Fluid enters through the horizontal suction flange and leaves through a vertical discharge flange. Axial Flow Centrifugal Pump. Centrifugal pumps can be classified based on the manner in which fluid flows through the pump. If flow reduces at suction, discharge flow will get reduced accordingly. Flow is varied by varying the pump speed. A portion of the energy goes into kinetic energy of the fluid motion, and some goes into potential energy, represented by fluid pressure or by lifting the fluid, against gravity, to a higher altitude. Dynamic pumps are classified into different types but some of them are discussed below like Centrifugal, Vertical centrifugal, Horizontal centrifugal, Submersible, and Fire hydrant systems. They are used in process applications where very high pressures are required, where metering of fluids is needed, or where the sealless nature of this pump type is an important benefit. According to the construction, application, design, and service, there are three types of centrifugal pump are available. According to the type of impeller. As fluid enters the central impeller eye, its flow changes direction from that … 3. There are no drive seals, therefore the risk of leaks is completely eradicated. Centrifugal pump speed is the foremost factor to determine the performance of the device. However, when the flow rate is very high, single-suction will not be enough. Dewatering pumps, water circulation pumps are everyday use cases of axial flow pumps. It is a tradeoff between radial and axial type pump. In a standard pump, called an end-suction pump, the bearings are located outside of the pump casing. Horizontal pumps are more widely used as it is easy to maintain. If you are working with such liquid, make sure you have enough pressure in your system all the time. Diaphragm type pumps are generally deployed within the following ranges: There are a wide variety of materials of construction, ranging from various plastics and cast iron or stamped stainless steel for lighter duties - to bronzes, stainless steels, exotic alloys, and specialty plastics for more corrosive, abrasive, hygienic, or other difficult applications. Proper selection from different types of centrifugal pumps is crucial for plant performance. The reciprocating pump requires less floor space with a simple foundation. Density of the fluid – Liquid with high density will not work with the pump. Vapor Pressure of the Fluid – Process fluid will very low vapor pressure is not suitable as it may lead to cavitation. It has its own pump classification. DIFFERENT TYPES OF CENTRIFUGAL PUMP. Radial flow impeller: In radial … In this type, a shaft is a horizontal plane. If there is no flow at suction, it will seriously damage pump internals. Thank You for subscribing to Hardhat Engineer. This provides the energy that moves liquid through the pump and pressurizes the liquid to move it through the piping system. It is used in all facilities such as refinery, oil production platform, petrochemical plant, power plant, etc. There are four main type classifications of centrifugal pump, with the chief distinction of each being the mechanism that drives the reciprocating diaphragm. • Semi-Open Impeller: The vanes are free on one side and enclosed on the other. Through volute casing, it discharges. This pump is useful when handling a large amount of fluid with very little pressure head. The impeller is attached at the end of the shaft. The most common type of casing is called a volute and it looks similar to a snail shell. The three types of flow through a centrifugal pump are radial flow, axial flow, and mixed flow. A centrifugal pump consists of one or more rotating impellers which guide the liquid to and from the impeller, increasing the pressure and flow rate of the fluid as it rotates. Corrosion inside the pump caused by the fluid properties. Centrifugal pump delivery is continuous and needs priming. Original Model Creator of the above image is Mr. Augusto Brozoski. That means discharge is perpendicular to the pump shaft. Radial Split – Radially split pump casing opens perpendicular to the shaft axis and parallel to the impeller. There are many different types of pumps available other than the standard end suction, submersible or vertical multi-stage pump. The specific speed of the centrifugal pump is described as an ideal pump corresponding to the actual pump so that when the impeller operates at the specific speed will enhance a division of volume. Its is used in places like agriculture, municipal (water and wastewater plants), industrial, […] This action resembles working or propellant. 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