How to connect a surface pump. Surface pump installation technology: connection to water supply and irrigation systems. Where is the pump placed

When installing equipment for wells, pumps are used various types. Most often used submersible pumps, but there are a number of situations where superficial ones are most preferred. Their installation differs from the installation of a conventional submersible pump, but they do not need to be immersed in water, which means that the body is not subjected to such negative influences. Maintenance of such equipment is much easier and faster, if necessary, it is easy to check and adjust the pump.

Surface pump, which is used for wells and wells, can be conditionally divided into several varieties. There are centrifugal and vortex, which are used most often. The first ones are designed to raise water from wells and shallow wells from 6 m to 9 m. Vortex ones are used for uninterrupted water supply with increasing pressure. Centrifugal ones are less expensive, they are easier to install. They cannot be used for deep wells. If it is planned to install an artesian well, then the equipment must be purchased special, since the depth is large, and not every unit will cope with such work.

Pros and cons of surface pumps

If a shallow well is drilled at the site, then a surface pump is suitable for it. This equipment has many advantages over deep pumps. Among the undeniable advantages should be noted:

1. The dimensions of the equipment are small, such a unit will not take up much space. There is no need to build a large and heavy foundation, and the size of the caisson can be small.
2. Surface pumps are cheaper, for installation there is no need to use special equipment or tools. Control automatic units are purchased in already ready-made, their cost is not too high.
3. The service life, according to the instructions of the manufacturers, is more than 5 years, but the equipment pays off already in 2 years, which greatly distinguishes it from submersible pumps that are used in a more aggressive environment.
4. Installation of the device is simple, just connect the pipes and cables, and then check the operation. Together with the surface equipment, an accumulator tank is used, it contains a supply of water.
5. The pressure, flow rate and other characteristics are excellent, the equipment provides uninterrupted water supply under any conditions.
6. Electricity consumption is minimal, such equipment can be called economical.
7. You can use a surface pump for a well or a shallow well, and this is beneficial for a summer cottage. The water column can have a minimum height of only 70-80 cm, for other models such working conditions are unacceptable.
8. During operation of the equipment, there is no contact between the power cable and water, which is so important for ensuring safety.
9. If the mirror is lowered during water intake, air pumping starts, then the automation stops the device. No damage will be caused to the equipment if the pump runs without water for some time.
10. The repair is simple, there is no need to lift it to the surface, parts are easily replaced.

There are also disadvantages of installing equipment on the surface:

1. The well may only have a shallow depth.
2. There is a need to install special filtering equipment, otherwise the pump will fail.
3. Before turning on the pump, it must be filled with water.
4. Observed during operation loud noise, which can interfere with those living in the house.
5. The equipment can only be used in an insulated building; the caisson must be thermally insulated.

How to choose a surface pump for home?

In order for the pumping unit to work correctly and for a long time, it is necessary to approach the choice of equipment responsibly.

Usually, for a house with shallow wells and wells, it is surface pumps that are used, but their operation is extremely simple, it is constantly supported by automation, which facilitates maintenance.

The choice of the pump is based on what exactly the water will be used for. For example, the water consumption for a garden or vegetable garden, a greenhouse will be one, and for a house's water supply it will be completely different.

When choosing, you must be guided by the following data:

1. If a family of 3-4 people permanently lives in the house, it is best to use pumps whose productivity is approximately 3 cubic meters of water per hour. This is quite enough to supply the house, to provide all the needs of the family in water. If water supply to the greenhouse and garden is required, then the consumption will almost double.
2. For apartment building or a town house, it is necessary to use surface pumps with a capacity of 5 cubic meters, but based on 2 families. For 4 families, equipment is used, the productivity of which is already from 6-7 cubic meters.

Installation of a surface pump

The installation of a surface pump is not complicated, it consists in the fact that a place for installation is selected on the surface, after which all pipes and communications are connected. It is not at all necessary to call expensive teams to install the device. But have experience with plumbing equipment and pumps are necessary, since device configuration will be required.

