.

CMBE is characterized by ease of installation, low energy consumption, and dry-running protection. Its action is performed with low level noise. It is used in the field of domestic water supply, commercial buildings. The Grundfos CMBE 5-62 model, belonging to this series, gives a head of 44.2 m at a nominal flow rate of 5.6 m3 / h. Pressure - 10 bar. Grundfos CMBE 3-62 preceded the aforementioned pumping station and is in many ways similar to its "adept". Its flow rate is 3.7 cubic meters / h, the head is 39.4 m, the storage tank holds 2 liters.

Also the supplied pumping station with protection against running out of water is the Grundfos MQ 3-45. In addition, there is protection against overheating and frequent switching on.

The installation supplies water from mine wells, wells and reservoirs from a depth of 9 m, can be used as a device with which the water pressure will increase. The head is 45 m, the volumetric flow is 4.4 cubic meters / h. Power consumption is only 1kW. NS is the quietest among analogs. Monoblock design.

2.1 How do the grundfos mq 3-35 and 3-45 pumping stations work? (video)

2.2 Other stations

Other hydraulic equipment of the Danes is also in demand. For example, on the basis of centrifugal pumps of the CM series, professional Grundfos CMB water pressure booster systems with a 24 liter tank are offered. Grundfos CMB has demonstrated reliability with self-priming stainless steel pumps. They are protected against cycling and dry running.

The Grundfos fire extinguishing station includes the Hydro MX 1/1 CR10-3 with 1 main and 1 standby units. Serves both in sprinkler and deluge modes. The Grundfos complete pumping station is characterized by an automatic transition to a backup power supply line, remote control of electric valves, a 25-liter membrane tank. The outlet pressure is 16 bar.

Among the popular devices, it is worth highlighting the pumping stations Grundfos MQ 45, Grundfos JPA 4-47 PT H, Grundfos JPA 3-42 PT H.

The Grundfos pumping station is a product of the company of the same name from Germany. The authority of the manufacturer is high, the demand for products is 50% of the global demand. With a consistently high quality of products, the company opens subsidiaries. Their products are adapted to the climatic characteristics of the region. In Russia, the branch operates in Istra, the quality of Grundfos is under the control of specialists from Germany. At high reliability, the equipment is being sold at an affordable price.

Model range of pumping stations of the German manufacturer

Pumping stations are used in domestic and industrial water systems:

Firefighting pumping stations are distinguished by high productivity and high pressure.
Grundfos domestic pumping stations are used in private homes. They are compact and quiet.
Booster pumping stations are used in municipal waterways and in industry. They are called stations of the second ascent.

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

Characteristics of Grundfos products

Most demand for equipment renowned manufacturer in the world agriculture... Here they are required for irrigation of land, to increase the pressure in systems located far from water supply sources. The user can select equipment for irrigation or domestic water supply.

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

JP pump series

The JP series represents the centrifugal self-priming pumps, which are equipped with the Grundfos JP Booster pumping stations. Complete with the pump there is a hydraulic tank with a capacity of 24-60 liters, depending on the capacity. 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 the grundfos JP Basic 3pt pumping stations. The self-priming submersible ejector pump has the best ratio price-quality of all domestic pumps of this company. High performance, 3.6 cc m / hour, head 47 m of water. Art. and a membrane accumulator characterize the demand for equipment. During operation, the pump delivers water saturated with air, without reducing performance. Most often, the pump is used in private backyards.

The Grundfos Hydrojet JP series is extremely robust. The anti-corrosion coating is made from the outside and from the inside. Reliable automation guides the process in economy mode... With a continuous flow of water, the pump is completely turned off.

The pumps operate at a pressure of 5 or 6 atmospheres in the system. The station is equipped with membrane-type accumulators of various capacities. The grundfos hydroijet jp5 residential pumping station is equipped with a 24 l tank. But the system, in which a 60 liter hydroaccumulator is installed, keeps the parameters more evenly. 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 accumulator tank is separated by a diaphragm partition. In one part of it there is water, in the other air is supplied under pressure. 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 pump series works with a diaphragm storage tank. The system is pressurized up to 4.5 bar or 45 mWg. Art. Designed for the organization of water supply for private houses. The device can be used as a booster. The productivity of the apparatus is 3 cubic meters / hour. The system has self-priming from a depth of up to 8 meters. Pump weight 13 kg. The pumping station grundfos 3-35, 35 meters of water column, 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 pumping stations "Grundfos" used in industry

The fire extinguishing station is represented by pressurized water and foam systems. The Grundfos Hydro MX pump type has more than 60 models. Equipment can be selected for different systems fire extinguishing:

productivity - 1.1- 55 kW, with an automatic starting system;
productivity - up to 120 cubic meters / hour;
head - 145 m.

