Stations of water supply Grundfos.

Pumping stations Grundfos.- Excellent equipment intended for automatic water supply. They are ideal for increasing pressure in the plumbing, as well as used for watering the site, filling or devastating containers.

Pump equipment brands Grundfos.enjoy popular worldwide. Products of the famous Danish company well proven itself in work. Water supply stations This brand is adapted for Russian operating conditions. Purchase equipment in favorable price You can in our company.

Installations

In the catalog are presented various installations Grundfos.This is MQ models, JP Booster, CMB. They are suitable for wells and wells in a depth of 8 meters. These stations can also be used to irrigation of lawn, as well as for tanks and tanks.

Stations Grundfos.different with high performance and silent work. They can be used throughout the long service life. Water supply stations Grundfos. They are fully equipped and finished installation installations that will work automatically.

Specifications and parameters of this equipment depends on the specific model, but each of the stations has 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 equipment. An important factor will be the personal preferences of the owner country house, giving or garden plot.

Benefits

What are the advantages Water supply stations Grundfos?

High quality, manufacturability, reliability. Installations Grundfos.- This is the quality tested by time. This equipment is created taking into account the latest technological developments. Stations fully meet the requirements modern market. This is a relevant and high-tech product, characterized by high reliability.

Adaptability. Water supply stationsSupplied to the Russian market are very well suited for operating conditions in our country. Equipment adapted to work in the harsh climatic conditions.

Practicality.IN Grundfos pumping stationsprovided automatic protection From overheating and "dry" stroke. Installations are turned on and off depending on specific pressure parameters, water consumption and fill.

Low cost.Equipment Grundfos.different with a low cost for goods of this level.

Buy water supply stations Danish manufacturer you can in our company. We are a partner Grundfos.on the russian market, carrying out sale, installation and configuration of this equipment on favorable conditions for customers.

Ask any German to translate the phrase: "Unrivaled quality, high reliability and superpopularity.

Everyone will answer you without thinking: Grundfos. True, judging by the network reviews, many Russian users would answer. The same person hears about this brand for the first time, we recommend reading our article.

The reason is reliable, trouble-free work, complete equipment and the highest characteristics.

Each model is a set of solutions that fully exclude the participation of the user in the process of supplying the house and the water site.

Principle of operation ^.

For the injection of water into the NS GRUNDFOS water supply network uses a surface-type self-priming pump having a built-in ejector.

Starting the engine and its stop is carried out by a pressure relay signal in which the power thresholds and shutdown are configured by the user at its discretion.

To prevent frequent pump engine launches in the case of short-term use, the system is equipped with an elastic membrane hydroaccumulator, the volume of which is selected according to the performance of the station.

In the event that Grundfos will seem expensive to you, pay attention to watercolobot pumping stations, we wrote an article with reviews, technical specifications, prices, she, read only in our online magazine.

How to choose a pumping station? ^

NA Grundfos should be selected based on the required pressure and performance.

Their maximum values \u200b\u200bare given in the passport, but they help only the overall impression of the capacity of the equipment.

Much more valuable from a practical point of view are tables or graphs showing what productivity will have a pump with a different pressure.

Required performance is calculated approximately, given the following data: water consumption when using a tap (for pressure in 2 atm pipelines) is 3-4 l / min, shower - 10-12 l / min.

The necessary pressure is measured in the meters of water column, it is calculated by summing up the three components:

• required pressure in the pipeline (approximately 2 atm or 20 m. V. st);
• maximum height of waterborne reinforcement relative to the pump;
• hydraulic resistance of the pipeline.

For the selection of the station, the last value can be calculated approximately: every 10 m pipeline is equivalent to one pressure meter.

This, by the way, should be taken into account when determining the depth of suction.

If surface water in the well is below the soil level by 5 m, but the distance from the well to the pump is 20 m (This often happens when installing the pump in the house), then the maximum suction depth for the station must be at least 7 m (5 + 20/10).