Installation of surface equipment is carried out as follows:

1. First you need to choose a place to install the equipment, it is best to do this in the caisson of the well or in a specially delivered structure that is mounted near the wells. Thermal insulation of the caisson or house is mandatory.
2. It is necessary to mount the surface pump on the foundation. First, the concrete base is poured, and special metal fastening studs will be mounted into it. This helps to neutralize the load during motor vibration, the pump life will be significantly increased. It is important to protect the equipment from such loads, as they not only make the mechanism unusable, but also contribute to damage to other automatic equipment.
3. Systems automatic control are mandatory, since it is with their help that the work and control of the pump will be carried out. Such systems are selected individually, today there is a wide variety of them on the market. Blocks are best taken ready-made, they are fully balanced. You can also assemble such a block with your own hands, but if there is no experience in this, then it is better not to risk it. The control unit includes sensors and relays that control the productivity of the well, the level of the surface water film, and so on. If suddenly the water supply stops, then such relays stop the operation of the pump, give a special signal.
4. Installation further involves connecting the nozzle of the device to a special supply water pipe, which is lowered into the wellbore or well. It is necessary to install on the pipeline check valve. It is he who will prevent the overflow and discharge of water when the pump is turned off.
5. Then a special hydraulic accumulator is installed, i.e., an expansion tank. Before connecting it, you must immediately check the pressure that is observed in the chamber. It must fully comply with that declared by the manufacturer for operating conditions. If the pressure air chamber does not match the required, then it is necessary to adjust it.
6. After that you need to connect electrical cables for the pump. It is important to immediately provide a dedicated line for the supply of electricity, many experts advise focusing on a three-phase system.

How does the equipment function?

The pump is filled with water from a well or well (this is mandatory), after which it turns on. Need to be filled expansion tank water to the level that is set, then, automatic system stop the pump itself.

When the water in the tank runs out, that is, it is completely used up for the needs of the house or garden, the automatic unit will turn on the pump. You can set a trial mode to see exactly how the surface pump behaves, if there are any problems.

If a well or a well is used for a summer cottage, the depth of which is relatively small, then it is the surface pump that will the best way out out of the situation. Its cost is acceptable, and installation is quite simple, since the device is placed on the surface. Caring for the device does not require special actions, all the work is done by automation.

Most Owners country houses and dachas equip their household plots with a well or a well, which makes it possible to always have the required amount of water available both for domestic needs and for watering green spaces. In the event that the depth of the source does not exceed 10 meters, pumps are used to equip it. surface type. Various Models such devices offered by modern industry differ from each other both in design and technical characteristics.

It is very important to know how to select surface pumps for specific applications in order to achieve the required efficiency. this equipment. In addition, in order for the surface type pump to function without emergency situations long time, it is necessary to put it into operation correctly, as well as to ensure its regular maintenance.

Surface pumps are perhaps the most popular variety equipment, problem solving water supply garden plot and country house

What are surface pumps

Surface pumps during operation are not immersed in the pumped liquid medium - they are located on the surface of the earth, in close proximity to the water supply source. Most often pumping devices This type is used for pumping water from well sources, since the depth from which they can effectively pump out a liquid medium is no more than 10 meters.

The surface pump is also used for pumping water from basement or cellar at home, as well as for pumping liquid medium from wells located on quicksand. Surface water pumps are easy to operate. To carry out maintenance of such devices, there is no need to remove them from the pumped medium. They are also distinguished by their versatility: they are equally successfully equipped with water supply and sanitation systems, as well as drainage systems and systems with the help of which watering of green plantings on a personal plot is carried out.

Design features and varieties

The basis of the design of any surface water pump is three nodes:

1. power unit, the basis of which is a drive motor;
2. a pressure unit, through which a vacuum and pressure zone is created in the working chamber of the device;
3. block, with the help of which the power and delivery units of the hydraulic machine are controlled.

In my own way design and the principle of operation, a surface water pump may refer to devices of one of the following types:

• vortex type equipment;
• centrifugal surface pump;
• pumping units equipped with an external ejector.

