A huge selection of pumping units, different from each other not only by performance, but also the device, the principle of action, can put in a predicary position. What to choose a pump for a well and how to work surelessly, economically and responded to all presented requirements? Answer this question will be not difficult if you figure it out in all nuances, consider not only the characteristic features of various categories of equipment, but also auxiliary equipmentAutomation. It is equally important to determine the most reliable manufacturers of technology.
All pumps that can be used to supply water from a well can be classified according to the principle of action:
Depending on the method and installation site Pumping aggregates can be:
By the name of these categories, it is clear that some are installed on the surface, taking water from the source with a special pipe or hose immersed in the well, the second works in the water temperature. Nevertheless, the installation site is not the only difference, the models of these types with an equal power will have different capabilities and specifications. Comparing pumps for wells - how to choose the unit can be understood by the operational capabilities of the models.
Surface pumps are most often installed next to the well, but in some cases "afloat" can work, for example, on a raft of foam or other floating and moisture-resistant material. In the second case, it is important to calculate the possibilities of floating support and relate them to a mass of the unit.
Special attention when choosing a surface pump should be paid to the height of the lift, the parameter differs from different models, but usually does not exceed 8 meters. For greater depths, it is recommended to choose submersible models, but in the case when the excess of the depth of the well is not large, you can use a surface pump with an ejector. A fair device, the principle of operation of which is based on the formation of a vacuum with increasing water flow rate increases the ability of the unit to raise fluid from a large depth.
The main advantage Surface pumps - simplicity maintenance and repair, accessibility for visual inspection.
DisadvantagesIn addition to restrictions on the height of water lifting, it is possible to consider higher, compared with submersible models, noise level and vulnerability to expose external factors.
If the surface unit is used seasonally, it can be protected from precipitation using a canopy. With year-round use of technology, it will be necessary to install it in a heated insulated room or in to avoid freezing.
The deep pump for the well is usually used when the water is below the level of 8 meters and, as a rule, it is set in such a way that about 50-100 cm remained from its bottom to the bottom to be closer, the bottom of the bottom sediment will increase. The quality of the supplied water will decrease, and the likelihood of breaking the pumping unit, designed to work with clean water, will increase.
What submersible pump to choose for a well, determine, among other things, according to the lifting characteristics that the aggregates are higher compared to the analogues.
In addition, such models are recommended to be installed in cases where the well is close to home or outdoor recreation area. The mass of water over the unit absorbs sound waves, so the noise level when working such models is noticeably less. Choosing pumps for immersion wells - which is better solved on the compliance of the unit with the requirements of productivity and pressure.
Lack of submersible pumps - service complexity. Even in order to inspect and check the unit, it is necessary to stop its work and remove the technique from the well using the cable.
Given the features of the work of various models, it is easier to choose the best suitable pump for specific conditions.
The vibration water pump for the well differs from all other designs with the absence of rotating elements. This nuance allows you to significantly increase the wear resistance of the technique.
Instead of a classic motor in vibratory pumps, an electromagnetic coil is running, attracting a rod with a piston when current. At this time, a vacuum is created in the pump chamber, water is sucking inside. The next moment Works - the disappearance of the current, stop the rod stroke. In order for the water to go back, the return valve is triggered, therefore, the fluid is moved under the pressure of the piston. In the following vibration, the appearance of the current and the movement of the piston will provide not only the absorption of the liquid, but also the pushing water from the space for the piston in the feed pipe.
Similar reciprocating movements of the rod can be considered vibrations, so the pump and received its name.
Installation of vibration models in general is safe for the well. The exceptions are sources on floating. Due to the low density and strength of the soil, vibration can cause deformations in soil layers and, as a result, the destruction of the structure of the well.
Reliable vibration pumps differ also by low costWhat makes a similar option very attractive for equipping the water supply system if the selected model is also suitable for specific conditions.
The principle of centrifugal pumps for wells for water supply is based on the formation of the working element of the centrifugal force, under the action of which the water passes from the filled chamber into the pipeline, forming the area of \u200b\u200bthe vacuum into which the next portion of the fluid is suused. The direction of movement of water is determined by the pressure in various sectors of the pump: reduced at the center of the rotating wheels, increased - at the walls.
Structurally, the working element is an illuminated wheel with blades placed on it. Bending blades - against wheel stroke.