Buying a station, check her completeness.

Grundfos pumping stations are equipped with everything necessary, but unscrupulous sellers can sometimes withdraw a filter or check valve to sell them separately.

In this case, the buyer says that these elements are not included in the NA kit. Many believe, because with the NS of other manufacturers, things are really different.

Important: Grundfos pumping stations are very demanding of the quality of power supply. Our electrical stars are known until they reach the quality to European, therefore it makes sense Together with the station acquire and voltage stabilizer.

Best-selling models ^

Just below, we led a mini-rating of the most popular pumping stations from Grundfos, their cost and main specifications. Buying one of these stations, as we believe will be quite reasonable money, given the reliability of these devices.

Grundfos JP Basic 3/24 ($ 350) ^

This high-performance pumping station is capable of providing a large water vacation home With all the amenities and developed irrigation system.

Maximum performance - from 3 to 5 cubic meters. M / h, the greatest pressure is 48 m. Providing such high characteristics, an economical JP pump consumes only 0.85 kW of electricity.

The permissible depth of the aqueous mirror in the source is up to 9 m. The effectiveness of the pump is not reduced even when the water flow on the USHE contains a large amount of air.

The station is equipped with a membrane hydroaccumulator with a volume of 24 liters. The pump can be used to increase the pressure in centralized water supply networks.

The station works with a reduced noise level, which is ensured by high quality assembly, the use of cast iron as the material of the pump housing, as well as water-cooled.

Grundfos JP Basic 3/50 ($ 400) ^

This model differs from the previous more spacious membrane hydroaccumulator, the volume of which is 50 liters.

The increase in the capacity of the drive contributes to the reduction of the number of cycles start-stopping the pump engine, due to which its resource increases significantly.

Grundfos MQ 3-35 ($ 520) ^

In this model, the pump, electric motor, a membrane hydroaccumulator, a duct and pressure sensors, as well as the check valve and the control unit are assembled into a single design.

The station has compact dimensions and does not require any free space after installation.

Self-primary type surface pump is able to raise water from depths up to 8 m and develop maximum pressure up to 35 m. The maximum amount of water pumpable for an hour is from 3 to 5 cubic meters. m.

An acknowledgment feature is provided. It lies in the fact that the pump after an emergency disconnection automatically tries to resume work with a periodicity of 30 minutes.

After 24 hours, the acknowledgment function is turned off, after which the pump can be started only manually.

The limit operating pressure is 7.5 atm.

The station can be operated at outer temperatures up + 45c. Thus, its fairly high price, as we believe, is quite justified.

Grundfos Hydrojet JP 5/24 ($ 550) ^

The small pump of this power station is only 0.75 kW deserves great respect. It is able to develop a pressure of up to 40 m or provide maximum performance at the level of 3.5 cubic meters. m / h.

The greatest suction depth is 8 m. Provide optimal mode The pump work will help a 24 liter drive.

The model can operate in regions with a hot climate, permissible temperature Outdoor air is + 40C.

Working pressure - up to 6 atm.

Grundfos Hydrojet JP 6/50 ($ 1200) ^

A model with high performance, the maximum value of which is 4.5 cubes. m / h. Maximum pressure - 48 m.

Power consumption - 1.4 kW. The depth of suction (maximum) is 8 m. The capacity of the membrane drive is 50 liters.

The pump manages the pressure switch with the built-in function of protection against dry stroke.

It is also a good alternative to Grundfos, it may be Italian, they are not less reliable and often more affordable by price.

In the event that you look after a pumping station for dacha house, read at first, we picked up the most important information on this topic.

Opinions of users ^.