The vortex type water surface pump is an inexpensive and compact hydraulic machine that is able to generate a water flow with a pressure higher than that of centrifugal type models. Meanwhile, an inexpensive surface vortex-type pump has a low efficiency (about 45%), devices of this type cannot be used for pumping a liquid medium, which contains a large number of sand or other solid insoluble inclusions. The basis of the design of surface pumps of this type is the impeller, equipped with large quantity blades, which form the flow of the pumped liquid medium with the required characteristics.

A surface centrifugal pump is a more expensive device that effectively copes with pumping a liquid medium, in the flow of which there are air bubbles and plugs that can lead to the formation of pulsating processes. Despite the fact that pumping devices of this type are characterized by a fairly high efficiency, they also cannot cope with pumping liquid media characterized by a high level of pollution. The main working body of centrifugal surface pumps is the impeller, the rotation of which is transmitted by means of a rotor connected to the drive motor shaft.

A surface pump for a well or a well, equipped with an external ejector, is practically not used today, since it was replaced by a submersible type pump, which is characterized by a higher performance.

Centrifugal pumping equipment

Surface (external) centrifugal pumps, as mentioned above, pump a liquid medium by rotating an impeller equipped with special blades. The blades of this wheel, driven by an electric motor shaft, create a vacuum in the central part of the working chamber, which ensures the suction of a liquid medium into it through the inlet pipe, and an increase in the pressure of the pumped liquid at the chamber walls, which contributes to the expulsion of water into the pressure line.

Surface pumps of centrifugal type are capable of pumping a sufficiently large volume of liquid per unit time, but are not able to form a large head of the pumped liquid medium.

Most often, surface centrifugal pumps, due to the above characteristics, are used to equip irrigation systems for green spaces. Another critical disadvantage of pumping devices of this type is that they make a lot of noise during operation.

Vortex pumping equipment

Surface pumps, belonging to the category of vortex, are used mainly for wells and wells of shallow depth. A surface electric pump of this type is capable of creating the strongest possible pressure of the pumped liquid (compared to other external pumping devices). This is ensured by the fact that the liquid medium sucked from the well or well into the internal working chamber of the hydraulic machine is subjected to turbulence, which significantly increases the energy of the flow.

Surface vortex-type pumps, which are based on an impeller and helical grooves on the walls of the internal working chamber, although they are characterized by a lower suction capacity than models of the centrifugal category, are able to form a fluid flow moving through the pipeline system under significant pressure.

Advantages and disadvantages of external pumps

The most significant advantages of surface pumps for a private house or cottage are:

1. compact size and light weight;
2. affordable cost (when compared with the price of pumping devices of other types);
3. ease of installation, which can be performed without even having special knowledge, skills and experience;
4. ease of operation and Maintenance;
5. the ability to work with a water layer, the thickness of which does not exceed 60 cm (if the layer of the liquid medium in the well or well is characterized by such a small thickness, then the use of submersible pumps is not possible);
6. air cooling, not liquid;
7. the possibility of forming a flow of a liquid medium, characterized by a significant pressure;
8. enough high efficiency;
9. no need for power supply directly to the water intake area;
10. high reliability and long service life;
11. high stability operating parameters even if there are air pockets in the serviced piping system.

Naturally, pumping devices installed on the surface of the earth have a number of disadvantages, including:

1. sufficiently high sensitivity to the presence in the composition of the pumped liquid medium various pollution;
2. restrictions on the depth of a well or well (this parameter cannot exceed 9–10 meters);
3. a sharp decline efficiency and reliability when used in conjunction with an external ejector;
4. high level noise (up to 50 decibels);
5. the need to fill the pressure line with water before starting work.

When choosing a surface pump for a summer residence or a country house, you should first decide on the main tasks for which such equipment is purchased. When choosing a pump for outdoor operation, you should focus on a number of basic technical parameters such a device.

For garden irrigation

If a surface-type pump is planned to be used in order to irrigate country cottage area or a plot of a country house, then the main attention should be paid to the following parameters of the selected equipment.

