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Since the issue of water supply directly affects the life support of a country house, when choosing equipment, the consumer prefers, first of all, reliable devices, and in this series, the leadership, of course, belongs to the products of the Danish brand, especially since the proposed range allows each homeowner to choose a station model with taking into account his needs. And the scope of the equipment is quite wide and is not limited only to supplying water to the house: with the help of a pumping station, you can easily organize an automatic irrigation system in a garden or greenhouse, provide maintenance of the pool, and owners of city apartments with weak or unstable pressure in system.
For a private house, the Grundfos 45 pumping station of the MQ series can be the best choice, which can be used for sources with a depth of up to 8 m, while the device has enough power to pump water up to 45 meters away. The model of the same MQ 3-35 series has a lower power and is installed if the distance to the water intake does not exceed 35 m. You can also use these models to increase pressure both for a house with an autonomous water supply system and for an apartment with a centralized supply. An excellent choice for summer residents or gardeners can be models of the Grundfos JP series with a capacity sufficient for organizing autonomous water supply in the house, as well as for automatic watering or filling special pool tanks on the site. It is important to pay attention to the fact that the products of this series differ not only in power and performance, but also in the volume of the hydraulic tank.
The Scala2 pumping station has also gained rapid popularity among consumers, providing excellent pressure in a private house with an average water consumption. It is allowed to operate with a large number of water points - up to 8 units, while the installation has a low noise level, which does not create discomfort in the house. The power of the device is 2 kW, with a capacity of 3.6 m2 / h, the maximum depth of water rise is 8 m. A head of 45 m allows you to install such stations both in one-story houses and in two-story cottages.
The Grundfos CMB and CMBE equipment series refers to self-priming models, an important difference of which is the presence of a frequency converter. The main functions of this device which are reduced to adjusting the operation of the engine depending on the intensity of water consumption.
Products of the Grundfos trademark are presented in a wide range in the ALFATEP online store, and our experts are always ready to help you choose the right model of a pumping station for your home, taking into account the characteristics and volumes of water consumption. You can contact them by calling the hotline, as well as by asking a question of interest on the website of the online store website, in the feedback section.
At the request of customers, delivery of equipment to the buyer's object can be carried out by the transport service of ALFATEP, and if you need help installing and connecting the pumping station, we recommend contacting our experienced craftsmen.
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 adapted to the climatic features of the 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:
- Fire extinguishing pumping stations are characterized by high productivity and high pressure.
- Grundfos domestic pumping stations are used in private homes. They are compact and quiet in operation.
- 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 different versions, 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. The MQ, JPB series are developed according to the company's technology, but are produced by subsidiaries 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.
The Grundfos Hydrojet JP series is extremely rugged. Anti-corrosion coating is made outside and inside. Reliable automation leads the process in an economical 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 membrane 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. The Grundfos Hydro MX pump type has more than 60 models. Equipment can be selected for different fire extinguishing systems:
- productivity - 1.1-55 kW, with an automatic start system;
- 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 represent a new type of 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, 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 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.
Water is supplied to the dacha, to the bathhouse, to the house, to the site - from a well or a well - using a pump. But to ensure the system's performance, other components are also needed - sensors, controllers, a storage tank, etc. All this can be selected separately, or you can purchase a pumping station.
A pumping station is all the equipment for providing a house with water in an assembly. Its advantage 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 water supply 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.
A storage tank is a conventional container in which the water level is controlled by a float. The level rises, the pump turns off, it goes down - it turns on. But such a system provides very low pressure. It depends on the height difference that you managed to provide. Due to the low pressure, heaters and other household appliances cannot be used. Although, if you install it high enough, you can create a height difference sufficient to take a shower. The second unpleasant detail of using such a tank is that if the float mechanism malfunctions, there is a real threat to flood the house. This problem is solved - a discharge 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 stable pressure. Such a system also allows you to turn on the swap less often, which prolongs 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 kind of pressure), water is pumped into the second. There is also a pressure sensor. It sets the upper and lower pressure limits.
When water is pumped in, 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 switched off. At the same time, a certain pressure is also created in the water tank. If a tap is open somewhere, water is supplied with 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 is turned on, increasing it again.
This system allows you to maintain a stable pressure, no matter how many taps are open. Therefore, when installing equipment with a membrane water tank, you can use any type, as well as automatic washing machines and other household appliances that require water pressure.