Alexey T., S.-Petersburg

I have a Grundfos MQ 3-45 station at the cottage. Immediately note the advantages: the pump is working very quietly, the launch occurs smoothly, without launch currents of a large value. 100% trouble-free equipment. Only one thing can be attributed to the disadvantages: in five years of operation, plastic burst on the power button. She had to use too often to force the pump to be forced during periods of jumps and voltage awards. By the way, all potential buyers I recommend to take into account that such fluctuations in the power supply network are very poorly affected by the pump resource, so if you have an unreliable power grid - look for the model more improving or connecting Grundfos through the stabilizer.

Station mode - year-round. For greater convenience, installed an additional tank per 100 liters. The pump turns on when the pressure drop is up to 2 bar and disconnects, as soon as it raises it to 4. Performance enough for several points of water intake, as well as to ensure the operation of the washing machine. Even with the maximum flow of water, it is always enough. In general, I advise everyone to purchase such a thing, despite the high cost. It was convinced of his own experience - she is quite justified.

Alexander P. G. Volgograd

Four years ago, put the automatic pumping station Grundfos for water supply of a country house. Works round year, in the summer, especially intensively because of irrigation. I decided to purchase after a long study of the forums on the network, judging by the reviews, it is the best version of the pumping station. In his choice, never disappointed. Sometimes you have to read user complaints, they say, often fails. Most likely, the point here is in the poor quality of the power supply, due to the presence of an electronic controller, Grundfos pumping stations are very sensitive to voltage drops. I immediately connected through the stabilizer and I can declare with full responsibility: the equipment works like a clock.

Water Station shakes from the well. The pumping of the pressure and flow sensors and flow sensors. If the water in the well drops below the intake nozzle, the station automatically turns off.

It especially likes that it supports constant pressure at any expenditure, and not as in conventional stations: first the pressure in the crane decreases until the membrane drive is empty, and then when the pump is started, it grows. With Grundfos, everything is wrong, water flows, like from a crane in an urban apartment.

I also want to note the low noise level and absolutely complete complete set, I did not have to buy anything in addition at all.

I can not specify any flaws, except the price bit bites.

Victor M., Kaluga

First, installed the automatic pump station Marina. It is quite good, but when the pump is turned on too much, and the floors go straight to the walker, it seems - that's the house will fall apart. I sold it to a friend, and in return I bought Grundfos JP. Not heard at all! I installed it in the basement, during the work of the unit I do not feel any discomfort. The pump is very productive, confidently pulls water, despite the great depth of the well and a substantial distance to it. Without problems, I can take a shower simultaneously with the work of the washing machine.

What is the check valve for the pumping station - how to choose how much it costs

Read 7 min.

Pumping stations as an alternative to the classic productive pump, are very popular despite the highest cost of equipment of this class. Leader in segment pumping equipment In the world and domestic market is the Grundfos brand.

Grundfos pumping stations are distinguished by reliability, durability, reliability of work, and their technical characteristics are higher than that of analogs.

Types and differences of Grundfos pumping stations

The main purpose of the pumping station as part of the heating or water supply system is to increase the pressure in the system and ensuring efficient water intake from the source or reservoir. The classic pumping station consists of a pump, which often includes a diffuser, pressure or accumulative tank (outdated modification), membranes, pressure switch, 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 well pump.

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

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

• built-in - such models carry out water as a result of the vacuum and operate at a depth of 40 m, refer to disadvantages high level noise and substantial cost;
• remote - borehole and well pumps, working at a depth of 20 m, the design includes 2 pipes, one of which ensures the movement of water downwards, due to which the pressure level and the suction capacity of the second pipe begins to increase.

Advantages of pumping stations

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

Professionals also note that the products of this brand:

• stable to loads and works in uninterrupted mode;
• has low noise;
• economic due to low power consumption.

The lineup

The range of pumping stations GRANDFOS is diverse - among the models presented in the appropriate segment, it is easy to choose equipment to any budget and to implement any project.

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

JPA.