Submersible well pump Grundfos. Centrifugal type The operation of the centrifugal pump has its own characteristics. Turn on the unit only when it fully immersed in water. This allows you to avoid dangerous for the "dry stroke" technique and protect the model from breakage at the voltage jump. When operating a centrifugal model, it is important to control the water level, so the pump for the immersion well with automation comes in a set or with the simplest float, which will eliminate the likelihood of air capture when the level decreases.
Centrifugal pumps will become the best answer to the question of which pump is better for the well, in which water contains small insoluble impurities (sand). The content of impurities in water can reach 185 g / m3. To protect against abrasive sand, it is better to choose models with stainless steel housings. If water is clean, and the operating mode of the unit is not excessively intense, you can choose cheaper models with plastic cases.
Tip: If there is a large number of impurities and sand in the water, it is worth paying attention to the vibration pump that more racks to pollution, of course, if its performance is arranged.
Which pump to choose for water supply from the well, determine by technical characteristics models. They must comply with the requirements, so before purchasing it is important to determine the necessary values \u200b\u200bof the main parameters.
Power The value determines the ability of the unit to create a certain pressure and affects the performance of the technique. Not worth it, however, assume that for efficient work Systems are enough to choose the most powerful unit. Power, much higher than the required value, may cause overpressure In the pipeline, extrusion of gaskets, the formation of breaks. In addition, a powerful pump for a well to the cottage will quickly dig out the volume of water in the mine, and this will result in frequent inclusion and shutdowns, rapid wear of the aggregate.
Performance is the amount of water volume, which the well pump for water supply at home can flow over a certain period of time. The correct selection of this characteristic will ensure uninterrupted water supply even during peak loads. To calculate, it is necessary to summarize the flow of fluid in all the water points available in the house.
If the exact value of the parameters is not known, you can use the following reference points:
If the bath and irrigation system is connected to the water supply system, you must add 1000 l / h for each of these objects.
Of course, the likelihood that all water consumption points will work simultaneously, not large. Such calculations are determined not nominal, maximum value of water consumption.
Submersible pump For a well with automation that does not have the necessary performance is not only interruptions in the water supply at home, but also the increase in the likelihood of accidents during operation of the equipment sensitive to the supply of water.
The pressure of the pump determines its possibility of lifting water to a certain height from the depth of the well and transport the liquid along horizontal highways to the water consumption points. When summing up the head for lifting and pumping, every 10 meters of horizontal distance are equated to 1 lifting meter.
For example, with a depth of a well of 7 meters and its removal from home 20 meters, the computational pressure is calculated as follows: 7 + 20/10 \u003d 9 meters. If the house has more than one floor and assumes the installation of water intake points above the first floor, it should also be considered when calculating. For the example under consideration, at the installation of the water supply to 2 floor, the pressure of the pressure will be 7 + 20/10 + 4 \u003d 13 meters, where 4 is the approximate height of the second floor of the building.
Important: Conducting a similar calculation, to choose the unit's pressure is always needed with a reserve, as there are certain losses in the pipeline, which depend on the specific water supply scheme.
One of the popular representatives of vibration units is. The main advantages are highly high reliability at a minimum price.
With a small depth of the water source, you can use ready-made surface pumps.
And if you want to learn about with plastic pipes, then we have a separate article on this topic.
When the model is selected, additional parameters are important to help produce the necessary calculations.
Static levels are the depth of the mine and the level of the water mirror position when the well filled. Both quantities are easily measured using a twine with a load: the depth of the well - until the bottom of the bottom is achieved, the level of the mirror is to a characteristic burst when the cargo goes into the water.
The dynamic level of water in the well indicates the intensity of the fluid arrival in the mine. This magnitude is also called the debit of the source. It is possible to determine the dynamic level, pumping water from the mine. When, despite the work of the pump, water will cease to decrease - the dynamic level of the well will be achieved. In sources with a large dynamic level, when pumping out the position of the water mirror changes slightly.
The diameter (or length of the side of the square section) of the mine is necessary to calculate the volume.
The safety of the pump and the efficiency of water supply helps to provide additional equipment.
Which pump to buy for the well, it is necessary to solve individually, but it is preferable to choose it from the number of models of known brands.
The submersible type of well pumps is used in the country most often, although it is not the only option. Considering that mainly the depth of the wells in the plots does not exceed 8 - 10 m (with a greater magnitude of this parameter, the mines are economically more cost-effective), it does not make sense to consider other varieties. The complexity is that even submersible models are different, and sometimes arise difficulties with the choice better option For country applications. So we will deal with this more.
