How to choose submersible pumps for wells: selection criteria

IN in country houses, the water supply system often depends on a well or well, which is equipped at a depth of 8-10 meters. It is not possible to get water from such a depth on your own. Moreover, it is inconvenient to go outside every time you need fresh drinking water. Therefore, the owners of summer cottages and suburban housing should pay special attention to the models of submersible devices. They will provide uninterrupted water supply to the home. Let's look at how to choose submersible pumps for wells and the principle of the mechanism.

What a submersible pump looks like

The principle of operation and design of a submersible pump

The submersible pump works in water. It lifts liquid even from very deep wells and wells to the surface. It is worth distinguishing between well and downhole devices. Wells tend to have a more elongated shape for working in narrow wells and a higher head for lifting water from great depths.

Borehole pumps

These types have minor differences in the device. Basically, all units consist of the following parts:

• The impeller, which is the main structural element. It sets in motion all other details of the structure;

Instrument impeller

• Wheel blades. They generate centrifugal force, which is necessary for the rapid absorption of water;
• Suction area;
• Impeller housing. It protects it from the negative effects of the environment;
• Valve - traps water in the pump and prevents its return to the well;
• A protective net is necessary to protect drinking water from harmful impurities that can negatively affect the health of the residents of the house.

Submersible unit design

• A pipeline whose function is to transfer water from the pump to water supply system.

Sectional device

The submersible blower is powered by electricity. It makes the impeller rotate.Thus, the liquid flows from the well or well into the pipeline, which, in turn, conducts water to the water supply system.

System operation diagram

As we can see, the principle of operation, as well as the design of the supercharger itself, are elementary. Now let's find out what types of these devices exist and how to choose a submersible pump for a well.

Video: the principle of operation and design of a submersible pump

 

Classification of submersible units

By design, the following types are distinguished:

• Vibrating - is a structure of a vibrator, an electromagnet and a housing. It is widely used in suburban areas not only for pumping and delivering water to the house, but also for watering the garden and garden. Vibrating devices show good performance in terms of pressure and power. Moreover, their price is low;

Vibration pump device

Vibrating - the most common types

• Vortex - consists of a discharge area and an electric motor. The first element is used to pump liquid, the second to supply water to the house. This type is capable of lifting water from a depth of 12 meters. In this case, the process takes place quickly enough;

The principle of operation of the vortex type device

Vortex unit

• Centrifugal - a complex of two blocks: a working chamber and an engine. They pump out up to several hundred liters per hour thanks to the presence of a special centrifugal shaft. However, such devices have one significant drawback: they consume too much electricity.

Self-priming principle of centrifugal pump

Centrifugal unit

Selection criteria for submersible devices

To make the device suitable for your home, you need to decide on the following parameters:

• Distance from the well to the dwelling. The greater the distance, the more powerful the pump model should be chosen;
• The amount of water consumed. As practice shows, for ordinary families consisting of 4-5 people, the most ordinary medium-power blower is suitable. But if a larger number of people live in the house, it is worth choosing a stronger model;
• Performance. This parameter is measured in liters of fluid that the pump can raise per unit of time. On average, the productivity reaches 4.2 ÷ 4.5 cubic meters. However, if the device is necessary not only for the usual water supply of the home, but also for watering a spacious personal plot, then you should pay attention to models with a capacity of 4.8 cubic meters and above;
• Power. It is indicated in kilowatts. This indicator indicates the volume of supplied water per unit of time. But you should not buy a device on the principle of "the more power, the better." If your family does not need too much water, then take a blower with an average capacity, as a device that is too powerful consumes a lot of energy.

The formula for calculating the required pressure

Based on these indicators, you will select the optimal unit for your home, which will serve you for many years in a row.

Correct organization of the water intake system

How to choose a pump for a well: an overview of popular models

Video: Grundfoss well pumps

 

If you are not sure which submersible pump for a well to choose, see the plate below:

Brand name	Description	Who should buy
"Pedrollo"	High quality device from an Italian manufacturer. The body is made of stainless steel, thanks to which the service life of the device reaches tens of years. Models with diameter “3” are not available.	- For those who want to install a high-quality imported pump for an adequate amount.
"Grundfoss"	German-Danish brand. There are additional functions such as dry-running protection and soft start.	- Those who are ready to pay big money for quality.- For those who need a unit with a diameter of "4".
Sprut	Ukrainian-Chinese production. The products include pumps with a diameter of "3". Low price.	- For those who want to equip a small summer cottage where a large pump power is not needed.
"ETsV"	Ukrainian production. In comparison with European manufacturers, it has a low cost and, nevertheless, high productivity. However, at the same time, such models consume an unjustified amount of electricity.	- For those who want to equip industrial rural enterprises.

Pedrollo products

Grundfoss products

Sprut devices

Downhole blowers ETsV

This plate will guide you with which pump to choose for a well or a well.

conclusions

• A submersible pump is a necessary device for summer cottages, where the main source of liquid is well;
• The unit conducts water from a depth of more than 10 meters;
• The more water you need, the more power you need to be.

Video: how to choose a pump and what are

 

RATE THIS ARTICLE

Loading...

 

See also:

Do-it-yourself water supply in the country from a well: step-by-step installation Water supply of a private house from a well: scheme and organization Diy well without equipment: the principle of the device Pumping station for a private house: water supply without hassle Purification of water from a well from iron: methods and useful recommendations How to choose and install a pump to increase water pressure in an apartment