The JPA equipment series is designed for pumping clean from foreign enclosures and abrasive particles of water. The construction is based on the Self-priming pump JP, inner surface Pressure tank covered anticorrosive coating. Each model is made in the cast-iron case possesses an improved made from composite material The impeller is used to attempt the pressure in the water supply system, garden irrigation plants with maximum suction depth to 9 m.

The series includes a pump station Grundfos JP Basic 3T, Grundfosjpa3-42 PT-HU GRUNDFOS JPA 4-47 PT-H, operating in the temperature range, respectively, 0 ... 55 and 0 ... 35 o C, respectively.

CMB / CMBE.

Grundfos CMB is a series of automatic self-priming attitudes, the main components of which are the type SM pump, the automatic control unit RM1 or PM2, as well as an electric motor. The equipment operates at a depth of 8 m and is used mainly in the water supply area of \u200b\u200bthe household sector.

The GRUNDFOS CMBEB equipment series difference from the predecessor series is also equipped with a built-in, which, as the water consumption parameters change, transmits the signal to the engine and adjusts the frequency of its rotation.

The most popular models:

• Grundfos CMBE 3-62 - a compact model with a low noise level operating with a pumped medium in the temperature range -20 ... + 55 o C.
• Grundfos CMBE 5-62 has a slightly large weight and dimensions in comparison with model 3-62 and provides a nominal pressure of 44.2 m (a similar indicator 3-62 - 39.4 m).

Hidden JP.

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

All series models are completed with ejectors, which, if necessary, disconnected, creating a vacuum of Hydrovacuum pumps operate at a depth of up to 8 m. Different for a long time operation due to the fact that the main parts of the equipment (body, wheel shaft, connector fittings) are made of of stainless steel. Horizontal single-stage centrifugal stations in this series are completed

SINICATION:

• pump Grundfos JP 5 - self-priming surface unit, providing maximum pressure up to 40 m and capable of working in the temperature range of 0 ... 55 o C;
• Grundfos JP 6 - Unlike the predecessor, Hydrojetjp 5 provides water lifting from 48 m. And has a large external dimension.

Both subsequent models of various performance, which is also displayed in the marking. For example, the GRUNDFOSHYDROJETJP 6-24 model is completed with a 24-liter tank. An analogue with the same volume of the tank is also in the subsequent jp5, but model 6-24 has an increased capacity of 1400 W and is able to raise water to a level of 53 m, due to which 2-storey cottages are also applied.

MQ.

Household pumping stations Grundfos MQ 3-45 and 3-35 are changed to automatically increase the pressure in the water supply system in a private house or apartment, for picking watering and irrigation systems, for pumping clean or rainwater.

Installations are completely complete, raise water from a depth of up to 8 m and provide pressure to 43 m with minimal power consumption.

The advantages also include a low noise level, protection from "dry" startup, automatic reset and reset function, a low-volume pressure tank that reduces the number of switching / shutdown cycles, and non-visibility to maintenance. The permissible range of temperatures of the pumped liquid - 0 ... 35 o C.

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

VDS.

It is impossible to leave the Grundfos fire extinguishing system. It is completed with a pump with a one-way suction mechanism with a short or long clutch and connects to an electric or diesel motor. The impeller of the station is made of bronze, and all contacting components are made of stainless steel wear. All this is concluded in a durable and durable case of cast iron. Fire extinguishing systems are used in equipping industrial and production sites, warehouse, office and business centers.

Characteristics

The key characteristics when choosing a pressure station are head and performance. They determines whether the equipment can satisfy the need depending on the number of users and water consumption.

The performance of the pumping station directly depends on the pressure, or the pressure level inside the system. So, for using the cranes is sufficiently pressure 3-4 l / min. at random pressure in 2 atmospheres, and for uninterrupted work The force of pressure should be 12-13 l / min.

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

Water supply to the cottage, to the bath, to the house, to the area - from the well or well - occurs with the pump. But to ensure the performance of the system, other components are also needed - sensors, controllers, cumulative tank, etc. All this can be selected separately, and you can purchase a pumping station.