Grundfos pumping stations, capable of delivering foam, are the main tool in fire extinguishing installations. Such systems are expensive, from 882 thousand rubles.

Booster stations from Grundfos Hydro represent a new type of equipment. The stations are used to raise the pressure in the water conduit system. V utilities pumping stations Grundfos Hydro 2000 are in demand. automatic mode, turning on when the pressure in the system decreases. The compact unit has technical characteristics:

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

The pump can be installed in a 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.

Like many European companies, Grundfos boasts interesting story its 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 excellent quality products. But the most important thing is that the manufacturer, building a plant in any 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 of "Grundfos" bite, their products are very popular due to 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 species equipment.

Design features

To begin with, the Grundfos pumping station includes a centrifugal pump and a hydraulic accumulator. In principle, like other brands of this type of equipment. But it also has its own distinctive feature - it 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 the 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 the ejector lowered into the well shaft works better in terms of effective water intake, the Grundfos company refutes this.

In addition, stations with a built-in ejector are practically insensitive to sand and other small debris in the water - there is no need for filtration. A constant and uniform head will be another advantage of this design. The only drawback is the increased noise level during operation. But given that the pumping stations are located outside the house (caissons) or in a utility room, such a disadvantage is insignificant. Therefore, the products of this brand are very popular when arranging great depths.

As for the completeness of the station, the Grundfos company provides the pump with all essential elements and knots. That is, it includes the unit itself, a check valve, a mesh filter and a hose that will fall into the well, a pressure switch, a pressure gauge and connecting fittings... The absence of one of the elements is unacceptable.

The automation unit, with the help of which the operation of the pumping unit is controlled, consists of a pressure gauge and a relay. The first monitors the pressure inside the water supply system, the second turns off or turns on the pump when the water pressure rises or falls, respectively. The design of the relay is based on two springs: one large, the other small. The first reacts to low pressure in the accumulator, turning on the pump. The second is high, turning it off.

Pressure switch for pumping station Grundfos

Principle of operation

Pumping station Grundfos 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 the water supply network of the house. As soon as the pressure inside the water supply system 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 discerning buyer will find for himself required model pumping station, which will effectively provide water to any house with different amounts consumers. The main thing is to correctly calculate the required water consumption.

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 a sufficiently large house with water. After all, its productivity is 3 m³ / hour. And this despite the fact that it can pump water with a head of 27 m - this is a nominal figure. The maximum is up to 45 m.

But, what is most surprising, the pump electric 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 smaller 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 0.85 kW. That is, the company makes it possible to choose the unit that will supply water to the required amount, no less and no more, but you will not have to overpay for equipment. This is very important in light of the savings.

True, this model has a quartering function. That is, the pump, and it is self-priming, after an unexpected emergency shutdown, will itself try to turn on every 30 minutes. For example, the water level in the well has dropped. 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 shut down again. And it will turn on in half an hour. But after 24 hours, the function will turn off if the emergency is not corrected. 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 multistage self-priming pump.

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

Now it is necessary to consider several models from the "Hydrojet" series, which includes a single-stage "JP" pump. It has a fairly wide range, in which there are both small pumping units and powerful ones. The latter can provide water big houses or several small ones.

Pumping station Grundfos Basic 3-50

So, the first representative is the Grundfos Hydrojet JP 5-24 pumping station. It 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 48 m. The water intake depth is 8 m, and creates a pressure of up to 6 atm inside the water supply system. With the small dimensions of the installation, 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 an additional function of increasing the pressure. For all other indicators, this is still the same pumping station. It has a larger hydraulic tank volume - 50 liters and increased capacity - up to 4.2 m³ / hour. Of course, with such a performance, the pump also consumes more electricity - up to 1350 W.

Sewage pumping stations

V model line Grundfos pumping stations also have sewerage systems. With their help, you can pump storm, fecal, drainage, industrial and groundwater. Since the unit itself and the accumulator are faced with rather aggressive liquids, their design includes parts and assemblies made of high-strength materials.

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

Pumping station Grundfos JP Basic 3pt

Installation rules

All of the above models are a tiny part of what the Danish company offers. But for all units there are certain stringent requirements for installation and operation. Namely:

Experts recommend installing pumping stations near the water intake source. The closer the better, so the caisson - best option installation site.
All pumping stations should operate only at positive ambient temperatures and pumped water. Therefore, it is best to install them in caissons, basements or insulated annexes 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 outside the city, domestic power lines cannot guarantee a stable voltage, it is imperative to 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 freezing level of the soil, 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.

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

Place of installation

Differences between models

So, when the conversation turns to domestic pumping stations from the Grundfos company, 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 unit body is made. In the first group it is an aluminum alloy, in the second it is stainless steel.

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

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

Filling the station with water