We will focus on the fact that a large family does not live on the site, and the owners come to the cottage only in the season (the most common option).
In this case, you need to pay attention to vibration pumps. Their main plus is ease of operation and unpretentiousness. For use during the spring-summer-early autumn - the optimal solution, especially since they are cheaper than analogs. Centrifugal pumps are significantly more productive, but have a number of significant drawbacks. Therefore, their installation and operation (including repair) is more expensive. For a small dacha, it does not make sense.
Exact calculations can only be performed by a professional. Many factors are taken into account - the total length of the pipes (and their cross section), the number of water parsing points, the depth of immersion of the pump and a number of others. Based on this, focus on such indicators as pressure and power (by the way, they are interrelated).
With regard to a small dacha in several acres, on which the owners appear only periodically (for watering and care for the site) so as not to "download the reader with formulas and coefficients, you can give such general Recommendation - enough model with a capacity of 1.2 (± 0.2) kW. Although sometimes quite enough and 0.3. It is necessary to take into account the specifics of watering, then it will become more clear what to buy.
Perhaps this is all the features of the choice, if the acquisition of a small size pump without constant living on it is implied. Otherwise, the reader should be familiar with the materials on the issues towards the water supply system. This is a separate and quite volumetric topic.
Before going for the purchase, it is necessary to clearly understand some moments, since the seller is absolutely not informed, what a well on the well and how it is used. What to take into account?
Products are presented on the market from different manufacturers. For example, the models under the "ESPA" brand have proven well (the head office is housed in Spain). A lot and other high-quality import pumps (for example, "Wilo", "Kerself").
However, you can advise to pay attention to domestic products. And not only from the sense of patriotism, but also from a practical point of view.
Based on this, consider several domestic pumps.
* Prices are indicated for the Moscow region.
Produced in several modifications. The "BCPE 0.5" series with a power of 0.65 kW creates a pressure of up to 40 m with a performance of 1.8 m³ / h. For the simultaneous, "fan" watering area is clearly not suitable, but by alternate irrigation of the territory segments will provide. In principle, the majority of dachnikov just this way and organizes work, opening / closing the corresponding valves on the pipes.
Price - from 10 050 rubles.
A series "Vytomet - 150/30" is more powerful - 0.9 kW. When pressure up to 30 m, the performance of about 150 l / min. It is capable of working in tinted water (fractions - no more than 2.5 mm).
Price - from 8 165 rubles.
The cheapest, and therefore is a popular submersible type pump among dacnons. For example, the model of the "P 1500" series has a lower nozzle of the fence (up to 10 m). Power - 0.24 kW; 25 l / min; Immersion depth - up to 3 m. Weight - 3.2 kg. Unpretentious in operation and for a small cottage, taking into account the cost, the optimal option.
Price - from 1 510 rubles.
Well, what exactly to buy, decide for yourself, dear reader. The choice is now huge.
The pump is a hydraulic machine. It converts mechanical energy - muscular or engine, into the energy of fluid or gas flow (in our case - water). Thanks to this energy, we can raise water from the depths, move it to a certain distance, including vertically, and set the duct speed.
The first pump, a well-known scientist, invented an ancient Greek engineer and mathematician Ktezibius, who lived in the 300 years before. e. Ktezibiy, considered by the "father" of hydraulics and pneumatics, described general principlewhich is based on the effect of many subsequent pumps developed by subsequently: plunger, impeller, rotor, impeller and others. But I'll go to the practical side - what to choose a pump for a well in the country?
Before you go for the purchase, determine the submersible or surface pump suits you. And here you have to remember physics lessons.
Therefore, the surface pump will not be able to raise water from depth, greater than 10.3 m. It is for this height that the water is rising in the tube, displaced by the pressure of the atmosphere on the water mirror in the well.
Also, do not forget that 10.3 m is the value just for ideal conditions (as in the school task). In reality, the depth with which the pump can raise water, less: if the well is located above sea level, this value decreases. Also on it affects the losses for friction and so on.
Therefore, manufacturers of pumps are talking about 9 m, which in practice are reduced even more - meters to 7. That is, it is possible to confidently say that the pump will raise water from 5 m without a reduction in pressure. If, of course, your cottage is not in the mountains.