• Productivity, measured by the volume of water that the device is able to pump per unit of time. In order for the garden pump to be able to provide high-quality watering of green spaces, it is enough that its productivity is about one cubic meter water pumped per hour of operation.
• The depth of a well or well, with bark, a garden pump will pump out water. You should also take into account the ratio "vertical - horizontal", which should be 1:4. So, if a surface pump is used to pump water from a depth of two meters, it must be eight meters away from the water supply source. In the event that the total length of the vertical and horizontal parts of the pipeline is more than 12 meters, pipes with an internal section increased by 1/4 inch should be used to equip such a system.
• When choosing the pressure value that a surface-type pump can provide, you should focus on the most distant point of water intake.

For home water supply

Surface-type pumps are also successfully used to ensure the operation of autonomous systems water supply for residential buildings. When choosing a surface pump, which is planned to be used to solve such a problem, one should be guided by the total volume of water consumption by all points of water intake, as well as by the pressure of the liquid flow, which must be provided at such points. To select a surface pump according to these parameters, you can focus on the following data.

• To provide water to a house in which 4 people live, a pump is needed, the productivity of which is 3 m 3 / hour.
• To provide water to a house in which two families live, a pump is needed, the productivity of which is 5 m 3 / hour.
• A four-family house needs a pump with a capacity of 6 m 3 /hour.
• To provide water household plot, the performance of the selected surface pump should be increased by a value equal to 1 m 3 / hour.

If the surface type pump is operated in regions where dry periods are not uncommon, its performance should be increased by another 40-50%.

The lack of running water and sewerage is what can poison life in any, even the most beloved dacha. The endless dragging of buckets of water in the end can tire anyone, even if the well is a few meters from the house. However, to solve this problem is simple - you just need to buy a water pump.

All water pumps are divided according to the installation method into two groups: submersible and surface. Submersible pumps will be discussed in a separate article, and today we will talk about what a surface pump is, how it works, what are its disadvantages and advantages.

What is a surface pump

A surface pump is a pump that does not require immersion in water to operate. The pump is placed on the surface, and a water intake hose is lowered into the water. The advantage of such a device is that the surface pump is easy to maintain. Its main disadvantage is that the surface pump is not able to lift water from a great depth. The maximum depth from which a surface pump can pump water is only about 10 meters. This means that it is not suitable for drawing water from a deep well or well. For these tasks, there are submersible pumps. A surface pump is perfect for watering a garden or pumping water out of a basement.

Surface pumps can be divided into two types:

1. Vortex surface pumps have a very small suction depth. Most often, such devices are not used for water intake, but for regulating the level of pressure in the water supply.
2. Centrifugal surface pumps. Their other name is self-priming surface pumps. Such pumps have a greater depth of water intake than vortex pumps, which means they are quite suitable for taking drinking water from a shallow well or water for irrigation from a pond.

Speaking about surface pumps, I would like to say a few words about pumping stations. The pumping station, in addition to the pump, includes a control unit and a pressure accumulator. Some models also include a device that protects the station from overheating. An important component of the pumping station is a hydraulic accumulator. The pumping station works according to the following principle: the pump supplies water to the accumulator, then the pump is turned off and water from the accumulator is used. When the water in the accumulator drops to a fixed level, the pump is switched on again.

How does a surface pump work?

A centrifugal surface pump is a device that works due to the wheels located inside it, forcing pressure. The wheels rotate due to the working shaft located in the housing. The shaft, in turn, is supported by bearings. Thus, the water at the inlet to the centrifugal surface pump and at the outlet of it has various speed and pressure.

Vortex surface pumps are similar in design to centrifugal pumps. In the casing of the centrifugal pump there is an axis on which the impeller is mounted. On the wheel are special blades, which transmit energy from the rotating axis to the water.

If you are going to purchase a surface pump, then it will be useful for you to know what characteristics of the unit you should pay attention to so as not to be mistaken with the choice. First, decide for what purpose you want to buy a surface pump. For simple garden watering, you can purchase a surface pump with a small capacity. If you are going to organize country house individual plumbing system, then the pump performance should be high. For watering the garden, a capacity of 1 m3 / hour is sufficient.

