How to choose a centrifugal pump for dirty water? Photos, expert advice, manufacturer reviews

The main advantages of centrifugal pumps are economy, ease of use and long service life. There are several types of such units. If desired, today you can also purchase such equipment as for dirty water. Such models can be used for pumping wells, pits, biological treatment plants, etc.

Centrifugal pump device

The advantages of this type of equipment, among other things, include the simplicity of design. Such pumps consist of a solid housing and disks with blades located in it. Connection to the unit of hoses or pipes is made through branch pipes.

The principle of operation of this type of equipment is quite simple. When the impeller of the unit rotates, the water in the housing is displaced from the center to the peripheral areas. As a result, increased pressure is created, and the liquid begins to be squeezed out into the pipeline.

Types of centrifugal pumps

The advantage of this modern equipment, among other things, is that it can be used to work with any liquids (including oils). However, most often such models are still purchased by the owners of suburban areas. The popularity of this equipment is explained primarily by its low cost and reliability. Centrifugal pumps of the following types can be used in country houses:

downhole;

wells;

drainage;

fecal.

The first type of pumps is included in the scheme and in most cases can be used to pump only clean water. If there is too much sand in the well, the impeller of the unit will clog, which will lead to engine failure. Centrifugal units can also be classified into conventional and self-priming. The latter variety gives more pressure.

Centrifugal pump for dirty water: design features

Units of this design usually have a rather high power. Therefore, they can be used for pumping not only clean, but also dirty water containing a certain amount of suspended particles (from basements, pools, etc.). Such centrifugal pumps are called drainage. A feature of their design is that they can pass through themselves, without harm to components and mechanisms, rather large particles of dirt - up to 5 mm in diameter.

Fecal pumps

Equipment of this variety is also used for pumping dirty sewage, but in sewer systems. Such units can be used, for example, in cases where treatment facilities are located very far from home. It is also advisable to use a fecal centrifugal pump for dirty water when the plumbing equipment is located at a great distance from the riser or below it.

Types of centrifugal fecal and drainage pumps at the installation site

In addition to the scope of use, units of this variety can be classified according to the method of water intake. In this regard, there are models:

submersible;

superficial.

For dirty water (drainage) is installed directly in the pond or pool. Surface models are mounted next to them.

immediately after drilling;

when cleaning out an old mine.

Domestic well models are not as sensitive to the presence of sand and mud in water as imported ones. Therefore, in order to pump out dirty water from a mine, experts usually advise, in addition to powerful imported equipment, to purchase a small submersible pump made in Russia or China. Such equipment usually costs only 1500-1700 rubles.

Of course, it is impossible to use low-power pumps to provide irrigation or water supply at home. For short-term pumping, they are just perfect. In the future, such equipment can be adapted, for example, for cleaning a hydraulic tank.

Application of drainage pumps in dirty mines

Units of this type can also be used to clean silted wells. However, pumping very shallow mines is in most cases all that centrifugal drainage (for dirty water) is capable of, such equipment is rarely used. The fact is that the diameter of the body is most often quite large. Such equipment simply will not go into the mine. Surface household models can be used to raise water from a maximum of 8-10 m.

Conventional and self-priming centrifugal pumps for dirty water (drainage) are most often used, however, in the treatment of sources such as wells. In this case, both submersible and surface models can be used.