In everyday life, people often have to use additional devices to obtain comfort, household pumps are used not only in country areas, and in apartments. They provide the organization of water supply in a short time, the distinctive feature of household devices is a small power, respectively, its consumption.

Among the many types on the market there are centrifugal pumps for water. Between themselves, devices differ in type depending on the conditions of application, constructive development is due to the features of use. For example, there are instruments for heating, water, pumping chemically active liquids and fecal waste.

Action of centrifugal pumps

The principle of operation is based on the strength of the wheels, that is, the creation of pressure, and pumping the fluid is carried out during their rotation. If the water gets into the pump, the water is obtained in the body of the device, then the speed turns into a piezometric pressure after passing the fluid of the wheels.

Equipment scheme

The centrifugal pump for water consists of:

1. spiral outlet;
2. wheels;
3. guide apparatus;
4. power pipe.

The drawing of the centrifugal pump for water is represented as a scheme

The fluid during the rotation of the wheel fills the bends on the blades, and water passes from the wheel to the channel of the spiral removal, in which the size of the section goes ascending. Due to this, the pressure is additionally enhanced, then water goes into the guide apparatus and goes through the nozzle into the receiving hose. All household centrifugal pumps differ from each other with the assembly design, the main changes relate to the number of working wheels, the shape of the nozzle and the location of the shaft. In addition, the devices have different sizes and power, which affects the choice.

Construction of centrifugal devices

To ensure the tightness of the work and prevent fluid leakage, household centrifugal pumps for water should have a sealing of the housing by replaceable rings. Then the resulting minimum clearance between the impeller belt and the sealing ring does not allow the return of the pumped fluid from the high pressure region to the low. From this, the high efficiency of the device is obtained. Earlier, the seal was used the gland padding, the modern end seals more qualitatively perform the tasks and help to reduce energy flows at the expense of the pump with minimal friction.
The construction of centrifugal pumps can be:

1. single-stage;
2. multistage.

The first type is considered the most common, but in practice it provides low fluid pressure. This is due to work in a wide range of water flow. The second type is used in engineering systems, where with a small submission it is necessary to ensure high pressure. It is ensured by the sequential location of the wheels that create acceleration.

Ensuring the popularity of equipment by positive properties

Many consumers prefer centrifugal water pumps due to characteristics:

• guaranteed reliability;
• durability of use;
• good indicators of efficiency;
• high parameters of pressure and pressure;
• low pressure drops;
• availability of prices;
• most of service for all time.

Centrifugal pumps are designed to pump water, it is also possible to work with liquids that do not have chemical aggressiveness. The breadth of application is caused by the depth of the absorption of the liquid, centrifugal pumps can get water from a depth of 9 meters. If the device occurs, the device does not give failures, although it is possible to stop the water supply.

Pump Selection Parameters for Successful Operation

Choosing a certain model of the device for solving solid problems it is necessary to know exactly the operating conditions. It is important to determine the properties of the pumped fluid, because some centrifugal pumps are designed for dirty fluid, while others are designed only to work with water without impurities. Accordingly, the device for the well or well will be different, because in pumped water there may be particles of sludge, sand.
Therefore, it is better to choose a device that is designed to work with dirty and clean water. Basically, household centrifugal pumps for dirty water are found:

1. submersible;
2. surface.

1. Submersible devices cope with a whole list of tasks - removing water from a flooded room or basement, drainage of cellars, pits or pools, watering works, pumping wastewater. For the country site, such a type of equipment is ideal due to the availability of prices, simplicity and reliability of application and high performance.
2. Pumps for water centrifugal surfaces are popular due to the principle of operation, because the hose is attached to the suction nozzle, which is immersed in the liquid. Such devices are well suited to ensure temporary water supply, because they have small sizes and weight. If necessary, the pump can always be easily dismantled and apply for other purposes. Surface pumps should be applied strictly for its intended purpose, with recommendations should be met in advance in the instructions. You need to know the technical features of the device, then the device will serve for a long time and without problems. The price of centrifugal pumps for water differs depending on the characteristics of the equipment and the manufacturer. Mostly consumers have already appreciated the quality of pumps from Russia and Italy. Among the well-known companies offering devices for household needs are highlighted with reliability: Aquarius, Wilo-Jet, Ebara, Werk. The cost of equipment may vary from 60ow and up to 5000, but the choice should be based on the characteristics.
Aquarius of the BCPE 0.5-40U has the price of about 200th, designed to pump out the fluid from wells. Its performance is calculated as 60l / min, it is great for water houses or a plot. If you attach the tank to the pump, then the station will be able to get water from depth to 40m.
The centrifugal device WERK JSW-10M from the Chinese manufacturer is widely used in everyday life, has a long service life with proper use. The price of such an aggregate is more than affordable - 60ow, while it has a thermal protection device and good pressure at low performance. Ideal for use in gardening.
Pumps Wilo-Jet WJ 201 1 stand around 200th, the manufacturer is Germany. The design of the device consists of stainless steel, with a small weight of 9.8kg and the power of 0.8kW pump gives pressure 30 meters.
EBARA Italian devices are also performed from stainless steel, the price of EBARA JEXM 100-200UE, this equipment is perfect for home. The self-priming pump is designed to pump water from tanks, pools and wells with a depth of 9 meters, also used to raise pressure in the water supply system.