When buying, pay attention to such a characteristic of the pump as suction depth. On average, the maximum suction depth of a surface pump is 8 meters. For a surface pump, the vertical-horizontal ratio is 1:4. That is, 8 meters vertically is 32 meters horizontally. Knowing this ratio makes it possible to calculate what maximum suction depth is required to use the pump in your area.

Decide also on the maximum pressure of the surface pump. To do this, you need to calculate the distance from the place where the surface pump will be located to the most remote point of your site where water supply will be required.

And one more nuance. If you know that the voltage in the network at your dacha is low, then buy a pump more powerful than required by the parameters listed above. Otherwise, at a time when the mains voltage is low, the pump performance may be lower than what you need.

Surface Pump Manufacturers

Al-co surface pumps are an example of traditional German quality. The products of the Al-co engineering concern have been pleasing consumers around the world for 75 years. Al-co garden surface pumps easily perform all the pump functions required for gardening. They are suitable for watering plants, pumping rainwater and water from swimming pools.

Wilo is the oldest pump company in Europe. Since 1928, Wilo pumps have been used in both industrial and domestic applications. German Wilo pumps is a guarantor High Quality and uninterrupted operation. The proof of this is the fact that Wilo products are used for firefighting. Wilo household pumps are perfect for watering the garden and pumping rainwater.

The Danish company Grundfos is engaged in the production pumping equipment for over 30 years. Surface pumps from Grundfos are distinguished by high reliability, quietness and reduced energy consumption. Household surface pumps and surface pumping stations provide your garden and vegetable garden with water for irrigation.

The Italian company Awelco, founded more than 20 years ago, is engaged in the production of high-power household pumps. Awelco equipment is produced according to the most modern technologies under constant control at all stages of production, which is why Awelco pumps are known for their durability. Awelco surface pumps will delight you as impeccable quality and at an affordable price.

Gilex - Russian company producing pumps since 1993. Conducted marketing research and proximity to the Russian consumer allow the company "Dzhileks" to produce exactly the products that are most in demand in Russia. Surface pumps of the company "Dzhileks" are reliable durable equipment, easy to maintain and having an attractive price.

Pumps are used to supply water to the house or water the garden. There are they different types and designs, and each of them finds its own scope. If you need inexpensive and reliable device for pumping water from a well, a deck or some kind of container, pay attention to a self-priming pump. These are relatively inexpensive devices that are installed on the surface, they can pump water from a fairly decent depth - 8-9 m. If necessary, the models are supplemented with ejectors, then the suction depth increases to 20-35 m.

Self-priming pumps: device and types

Self-priming pumps pump water from a depth of 8-9 meters, while they themselves are on the surface. Water rises due to the fact that in the central part of the body, due to the movement of wheels with blades, a low pressure area is created. In an effort to fill it, the water rises. So it turns out that the pump sucks water.

Like any other pump, a self-priming one consists of an engine and a working chamber in which the discharge mechanism is located. The shafts of the pump and motor are connected through a coupling, the reliability of the connection and tightness is determined by the type of seal. There are two types of seals:

• stuffing box - cheaper and less reliable;
• end seal - more reliable, but expensive.

There are models self-priming pumps with magnetic couplings. They do not require sealing, since they do not have through connections. This is by far the most robust construction but also the most expensive.

Structure and principle of operation

According to the mode of action, a self-priming pump can be vortex and centrifugal. In both, the key link is the impeller, only it has a different structure and is installed in a housing of a different handicap. This changes the principle of operation.

Centrifugal

Centrifugal self-priming pumps have an interesting structure of the working chamber - in the form of a snail. Impellers are fixed in the center of the body. There can be one wheel, then the pump is called single-stage, there can be several - a multi-stage design. Single-stage always operate at the same power, multi-stage can change performance depending on the conditions, respectively, they are more economical (less energy consumption).

The main working element in this design is a wheel with blades. The blades are bent into reverse direction with respect to wheel movement. When moving, they seem to push the water, squeezing it to the walls of the case. This phenomenon is called centrifugal force, and the area between the blades and the wall is called the "diffuser". So, the impeller moves, creating an area on the periphery high blood pressure and pushing the water towards the outlet.

