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Pumps are used to move liquids or slurries. Pumps move liquid from lower pressure to higher pressure, and overcome this difference in pressure by adding energy to the system such as a water system. Pumps are used throughout society for a variety of purposes. Early applications include the use of the water pumps to pump water. Today, pumps are used for irrigation, water supply, gasoline supply, air conditioning systems, refrigeration (usually called a compressor), chemical movement, sewage movement, flood control, marine services, etc.A centrifugal pump works by the conversion of the rotational kinetic energy, typically from an electric motor or turbine, to an increased static fluid pressure. This action is described by bernoulli's principle. The rotation of the pump impeller imparts kinetic energy to the fluid as it is drawn in from the impeller eye (centre) and is forced outward through the impeller vanes to the periphery. As the fluid exits the impeller, the fluid kinetic energy (velocity) is then converted to (static) pressure due to the change in area the fluid experiences in the volute section. Typically the volute shape of the pump casing (increasing in volume), or the diffuser vanes (which serve to slow the fluid, converting to kinetic energy in to flow work) are responsible for the energy conversion. A centrifugal pump containing two or more impellers is called a multistage centrifugal pump. The impellers may be mounted on the same shaft or on different shafts. The advantages to using a multistage centrifugal pump or a single stage pump include: to produce a higher pressure head, and to discharge a larger quantity of liquid. If a higher pressure head is to be developed then the impellers is mounted on same shaft (series) while for large discharge of liquid, the impellers are mounted on different shafts (parallel). To get the high head, number of impellers is connected in series. To get the high discharge, the impellers should be connected in parallel. Unless carefully designed, installed and monitored, pumps will be, or will become inefficient, wasting a lot of energy. Pumps need to be regularly tested to determine efficiency. There are seven different types of pump heads in a centrifugal pump: total static, total dynamic, static suction, static lift, static discharge, and dynamic suction and dynamic lift. The head of the pump is measured in imperial or metric measurements and can be found in a wide range of hardware stores. All fluids will be pumped at the same height, as long as the shaft of the centrifugal pump is putting out the same level of effort .The only adjustment required when changing the liquid in the pump is the amount of power required. To determine if more or less power is required, check the specific gravity for the fluid. The higher the rating, the more power you will need to generate to obtain the same amount of height.
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Featured Suppliers of Centrifugal Pumps
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Everest Engineers |
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Manufacturer of variety of pumps food grade pumps and other application. |
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Kalsi Pumps Private Limited |
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Manufacturers of pumps for domestic and agricultural as well as industrial use ,bathroom fittings ,ball valves, alternators,fans ,upvc pipes ,electric motors etc. |
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Anala Engineering Pvt. Ltd. |
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Manufacturer of sanitary pumps. |
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Pumps |
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Rajedia Pumps Pvt.ltd., |
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Manufacturer of pumps. |
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Pumps |
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