Pumping station is all equipment to ensure the house of water assembly. Her plus is that it can maintain constant pressure in the system, regardless of the flow.

Equipment from the pump (type - any suitable for your conditions), containers for storing water stock and control sensors. The level of comfort of the system is largely determined by the type of reservoir used. It happens:

• with storage tanks;
• with hydroaccumulators.

The cumulative tank is a normal container in which the water level is controlled by the float. The level increases, the pump turns off, decreases - turns on. But such a system provides very low pressure. It depends on the height difference that you managed to ensure. because of low pressure Heaters and the other household appliances It is impossible to use. Although, if you install it high enough, you can create a sufficient difference drop in order to take a shower. The second unpleasant detail of the use of such a tank - with a malfunction of the float mechanism there is a real threat to pour house. This problem is solved - a discharge nozzle is established, but the system is still not reliable enough.

More modern modifications of pumping stations use hydroaccumulators. They allow you to create and maintain stable pressure. Such a system also allows you to increase the pouch, which extends the life of the equipment.

Hydroaccumulators in pumping stations are a membrane type tanks. It is divided into two sectors of the elastic membrane. In one part contains gas (initially it is under such a pressure), water is injected into the second. There is also a sensor controlling pressure. It is set to the upper and lower pressure limit.

When pumping water, the membrane in the tank is stretched, squeezing gas and creating even greater pressure. When the top threshold is reached on the sensor, the pump is turned off. In the tank with water, this also created a certain pressure. If a crane is open somewhere, water with a good pressure is supplied to the distribution point. The volume of water decreases, the pressure on the membrane is reduced. When the bottom threshold is reached, the relay is triggered, the pump is turned on, increasing it again.

This system allows you to maintain a stable pressure regardless of how many cranes are open. Therefore, when installing equipment with membrane water tank, you can use any type as well as automatic washing machines and other household applianceswhich places water pressure requirements.

As installed

Most of the pumps are noisy strong enough, therefore it is desirable to establish a station in a non-residential room with good sound insulation. If we are talking about the supply of water giving seasonal living, then you can put the equipment close to the well, only ensuring protection against precipitation and the sun (usually make a small pit that is closed with a lid). If the water is needed for home or for a bath, in which they are going to come and in winter, you will have to be taken to a separate room (or a warmed pit, but so that the pump does not freeze).

Choosing a model, a pumping station for the house, pay attention to the metal from which the pump housing is made. Steel is usually very noisy, but the cast-iron housings are quenched almost all sounds. They deliver less hassle, although they are more. But the best option It is a stainless steel hull. With him the troubles of all, although he is more noisy than the cast iron.

The entire system is assembled as follows: a pipe or a pipe is lowered. Water is fed to the input of the pumping station, from there falls into membrane BuckAnd then it is already divorced by home and plot.

How to pick up

Normal provision of water at home, cottages or baths is possible only when proper selection All parameters. And you need to choose:

First of all, you need to know whether water is quickly arrived in a well or a well. If the debit of the well or well is less than 1.7 m 3 / hour (the amount of incoming water in one hour), the required pressure will not be able to ensure. The equipment is designed for higher performance.

Selection of type pump

One of the most difficult and responsible stages is the choice of pump. It must create sufficient pressure to raise water to the necessary height. At the same time, its performance should provide water needs, but at the same time, should not exceed the power of the well or well.

Pumping stations use self-priming pumps of vortex and centrifugal type. And those and others can be in a monoblock or console execution. But such pumps can lift water with relatively small depths:

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

If the water is supplied with greater depth, it will be necessary to use the submersible pump. It is bought, and based on it collects a pumping station, the second way is to put the unit with a remote injector.

Pump is one of the main components of the system

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

System S. submersible pump With a great depth of the well, it will be the best option. It is effective and "pulls" a little energy. The only nuance: the submersible equipment is quite sensitive to the purity of water. In order to inside the sand Il and other extraneous particles, a special mesh filter is installed on the inlet nozzle of the pump.