At the same time, a zone of reduced pressure is formed in the center of the impeller. Water is sucked into it from the supply pipeline (suction line). In the figure above, incoming water is indicated by yellow arrows. Then it is pushed by the impeller to the walls and rises up due to centrifugal force. This process is constant and endless, repeating as long as the shaft is spinning.

Their disadvantage is connected with the principle of operation of centrifugal pumps: the impeller cannot create centrifugal force from the air, therefore, the housing is filled with water before operation. Since pumps often operate in intermittent mode, so that water does not flow out of the housing when stopped, a check valve is installed on the suction pipe. These are the features of the operation of centrifugal self-priming pumps. If the check valve (it must be mandatory) is at the bottom of the supply pipeline, the entire pipeline has to be filled, and this will require more than one liter.

Vortex

The vortex self-priming pump differs in the structure of the casing and the impeller. The impeller is a disk with short radial baffles located at the edges. It's called an impeller.

The housing is made in such a way that it quite tightly covers the “flat” part of the impeller, and a significant lateral clearance remains in the baffle area. When the impeller rotates, the water is carried away by the bridges. Due to the action of centrifugal force, it is pressed against the walls, but after some distance it again falls into the zone of action of the partitions, receiving an additional portion of energy. Thus, in the gaps, it also twists into vortices. It turns out a double vortex flow, which gave the name to the equipment.

Due to the peculiarities of work, vortex pumps can create pressure 3-7 times more than centrifugal ones (with the same wheel sizes and rotation speed). They are ideal when low flow and high pressure are required. Another plus is that they can pump a mixture of water and air, sometimes they even create a vacuum if they are filled only with air. This makes it easier to start it up - no need to fill the chamber with water or a small amount is enough. Flaw vortex pumps- low efficiency. It cannot be higher than 45-50%.

Ejector

The greatest depth from which surface vortex and centrifugal pumps can lift water is 8-9 meters, often it is located deeper. To "get" it from there, an ejector is installed on the pumps. This is a tube of a special shape, which, when water moves through it, creates a vacuum at the inlet. So such devices also belong to the category of self-priming. The ejector self-priming pump can lift water from a depth of 20-35 m, and this is already more than enough for most sources.

External ejector connection diagram for wells different diameter- two inch right, four inch left

The disadvantage is that in order to ensure operation, part of the understood water must be returned back, therefore, performance is significantly reduced - such a pump may not provide very high flow water, but electricity is spent just as much to ensure performance. When the injector is installed in a well or well of sufficient width, two pipelines are lowered into the source - one supply of a larger diameter, the second, a return one, of a smaller one. An ejector is connected to their outlets, and a filter and a check valve are installed at the end. In this case, the disadvantage is also obvious - double consumption of pipes, which means a more expensive installation.

In small diameter wells, one pipeline is used - the supply pipeline, and instead of the return one, casing wells. Thus, a rarefaction zone is also formed.

Vortex and centrifugal - comparison and scope

First the generalities:

• maximum suction depth - 8-9 meters;
• installation method - surface;
• there must be a pipe or a reinforced hose on the suction pipeline (do not install the usual one, it will be flattened by negative pressure).

Now about what are the differences between vortex and centrifugal models. Peripheral pumps are more compact, cost less, but produce more noise during operation. Centrifugal - quieter, at the exit they create a small pressure. Vortex with the same dimensions of the impeller and the speed of its rotation can create a pressure of 3-7 times more. But it cannot be said that this is their advantage - far from always a large output pressure is required. For example, it is not needed when watering the garden and vegetable garden. Water supplied from high pressure will simply wash away the soil, expose the roots. Therefore, it is better to take a self-priming pump of a centrifugal type as a pump for irrigation.

High outlet pressure may be required when organizing a home water supply system. This is where the characteristics of vortex pumps will be required. They only have one drawback: they cannot provide a large flow. So more often for these purposes they use the same centrifugal, but paired with. True, then it turns out already.

The main disadvantage of surface centrifugal self-priming pumps is the need to fill them with water before starting. Not the most pleasant activity, which adds to the hassle when using such a pump for irrigation.

