Currently, manufacturers produce only two main types of pumps: vibration and centrifugal. Models of the second group do not pump fluids so smoothly, but at the same time they usually differ in higher performance and lower cost. The domestic market today offers a huge number of brands of such equipment.
Types of Centrifugal Pumps
Equipment of this type is most often one of the elements of plumbing and sewer systems. According to the installation method, household centrifugal pumps are classified into:
Superficial. It is the cheapest type and at the same time easy to install and maintain. The only drawback of such models is that they can be used to pump water only from wells or very shallow wells (8-10 m).
Semi-submersible. Pumps of this type have a specially shaped housing. They are used most often for installation in wells, very wide boreholes or kopans (directly on the water). The engine of such models is located on the surface, while the suction system is under water.
Submersible. Since today in most areas water is obtained from narrow deep wells, such centrifugal domestic water pumps are most popular among consumers. The case of models of this type is a narrow cylinder. They are immersed into the well (together with the wiring cable) on a nylon or metal cable.
Fecal and drainage centrifugal pumps can be both surface and submersible. They differ from water only in the presence of special additions: filters, particulate grinders, etc.
Most popular brands
Most of the models available on the modern market are of pretty good quality. However, most often, owners of suburban areas buy a centrifugal electric pump of a household brand:
Grundfos.
The water cannon.
Pedrollo.
NGXM.
"Gardener".
"Caliber".
Pumps of these brands are characterized by a high degree of reliability, performance and a long service life.
Grundfos Models
Household centrifugal pumps of this brand are produced by the Danish company of the same name, founded in 1945. The range of models produced by this company is unusually wide. There are both industrial Grundfos equipment on the market and intended for installation in domestic systems. Borehole pumps of this brand are represented by two lines: SP and SQ. The second variety is intended for use in mines with very clean water. Four-inch SP models, as can be understood from the reviews, are capable of pumping including water contaminated with sand or other impurities. In the manufacture of both options, the manufacturer uses stainless steel parts.
This company also produces fecal pumps of the SEG and APG series, as well as UPS models designed for heating systems.
Pumps "Water cannon"
This brand is popular among domestic consumers not only for excellent quality, but also for low cost. The Vodomet pumps are produced by the Russian company Dzhileks. If you wish, you can choose a model of this brand for both a well and a well with a diameter of 10 cm or more. The advantage of Vodomet pumps is that they can be used for pumping heavily contaminated sand. Household centrifugal submersible pumps for water of this brand, according to reviews, have one small drawback - they are not equipped with a check valve.
Models "Pedrollo"
Pumps of this brand have recently gained more and more popularity among domestic summer residents. They are produced by the Italian company of the same name. Their advantages include, first of all, a long service life and high efficiency. Also, their advantages are minimal hydraulic losses during pumping, quiet operation and ease of use.
There are both industrial models of this brand, and designed for domestic needs. With their help, as evidenced by the reviews, it is possible to pump not only water, but also chemically aggressive environments. Very often, Pedrollo models are used for use in difficult operating conditions. Popular with consumers are not only centrifugal domestic water pumps from this manufacturer, but also fecal ones.
Caliber brand pumps
These models are made in China and have very good performance characteristics. All household centrifugal pumps "Caliber" have been certified in the domestic center ROSTEST. Judging by the reviews of consumers, despite the fact that they are going to China, the quality is very good.
Caliber pumps are characterized by high performance and long service life. Borehole centrifugal models of this brand are presented on the market by the NPPCS line. For installation in wells, a centrifugal pump NBC “Caliber” is usually used. Also, if desired, you can buy fecal models of this brand or drainage.
NGXM
NGXM are monoblock centrifugal pumps equipped with a special integrated injector. The cases of the models of this brand are made of stainless steel, and the impellers are made of brass. NGXM surface pumps are designed for installation in wells and small wells, as they can lift water from a depth of not more than 9.5 meters.
Model "Gardener"
The most popular are small well pumps of this brand. They cost literally a penny, but they can be used for a very long time. As the Sadovod household centrifugal submersible pump is small, it is often used to pump new wells before installing a permanent model that is sensitive to contamination. According to reviews, these babies are also suitable as equipment for cleaning hydraulic tanks from stagnant water. Sometimes "Gardener" pumps are installed in very shallow wells.
How to choose a centrifugal pump
When buying equipment of this type, in addition to the brand, you should, of course, pay attention to its other important characteristics. These include:
Performance. This is the name of the volume of water pumped by the pump per unit of time. The calculation of this parameter is carried out according to certain formulas. For a small house in which 4-5 people live, a model of 30-50 l / min is usually enough. If there is a need for watering the garden or any animals are bred on the site, you should buy a pump with a higher performance.
The pressure. From this indicator depends on how high the pump can lift water. The pressure is calculated quite simply. The height of the house itself plus the coefficient of possible losses (10%) is added to the depth of the mine.
Thus, modern household centrifugal pumps are productive, high-quality and reliable equipment. Using them, you can easily provide water to a country house, watering the garden, pumping out the contents of cesspools. The equipment considered in the article is currently considered the best in Russia. However, of course, there are good other brands of centrifugal pumps on the market. When choosing this equipment, in addition to its parameters, you should pay attention to the reputation of the manufacturer. And then the purchased pump will serve faithfully for many years, perfectly coping with its task.