Pumping equipment placed in Kesson. Photos from BKankor.ru
Another option is to place the pump in the caisson next to the well whose depth compensates for "extra" meters. The same way works if the water you need for water supply at home and is, which will serve as caisson. True, laying the caisson and the basement deeper than 4 meters may be inappropriate.
If the water source is below 7 m, then to some extent (there is still a limit) the problem will solve another physical law - Bernoulli law. On his principle works ejector - A device that is supplied to a water or gas pump in the pump tube having a greater pressure. It enhances the power and the main risen jet.
Bernoulli law. Photos from Met-All.org
The pumping stations equipped with an ejector are capable of lifting water from a depth of 25-40 m. Consider that the PDA of the pump with an ejector will be low.
If the water in the well is even deeper - then you are in the department where the submersible pumps sell. Deciding with the type of unit (superficial or submersible), you can move to other parameters of the selection.
In many sources, they offer to choose the performance of the pump, calculating the maximum flow of water, that is, taking into account the simultaneous inclusion of all water consumers in the house: shells, baths, shower, washing and dishwashers. Approximately approximate costs of consumption - 1000 liters per person per hour. I do not know how to pour water cube per hour, given the average duct speed in the usual mixer 4 l per minute.
Pump performance- The amount of water pumped per unit of time
The tables offered for calculate the table are compiled for selection of pumping equipment for large objects - manufacturing enterprises, Apartment houses. In my opinion, such values \u200b\u200bare needed in order to explain why pumps with performance with performance, for example, 4500 l / h. Such powerful aggregates are relevant for high-performance wells. The owners of the wells are primarily to navigate their own water consumption, but on their water source, because the influx in the well per hour can be less than the performance of the pump.
In this case, you should arrange a system with a water battery - a capacity, the volume of which is obviously exceeds the daily consumption of water in the house. Then the pump with a small productivity, according to the debit of the well, will fill the capacity from which the water will be supplied to the cranes in the house.
The ratio of pressure and compensation of the pump. Photos from the site c-o-k.ru/
Pump pressure is made to measure in meters. And during calculations, only the vertical direction of movement of water is taken into account, that is, at what height the vertical pipe attached to the outlet of the pump can be filled.
Since the user is interested not only in the delivery of water to the maximum high point, but also in this point the mixer worked, then the pressure is also interesting and pressure. In standard water supply systems, the operating pressure from 1.5 to 3 atmospheres. It is spent on overcoming hydraulic resistance: friction of water about the walls of the pipes, turning the turns, horizontal movement. And also on the creation of a jet of a certain power out of the winding of the mixer - who will like to wash under the shower, from which water is barely so much?
The working pressure in the plumbing depends on the pressure of the pump, and therefore, from the height of the lifting. Every 10 m lifting is equal to 1 atmosphere. That is, if in the characteristic of the pump it is indicated that the maximum height of the rise is 50 m, which means that the pressure of 5 atmospheres will be created at the outlet of the pump, or water can rise to a height of 50 m, or the 3 atmospheres in the system will be on Height of 20 m.
The useful effect performed by the pump depends not only on the aggregate itself, but also from the entire hydraulic system: a large number of turns, narrowings and extensions of the pipeline increases the vortex losses, which in turn reduces the effectiveness of pumping equipment. In general, the efficiency of the immersion unit is higher than superficial: the pump, which is in the water, does not need to spend the forces to suck water.
That's all important parameters Pump selection. And with the brand and cost each can decide on their own.
Pump submersible for WSN 1000D 1000W, 40m Max, 5.5m3 / H Max, 5.5m3 / H Max, 35.0 M MAX. J1000Wsnd Waterstry.
Art. J1000wsnd.
Multistage submersible centrifugal pumps of the WSN-D series are designed for pumping clean rain, drainage and soil waternot containing abrasive substances and long-fiber inclusions from wells, accumulative tanks, tanks, etc.
The pump is equipped with a modern multistage hydraulic system With closed impellers (4pcs.) And passes small impurities up to 1.0 mm.
Purpose:
For pumping clean or slightly contaminated, chemically non-aggressive water from wells, shallow wells with an inner diameter of at least 50 cm, as well as surface water supply sources.
Scope:
With the pump configuration, the pressure regulator (relay, press control) and pressure membrane Baku It turns out the optimal solution for water supply to the pressure water supply system in the household sector.