Power selection

Productivity is selected from accounting for the maximum water consumption. Count how much cranes can be opened at the same time, count, the volume of water, which goes through them. This will be the required power of the pump. In general, this parameter is better to take with a reserve, as the work at the limit sharply reduces the "life" of equipment.

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

Selection of hydroaccumulator volume

In general, it is desirable to install as a volumetric tank as possible. This will provide a rarely inclusion of the pump. After all, the less often it turns on, the longer it will be: starting currents on the motor act destructively. On the other hand, a large hydroaccumulator needs to be installed somewhere, and he also costs decent money. But when the power is disconnected, you will have a water supply in the system equal to the volume of your tank.

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

Featuring all these components, you can start the selection of the pumping station, which will meet your requirements.

Connecting a pumping station

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

But everything is not so simple. We need to provide maintainability of the system:

• Make everything so that you can overlap unnecessary branches.
• Provide the possibility of draining water for the winter. Since the system necessarily contains the check valve, it is required to make a tap a little higher.
• At the entrance and exit to the pumping station to supply shut-off cranes. Broken them, it will be possible to remove equipment for prevention without much difficulties.

Since most of the components of the system are still, the connection of all elements occurs with the help of American-naked nuts. Otherwise collect, and then, if necessary, disassemble, very, very difficult.

One of the plug-in schemes is depicted in the photo. The purpose of most elements is understandable, with the exception of cranes "Cutleling 1" and "Cutlery 2". They are used when filling the system during the first start. This is how the process is happening:

• The crane "Cutlery 2" and a drain crane is open, "Cutleling 1" is closed. With this position of the valves, pouring water into the appropriate input, fill in the lower part of the system. Part of the air leaving the drain crane.
• Now we close the "Cutlery 2" and a drain tap and by 5-7 seconds we turn on the pump. After 5 seconds, open the "Cutlery 1". In this way, an increased pressure is created in the system, which squeezes air from the system (a pair of cranes should be open).
• The second start cycle: the "Cutle 2" crane is open, closed "Cutlery 1" and a drain crane. We will turn on the pump for a short time.
• After 5-7 seconds of the pump, we open the "Cutlery 1" crane. The system must start. If there are still a lot of air, you can repeat the second start cycle.

In the working condition "Cutleling 2" and a drain crane is closed, "Cutlery 1" is open.

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

The second pumping station circuit in the comments almost does not need. As a bay system, a funnel is installed here, and the start starts after the water fills the entire container inside the pump. Starts may need several so that all the air squeezed out of the system.

This system is interesting for a thoughtful cleaning system: on a branch that goes into the house, a water filter is installed. As a result, in the crane we have clean water without impurities.

Popular manufacturers and reviews about the operation of pumping stations

As usual, besides difficulties with the selection of equipment parameters, difficulties have difficulty choosing a brand. Sellers do not always advise that better, trying to often sell what is more expensive. Often the only source of more or less reliable information serve user reviews.

Pumping stations

These units have a housing from cast iron, stable legs, engine protection from overheating. Work automatically, do not require the tincture of parameters. Three series are produced with different pumps for different depths:

• RSM series - from a depth of 8 meters to raise up to 100 liters / min.
• Series Arm - pumps with a submersible injector for wells in a depth of more than 30 meters. Manages the operation of the pressure relay.
• Resistant to corrosion series itself has a bronze impeller, can raise water from a depth of 30 meters.

To date, such complex systems as pumping stations are used everywhere and dispense conventional pumps due to their ability to automatically uninterrupted with water. Installation of the pumping station is simple, convenient, reliable and economically favorable arrangement of the water supply system.

The most sold segment of the water market is the pumping stations of the Danish company Grundfos.

