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Pumps
Sub Categories
Centrifugal pump is a pump, in which liquid motion and required pressure are created by the centrifugal force generated by impact of the impeller blades on liquid.
Impeller is fixed on the shaft, inside the pump housing that, as a rule, has a spiral shape. It could be both of an open type (disc plateon which the blades are installed) and of closed type – the blades are positioned between the front and rear disc plates. The blades are bent from the radial direction in the direction opposite to the direction of the impeller rotation. The pump housing is connected to the suction and pressure pipelines using connecting pipes.
If the pump housing is completely filled with liquid from the suction pipeline, then while rotation of the impeller(for example, using the electric motor), the liquid which is inside the impeller channels (between its blades) under the action of centrifugal force will be thrown from the wheel center to the periphery. Asaresult, depressionwillbecreatedintheimpellercentralpart, and pressure will be increased in the periphery. If the pressure will be increased, then liquid from the pump starts to come into the pressure pipeline. Asaconsequence, depressioniscreatedinsidethepumphousing, under the action of which the liquid simultaneously starts to come into the pump from the suction pipeline. Therefore, there is a continuous supply of liquid from the suction pipeline into the pressure pipeline by the centrifugal pump.
Centrifugal pumps could be not only of a single stage (with one impeller), but also of multiple stage (with several impellers). Herewith, the principle of their action in all cases is the same as always. Theliquidwillmoveundertheactionofcentrifugalforce, whichgeneratesduetotherotating impeller.
Centrifugal pumps are used in the heat and power plants to supply boilers, to feed condensate into the system of regenerative heating of feed water, condensing water into the turbine condensers, system water in the cogeneration systems. They are also used in the thermal power plants in the hydraulic ash-transport systems. Centrifugal pumps of special designs of standard and hermetically sealed versions are used in the technological cycle of nuclear power plants.
Pumps are widely used in the industrial enterprises, in the agriculture as well as in water supply for cities. Centrifugal pumps are operating in the industry in the systems of economic and industrial water supply; they are also used to supply different solutions and reagents in the production scheme. They are widely used in the construction and coal industry during sluicing and hydraulic coal mining. Such pumps are used in the light, chemical, food and petroleum industries for various purposes. They are used in the pipelines systems for transportation of water and oil for long distances. It should be noted that all public water supply systems are based on the use of centrifugal pumps.
Centrifugal downhole pumps are typically used in the agriculture for water supply of livestock farms. Centrifugal pumps with heavy supply are used in large water distribution systems of irrigated farming.
Multi-stage centrifugal pumps are aseparate type of pumps that distinguish with availability of the inletandout let duct shaving aquantity of stages between them. Such pumps are of high performance and are designed to create high pressure at low feeding. Multi-stage centrifugal pumps are often used in complex technical processes related to pumping of various liquids within a wide temperature range.
Designs of multi-stage centrifugal pumps.
Horizontal and vertical versions are often available among the various designs of multi-stage centrifugal pumps. Horizontal pumps are characterized by high performance, low noise level, easy to operate, that explains their frequent application at the boiler plants and high pressure stations to provide uninterruptible water-supply. Vertical pumps are used in fire-fighting systems, public water supply, inagricultural industry for irrigation and watering of the fields. Such application is determined by the ability of vertical multi-stage centrifugal pumps to generate high pressure at output.
The pumps have a modular design that permits to perform easy replacement of parts between the multi-stage pumps. Their dimensions are comparatively small that allows their compact installation in the required areas.
Submersible pumps are designed for pumping out both clean and polluted liquids, sewage water, human waste, etc. This type of pump is widely used both in industrial and domestic spheres for pumping out water from wells, cellars, swimming pools, as well as in the system of irrigation, watering, draining, etc.
Special features:
- Two-in-one: high pressure at high performance
- Versatility
- Simultaneous connection of several consumers for irrigation
- Long term operation
- Automatic operation
- Thermal protection
- Corrosion resistance of parts in contact with water
Many submersible pumps are equipped with float switches, which automatically trip the plant at reduction of liquid level below the limits and again activate it at achievement of a set value.
Motor asíncrono con rotor de jaula de ardilla – es más famoso y seguro entre todos los motores del mundo.
El motor eléctrico FTL proporciona enorme oportunidad en la operación y cubre más del 90% de uso de motores eléctricos asíncronos en los sectores correspondientes, están perfectamente adaptados a los diferentes sistemas de transmisión.
Motores eléctricos son diseñados con un determinado tipo de carcasa, con una altura de eje de 56 a 450 mm, con potencia de 0,09 kW hasta 18,5 kW, la clase de eficiencia energética de IE1 hasta IE4.
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Para poder seleccionar correctamente el tipo deseado de motor necesitamos la siguiente información: potencia, tensión de red de alimentación, número de revoluciones, forma de montaje (patas, gran brida, pequeña brida, tipo mixto).
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While designing a pool it is always necessary to remember that this is the perfect environment for vital activity of bacterium, algae and for mosquito breeding. There is only one way to prevent such processes – regular filtration and water purification.
The more voluminous the pool basin is, the more difficult it is to look after it. Tons of water daily or even weekly are not changed, because it is very expensive and not effective. That is why the main care «is shifted on shoulders» of filtration system, whose work is ensured by a pool pump. It is impossible to achieve a water installation without purity and safety of the water.
Fixed basins, which are used frequently or all-year require several pumps. The main aggregate is responsible for filtration, another creates counterflow, the third launches ultra-violet unit, the fourth turns on fountains and etc. The more relaxation zones, like hot whirlpool, massaging water jets are in a pool, the more pumps are involved in the operation.
A pool pump is like a heart for a body. From undisturbed operation will depend safety of water, and thus people’s health.
| Name | SKU | Description | Category | Producer | ||
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Bomba centrífuga DWO | Centrifugal pumps |
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Bomba centrífuga GCS | Centrifugal pumps |
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Bomba centrífuga GZA | Centrifugal pumps |
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Bomba centrífuga GPM | Centrifugal pumps |
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