Recommended for watering system in agriculture and gardening.
WSN-D is ideal for wells, reservoirs for the storage of rainwater, cumulative tanks, pools, clean ponds, etc.
If necessary, the pump can be used to complete the detection of new flooded areas.
Benefits:
low weight and dimensions due to the use of composite materials and sheet stainless steel;
high sufficient pressure of the pump;
Built-in heavy protection electric motor;
Installation is allowed both in vertical and horizontal positions.
The upper arrangement of the pressure pipe allows to operate the electric pump even with incomplete immersion, because The cooling of the electric motor at the same time is provided by the flow of a pumped liquid, washing the motor inside the casing.
The pump is equipped with a float switch, which provides reliable protection against dry stroke, and also allows automatic restart after restoring the water level in the source.
Pump well IDROGO M40 / 08 N07RN-F G 1 1/4 0.6 KW ~ 3X400V 50HZ with rubber cable 20 m Art. 1582030004 EBARA.
Art. 1582030004.
5 "Submersible monoblock well pumps IDROGO (EBARA, Italy) from AISI 304 stainless steel are used in water supply and irrigation systems. These series pumps are ideal pumps for wells, as they provide water lift with depths that are not available to centrifugal ejector pumps. Due to the cooling The engine is pumped with water pump, have a better cooling compared to borehole pumps, which minimizes the possibility of overheating during long-term continuous operation. Unlike borehole pumpsless sensitive to solid particles contained in water.
Application:
Innings clean water From wells, tanks and tanks.
Household water supply systems.
Garden irrigation.
Carwash.
Improving general purpose pressure.
Technical data:
Equipped with a double end seal with an intermediate oil chamber.
Supplied by S. power cable 20 M-type H07RN-F (5 m for IDROGO 40/06 M model).
Single-phase version with a float by order (version "A").
There is a three-phase version 230 V ± 10% 50 Hz.
Installation: in a horizontal or vertical position.
Technical data of the pump:
Maximum operating pressure: 10 bar.
Max. Fluid temperature: 40 ° C.
With a 20-meter cable Max. Immersion depth (version "A") 10 m.
With a 20-meter cable Max. Immersion depth of 17 m.
With a 5-meter cable Max. Immersion depth 2 m.
The maximum passage of solid particles is 2.5 mm.
Output connection G1¼.
Engine technical data:
Asynchronous self-delayed 2-humid engine cooled by pumped liquid.
Class of insulation F.
IP68 electrical safety class.
Single-phase voltage 230 V ± 10% 50 Hz, three-phase voltage 230 V ± 10% 50 Hz, three-phase voltage 400 V ± 10% 50 Hz
Constrator and built-in thermal protection with automatic restarting for a single-phase motor.
For three-phase versions, thermal protection must be provided by the consumer.
Materials:
External casing, engine cover, bottom of the end seal, filter and stop ring made of AISI 304 stainless steel.
Impeller, diffuser and PPE + PS simple fiberglass space.
AISI 431 stainless steel shaft.
Top end sealing (engine side) from graphite / ceramics / NBR and lower (from the pump side) from SiC / graphite / NBR.
Pump submersible well SB 3-45 M (without float) ART. 97686704 Grundfos.
Art. 97686704.
Features and advantages
Pump submersible well SB 3-35 M (without float) art. 97686700 Grundfos.
Art. 97686700.
Grundfos SB is a submersible well pump for water supply systems. It is used for effective pumping of pure water from wells and rain cumulative tanks. The well pump is available in two main versions:
with integrated mesh filter (perforation 1 mm);
With side entrance, which includes a flexible suction hose and floating mesh filter (perforation of 1 mm).
In both performances, the SB pump, GRANDFOS can be supplied with a float switch, and without it. The float switch can be used to work in automatic mode or to protect against dry stroke.
Versions of the pump (model)
Built-in mesh filter with float switch A
Built-in mesh filter without float switch M
Float Filter with Float Switch AV
Features and advantages
Silent work. In the submerged state, the SB pump works silently and therefore it is a profitable alternative not to submersible pumps.
High reliability. The SB conductive pump is made of composite materials and corrosion resistant stainless steel. In addition, the pump is equipped with a stainless steel filter, which does not allow ingestion of large particles.
Built-in protection. The pump is equipped with protection against thermal overload.