Surface pumps are very easy to operate and are simple design. Due to this, they are included in the economy class among other professional pumping units.

Surface pumps are divided into several types. Each type is designed to take a specific amount of water. The principle of operation of such pumps is similar to each other.

If you need water to water the beds or to fill a barrel, then it is better to use a low-capacity surface pump. If you are going to constantly take water from a well, then it is better to opt for self-priming surface pumps.

The principle of operation of such pumps can be divided into several stages:

• Installing a pump in a water source: river, lake and well;
• Turning on the pump;
• Water intake from a source through a hose;
• The pump stops if it is raised higher than 8 meters from the water source.

The principle of operation of the pump is not fundamentally different from the algorithm of operation of other pumps. There is only one principle of operation - taking water from a source and transferring it through hoses to the right place. When choosing a surface pump, consider the purpose and volume of water you want to pump from the source.

The nuances of the device: pump suction depth, what is it?

Each pump has its own characteristics, properties and parameters. Among them is the suction depth. This is a concept that often describes the quality of a pumping station.

Suction depth is a kind of "height" that indicates how deep the pump can go to pick up water. These parameters are different for different pumps.

There are 3 types of pumps for giving according to the suction depth:

• About 5 meters;
• About 15 meters;
• About 30 meters.

The higher the suction depth, the better

The suction depth indicates the efficiency of the pump. The greater the depth, the longer the pump will be able to pump water from the source.

When choosing a surface pump, pay attention to the suction depth. It's not so important parameter to overpay for it at times. But if you are looking for effective pumping unit, then consider this characteristic.

We explain how to connect a water pump

Water pump connection milestone to create an uninterrupted water supply system and obtain water for their own needs. From correct connection depends on the rate of pumping water from the source to you.

To connect the water pump, it is better to follow the sequential instructions so as not to miss an important connection step. This will help you not to get confused and calmly connect all the necessary parts of the water device.

How to connect a stationary pump:

1. Install the adapter on the pipe. This will provide a difference with different threaded connections;
2. Take a powerful power cable. It must meet all the requirements, as we put it in the water. At the same time, the wire insulation must fully cope with being in water for a long time;
3. We use couplings for connection. These are heat shrink tubes that create waterproofing;
4. We duplicate the internal check valve with an additional metal valve;
5. Next, we hang the pump along the axis of the well or well;
6. We fix the pump for stability with the help of an eyelet.

Following these simple steps, you will connect the water pump in no time. The main thing to remember about safety and use only those wires that are well insulated from moisture.

As you can see, connecting the pump is a simple process. It only requires attention and a little time. Connect the pump correctly, follow the safety rules, and then the treasured water will flow from the other end of the hose.

How does a centrifugal pump start

Centrifugal pump- this is such an installation in which water moves due to centrifugal force, providing the necessary pressure. Hence the corresponding name of the pump.

Starting a centrifugal pump has its own characteristics and conditions, without which it simply will not start. Among them is the presence of water. Do not run the pump without water, otherwise it will fail.

Starting a centrifugal pump can be divided into several stages:

1. Filling water;
2. We unscrew the tap at the pressure gauge;
3. We close the valve
4. We start the electric motor;
5. We are waiting for the pump to reach the code required amount revolutions;
6. We monitor the pressure that the pressure gauge shows;
7. We open the valve of the vacuum gauge and the valves on the water supply pipes towards the glands.
8. We use water.

Start the external pump sequentially, according to the instructions, so as not to break it.

When starting the pump, if you mix up the sequence of actions, the pump may simply break down immediately, or over time. Therefore, it is worth following all the steps one after another, without violating the order, so that such a device does not fail.

Starting the centrifugal pump is done step by step. You should not treat the start-up of the device negligently, otherwise the water installation will fail. The centrifugal pump is one of the popular pumps when it is required to provide an uninterrupted and powerful flow of water.

Installation of a surface pump (video)

The surface pump is a great device for people who are looking for practicality and good efficiency for water intake. It is lightweight, easy to start and operate. It is used both to collect a small amount of water, and to obtain water of medium volumes.