How to install
Most pumps are quite noisy, so it is advisable to install stations in non-residential premises with good sound insulation. If we are talking about the supply of water to seasonal residences, then equipment can be placed near the well, only providing protection from precipitation and the sun (usually they make a small pit, which is covered with a lid). If water is needed for the house or for the bath, which they are going to come to in the 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 housing is made. Steel usually makes a lot of noise, but cast-iron cases dampen almost all sounds. They deliver less hassle, although they cost more. But the best option is a stainless steel case. With him, the least hassle, although he is more noisy than cast iron.
The whole system is assembled as follows: a pipe is lowered into the well or lowered. Water is supplied to the inlet of the pumping station, from there it enters the membrane tank, and then it is already diluted around the house and the site.
How to choose
Normal water supply at home, cottages or baths is possible only with the correct selection of all parameters. And you need to choose:
First of all, you need to find out if the water arrives quickly enough in the well or well. If the debit of a well or well is less than 1.7 m 3 / hour (the amount of incoming water in one hour), the required pressure cannot be provided. The equipment is designed for higher performance.
Selection of pump type
One of the most difficult and responsible stages is the choice of a pump. It must create enough pressure to raise the water to the required height. At the same time, its performance 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 execution. But such pumps can lift water from a relatively shallow depth:
- a pump with a built-in injector will provide supply 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 install 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 - in fact, two pumps work simultaneously. But sometimes it's the best way out.
A system with a submersible pump with a large depth of the well will be the best option. It is efficient and "draws" 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
Productivity is selected taking into account the maximum water flow. Estimate how many taps can be open at the same time, count 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 consumption is 2-4 m 3 / hour, and the equipment is selected accordingly.
The choice of the volume of the accumulator
In general, it is desirable to install as large a tank as possible. This will ensure that the pump is turned on more rarely. After all, the less often it turns on, the longer it will serve: starting currents on the motor are destructive. On the other hand, a large hydraulic accumulator needs to be installed somewhere, and it also costs decent money. But when the power is turned 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 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 start choosing a pumping station that will meet your requirements.
Connection of a pumping station
As mentioned above, the system is simple: a pipe is immersed in a well or a well (more often 32 mm polypropylene, but sometimes 40 mm - it depends on the performance of the pump). It is supplied to the entrance of the station, and from the exit it is supplied to the water supply manifold.
But everything is not so simple. We need to ensure the maintainability of the system:
- Do everything so that you can overlap unnecessary branches.
- Provide for the possibility of draining water for the winter. Since a check valve is necessarily present in the system, it is required to make the outlet a little higher.
- Install shut-off valves at the inlet and outlet of the pumping station. Having blocked them, it will be possible to remove the equipment for maintenance without any special 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, if necessary, disassemble.
One of the connection diagrams of the pumping station 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" taps. They are used when filling the system during the first start-up. Here's how the process goes:
- The "cut-off 2" valve and the drain valve are open, "cut-off 1" is closed. With this position of the valves, pouring water into the corresponding inlet, we fill the lower part of the system. Part of the air then exits through the drain cock.
- Now we close the "cut-off 2" and the drain valve and turn on the pump for 5-7 seconds. After 5 seconds, open "cut-off 1". In this way, increased pressure is created in the system, which squeezes air out of the system (a couple of taps must be open).
- The second start-up cycle: the “cut-off 2” valve is open, the “cut-off 1” is closed and the drain valve is closed. Turn on the pump again for a short time.
- After 5-7 seconds of pump operation, open the “cut-off 1” valve. The system should start. If there is still a lot of air left, you can repeat the second start cycle.
In working condition, “cut-off 2” and the drain cock are closed, “cut-off 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 scheme for connecting the pumping station almost does not need 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 cleaning 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 operation of pumping stations
As usual, in addition to difficulties with the selection of equipment parameters, there are difficulties with choosing a brand. Sellers do not always advise what is better, 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 legs, engine protection against overheating. They work automatically, do not require setting parameters. Three series are available with different pumps for different depths:
- RSM series - from a depth of 8 meters will raise up to 100 liters / min.
- APM series - pumps with a submersible injector for wells with a depth of more than 30 meters. Controls the operation of the pressure switch.
- The corrosion-resistant CAM series has a bronze impeller, can lift water from a depth of up to 30 meters.