Float mesh filter. The model with a float mesh filter sucks water just below the surface, where water is clean and does not contain solid particles.
The SB series pump is a submersible auxiliary pump for pure water pumping, in particular, suitable for pumping rainwater. The pump comes in two main versions:
with a mesh filter on the suction line of the pump (the grid with the diameter of the holes is 1 mm);
With a lateral suction line, which includes a suction tube with a floating mesh filter (mesh with a hole diameter of 1 mm).
If the distance from the wall of the tank (well) to the pump is more than 1.5 meters, it is recommended to use a model with a side input.
If the distance from the wall of the tank (well) to the pump is less than 1.5 meters, a model with a mesh filter is recommended.
Installation features:
Maximum immersion depth:
SBA 3-35 - 10m;
SBA 3-45 - 10m.
Maximum height difference from the pump to the hydraulicock:
SBA 3-35 - 13m;
SBA 3-45 - 20m.
The minimum free length of the float cable from the float to the point of fixation: 10-18 cm.
Submersible well pump SB 3-35 AW (with float, suction hose, filter) art. 97686703 Grundfos.
Art. 97686703.
Grundfos SB is a submersible well pump for water supply systems. It is used for effective pumping of pure water from wells and rain cumulative tanks. The well pump is available in two main versions:
with integrated mesh filter (perforation 1 mm);
With side entrance, which includes a flexible suction hose and floating mesh filter (perforation of 1 mm).
In both performances, the SB pump, GRANDFOS can be supplied with a float switch, and without it. The float switch can be used to work in automatic mode or to protect against dry stroke.
Versions of the pump (model)
Built-in mesh filter with float switch A
Built-in mesh filter without float switch M
Float Filter with Float Switch AV
Features and advantages
Silent work. In the submerged state, the SB pump works silently and therefore it is a profitable alternative not to submersible pumps.
High reliability. The SB conductive pump is made of composite materials and corrosion resistant stainless steel. In addition, the pump is equipped with a stainless steel filter, which does not allow ingestion of large particles.
Built-in protection. The pump is equipped with protection against thermal overload.
Float mesh filter. The model with a float mesh filter sucks water just below the surface, where water is clean and does not contain solid particles.
The SB series pump is a submersible auxiliary pump for pure water pumping, in particular, suitable for pumping rainwater. The pump comes in two main versions:
with a mesh filter on the suction line of the pump (the grid with the diameter of the holes is 1 mm);
With a lateral suction line, which includes a suction tube with a floating mesh filter (mesh with a hole diameter of 1 mm).
If the distance from the wall of the tank (well) to the pump is more than 1.5 meters, it is recommended to use a model with a side input.
If the distance from the wall of the tank (well) to the pump is less than 1.5 meters, a model with a mesh filter is recommended.
The surface pump is located next to the well or in the house, and the submersible falls into the well. At well models, the hole for suction is located at the bottom, so the pump is working, even if not completely immersed in water. The float switch that triggered when the water level decreases, protects from the work "dry". It is recommended to withstand a distance of one meter from the pump to the bottom of the well, no less. It protects the pump from the suction of the snack and sand from the bottom.
Pumps vary by method of functioning:
Pump models differ in pressure, functionality, performance.
Water lifting height for centrifugal and vibratory pumps - up to 60-70 meters. The lineup Vibration type includes pumps with a capacity of up to 1000 liters per hour, centrifugal can work ten times more productious.
Advantages of the vibration pump - simple design and energy efficiency. At the same power, the performance is higher at the vibration model than at the centrifugal.
Disadvantage: Vibration leads in motion soil. Sand bottom rises with long-term operation of such a pump. The buildings may suffer from the vibration of the soil.
Vibrating pumps are cheaper than centrifugal, with an equal power. For periodic use, not too long, buyers choose a vibration pump. If you download water all the way, then take a centrifugal, although it is more expensive.
Water should be lifted to the surface and deliver to the place of consumption. Therefore, pumps for ten meters are chosen with a margin in the height of water lifting.
Models of vibratory pumps intended for lifting water to a height of more than 10 meters are small. Buyers prefer to supply water from ten meters well well pumps centrifugal
Type.
The power of vibration pumps is 250-300 W, and centrifugal
develop the power of 0.5-2 kW.
The capacity of the vibration pump with a capacity of 300 W will be 16 l / min, and the performance of the centrifugal, with a capacity of 1.1 kW - 150 l / min.