1 Why are Grundfos pumping units among the best?

For the water supply system today, the buyer offers a rich selection of pumping equipment of a variety of domestic and world manufacturers. Among them, the leading position occupies a Grundfos trademark, which manufactures and produces over a dozen diverse models. pumping installations.

Pumping station (NA) is comprehensive system, consisting of surface pump, accumulative sealed tank separated by two membrane compartments (hydroaccumulator) connected to a flexible pump pump, pressure switch, control unit.

Pump Makes out open source Water fence, feeding it into a pressure hydroaccumulator. To turn off the pump, water supply is carried out at the expense of reserves stored by the hydroaccumulator. After falling in it, pressure to a specified level, the relay starts the pump. Then there is a repetition of the cycle.

Also components are: engine, pressure gauge, hose high pressureThe link link is a control unit connecting elements. Some models are used as discharge plants in order to increase fluid pressure in the system. Stable about 1.5 ATM pressure, creating a good pressure in the water taps and on the upper floors, receives a consumer with the Grundfos pumping station.

The role of the pumping installation is to provide a consumer of constant water supply to the points of the fence and maintain due pressure in the autonomous water supply. Due to the content of the non-submersible, and the surface pump, the device allows you to maintain wells with a small diameter, such as a well-needle, for the arrangement of which standard aggregates are not suitable. These systems work, as a rule, with a depth of 8 m. The instruments, the equipment of which received an ejector, swing water from a depth of 30 m.

Specifications such as the height of the fence, power, the volume of accumulative capacity and performance are strong sides Products Grundfos. Power, the fundamental indicator, pumping installations range from 600 to 1500 W. Control of dry stroke, built into some brand models, provides for a pump shutdown when water is missing, engine protection from overheating. This feature also stops the operation of the NA in the case when the unit operates on elevated circulation, thereby contributing to its long-term use.

Pumping stations are equipped automatic system Management, which is an additional convenience for permanent operation in a private house. It turns on the device if the hydroaccumulator is empty, and turns off when the container is filled. Grundfos aggregates are designed for the presence of various pollution and circulating problems in the liquid.

1.1 Benefits and Scope Applications

Automated equipment is used in the following areas and spheres:

• in industrial buildings;
• in hospitals;
• in farms in the purpose of watering and irrigation garden-garden crops, green plantings;
• in fire extinguishing. This is a combination of engineering communications from the working and reserve centrifugal pumps, collectors regulating and shut-off reinforcement, automation and control devices, control cabinet;
• in the territories of the waterproof lowland for water removing;
• in the sewage to raise on the elevation wastewater;
• in oil fields, special DNSs are applied in the oil and gas industry - dozhmy pumping stations;

The greatest distribution of NAs received in the water supply systems of cottages, country houses, plots.

Benefits:

• undemanding in certain care and constant supervision;
• the strength of the structure due to the high-quality and strong material of the execution of all nodes of hydraulic equipment;
• energy efficiency;
• silent (samples with ejector);
• good height of lifting and pressure;
• high volumetric feed;
• safety operation;
• easy installation-dismantling;
• low costs during operation and maintenance;
• long service life;
• mobility and reliability;
• anticorrosion coating and others.

2 Overview of popular models

The popularity of pumping stations GRANDFOS provides acceptable price and high quality. They earned a good reputation, tested with success in complex operational and climatic conditions. The main products of the company are the National Assembly of the Hydrojet and Basic series. The equipment of two lines coincides in many ways - constructive solution and the principle of work, the difference lies in the material that was used in the development of the unit of the aggregate. Hydrojet series pumps have stainless steel execution, the lineup Basic - aluminum alloy.

GRUNDFOS JP BASIC series systems are easy to use, their work process does not require constant control. Press Buck And pressure relays contribute to the rational exploitation of hydroconstructions. When switching on, a container is filling, upon subsequent use to the tank, the liquid flows as it devoids it, thus, the device is turned on, turns off as needed, contributing to the cost-effective mode, preventing accelerated wear.

