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Centrifugal pump selection and characteristics information


The basic function of a pump is to do work on a liquid. It can be used to transport and compress a liquid. In industries heavy-duty pumps are used to move water, chemicals, slurry, food, oil and so on. Depending on their action, pumps are classified into two types — Centrifugal Pumps and Positive Displacement Pumps. While centrifugal pumps impart momentum to the fluid by motion of blades, positive displacement pumps transfer fluid by variation in the size of the pump’s chamber. Centrifugal pumps can be of rotor or propeller types, whereas positive displacement pumps may be gear-based, piston-based, diaphragm-based, etc. As a general rule, centrifugal pumps are used with low viscosity fluids and positive displacement pumps are used with high viscosity fluids.

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Centrifugal pump selection and characteristics

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oil and so on. Depending on their action, pumps are classified into two types — Centrifugal Pumps and Positive Displacement Pumps. While centrifugal pumps...

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Centrifugal compressor

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Centrifugal compressors, sometimes called impeller compressors or radial compressors, are a sub-class of dynamic axisymmetric work-absorbing turbomachinery...

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Pump

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There are three basic types of pumps: positive-displacement, centrifugal and axial-flow pumps. In centrifugal pumps the direction of flow of the fluid...

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Specific speed

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cavitation during the pump's operation on the suction side. It is defined by centrifugal and axial pumps' inherent physical characteristics and operating point...

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Chiller

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Most common today are the hermetic scroll, semi-hermetic screw, or centrifugal compressors. The condensing side of the chiller can be either air or...

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Impeller

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especially when creating suction in a pump or compressor. An impeller is a rotating component of a centrifugal pump that accelerates fluid outward from...

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Decanter centrifuge

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efficiency and feed capacity. The separation process in a decanter centrifuge relies on a few process characteristics such as centrifugal force or G-force...

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Continuously variable transmission

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maintain the proper amount of tension on the belt. Simple CVTs combining a centrifugal drive pulley with a spring-loaded driven pulley often use belt tension...

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Peeler centrifuge

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the principle of centrifugal force to separate solids from liquids by density difference. High rotation speed provides high centrifugal force that allows...

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Reverse osmosis

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flow, directly connected to a centrifugal pump that boosts the output pressure, reducing the pressure needed from the pump and thereby its energy input, similar...

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Induction motor

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curve at right. Suitable for most low performance loads such as centrifugal pumps and fans, Design B motors are constrained by the following typical torque...

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Humidifier

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centrifugal fan may become noisy due to build up which cannot effectively be removed with vinegar for example. However, the fan can be replaced, and the...

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Chromatography

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where both the stationary and mobile phases are liquids and the liquid stationary phase is held stagnant by a strong centrifugal force. The operating principle...

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Heat pipe

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interface and condenses back into a liquid, releasing the latent heat. The liquid then returns to the hot interface through capillary action, centrifugal force...

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Pumpable ice technology

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Therapeutic hypothermia Thermal Energy Storage Snowmaking Centrifugal compressor "Use of pumpable slurry ice at sea" (PDF). Seafood Scotland. May 31, 2005...

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Gas turbine

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relatively large machine which included a 25 stage centrifugal compressor designed by Auguste Rateau and built by the Brown Boveri Company. The gas turbine...

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Heat transfer

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"forced convection." In this case, the fluid is forced to flow by use of a pump, fan, or other mechanical means. Thermal radiation occurs through a vacuum...

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Micro hydro

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a pit, or water wheels and Archimedes screws. Small micro hydro installations may successfully use industrial centrifugal pumps, run in reverse as prime...

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Preselector gearbox

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pressure plate centrifugally actuated to engage at around 600rpm. Pure racing cars, such as the ERA, avoided a clutch altogether and relied on the progressive...

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Antifreeze

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additive (pure concentrate) and the mixture (diluted solution) are called antifreeze, depending on the context. Careful selection of an antifreeze can enable...

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Sewage treatment

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treatment systems) to large centralized systems involving a network of pipes and pump stations (called sewerage) which convey the sewage to a treatment plant...

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Grid energy storage

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their characteristics differ. For example, a pumped-hydro station is well suited for bulk load management applications due to their large capacities and power...

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Hurricane Aircat

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became home to many Viet Cong strongholds and logistics bases. In 1961, the US Navy brought airboats and pump-jet boats, neither of which rely on propellers...

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James Watt

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patented in 1784. A throttle valve to control the power of the engine, and a centrifugal governor, patented in 1788, to keep it from "running away" were very...

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Heinkel He 100

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scavenged by electrically-driven centrifugal pumps and fed to the header tanks. Sources indicate as many as 22 separate pumps were used for this, each with...

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