In addition to providing water, the model of this line is performed tasks for pumping wastewater and irrigation organization. They supply water to height to 7-8 m at a speed of 3 cubic meters and are designed for functioning at positive temperatures.

The Grundfos JP Basic 3PT pumping station has a greater power with a maximum capacity of 3.7 cubic meters / h. The pressure is 44 m and is achieved due to the pressure in the hydraulic system 7.5 bar and at the entrance - up to 3 bar. Refers to mobile and easy equipment, total weight is 17 kg. Noise level does not exceed 55 dB. The capacity of 20 L allows you to adjust your own rhythm.

Grundfos Hydrojet JP is a reliable and durable series with internal and outdoor protection from corrosion. Automatic switching on / off allows consumers to save electricity spending. Under the conditions of unstable water supply, the hydraulic product is protected from overloads. Rising pumping station Hydrojet JP 5 24 L is a model designed to supply water into residential premises, but most often in the centralized water supply system as a pressure enhancement station.

With a capacity of 24 liters, automatic pump adjustment is proposed, independently launched to reduce the pressure level in the hydroaccumulator. The unit works with a capacity of 750 W, raising water to a height of 43 m. Grundfos JP 5 pump produces performance of 35 l / min.

For Grundfos Hydrojet JP 6 24 is characterized by an increased power of 1400 W. Lifting height reaches 53 m. This allows you to exploit the NA in two-storey buildings. The device is easily transferred, since the tank size allows you to accommodate 24 liters of fluids. A fully equipped pumping station is ready to use, it is enough to connect to the system, the workflow is automatically implemented.

The pumping unit Grundfos CMBE is equipped with a frequency converter, due to this, the pressure is constantly maintained at the points of the fluid fence, regardless of the number of consumers. The pressure sensor transmits the frequency converter when changing the need for water consumption, in turn the converter adjusts the rotation of the working wheels. Compact design has a 2-liter membrane tank, a fitting with 5 positions and check valve, pressure gauge.

CMBE is characterized by simplicity in installation and low energy consumption, presence of protection from dry stroke. Its action is made with low noise. Used in the field of household water supply, commercial buildings. The Grundfos CMBE 5-62 model belonging to this series gives pressure of 44.2 m at a nominal flow rate of 5.6 cubic meters / h. Pressure - 10 bar. Grundfos CMBE 3-62 preceded the said pumping station and is largely similar to its "adept". Its consumption is 3.7 cubic meters / h, pressure - 39.4 m, the cumulative reservoir accommodates 2 liters.

Also supplied by the pumping station with protection from work without water is Grundfos MQ 3-45. In addition, there is protection against overheating and frequent inclusions.

Installation supplies water from mine wells, wells and water bodies with a depth of 9 m, can be used as a device with which water pressure will increase. The pressure is 45 m, the volumetric supply is 4.4 cubic meters / h. Power consumption of only 1kW. NS - the most low-noise among the analogues. Monoblock design.

2.1 How do Grundfos MQ 3-35 and 3-45 pumping stations work? (video)

2.2 Other stations

Other hydroplarys of the Danes are equally in demand. For example, on the basis of centrifugal pumps of the CM series, professional installation of GruDfos CMB water pressure increases with a tank in 24 liters. Grundfos CMB has demonstrated reliability due to the pumps of the self-priming principle of stainless steel. They are protected from cyclicity and dry stroke.

The Grundfos fire extinguishing station includes Hydro MX 1/1 CR10-3 with 1 basic and 1 reserve aggregates. Serves both in sprinkler and drainage modes. Grundfos complete pump station inherent automatic transition to a backup power supply line, remote control Electric boards, a membrane pot of 25 liters. At the output pressure 16 bar.

It is also among the popular devices to highlight also pumping stations Grundfos MQ 45, Grundfos JPA 4-47 PT H, Grundfos JPA 3-42 PT H.