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Pumps types, the basic principles and components

                  PUMP TYPES, THE BASICS PRINCIPLES AND COMPONENTS By: Cyrus   07 Sep. 2022 The nearly inexhaustible variety of flow phenomena – from the flow through blood vessels, the flow in centrifugal pumps to global weather events − is based on a few basic physical laws only. In this article these will be briefly reviewed and their general nature illuminated. Emphasis will be on the phenomena which are of special interest and significance to the pump engineer. Basic knowledge of the terms of fluid dynamics is taken for granted. There is a wealth of textbooks and handbooks on fluid dynamics, only a few can be quoted Centrifugal pumps are turbomachines used for transporting liquids by raising a specified volume flow to a specified pressure level. The energy transfer in turbomachines is invariably based on hydrodynamic processes for which characteristically all pressure and energy differences are proportional to the squar...
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Bearing Arrangement, Back to Back and Face to Face When bearings are overloaded see what happen to them . By: Cyrus When bearings operate beyond the rated design, the bearing are overloaded. The greater the overload the shorter the bearing life. Bearings are an essential part of rotating equipment. The final load, whether it be axial or radial, is finally grounded with the help of bearings. Bearings may be considered analogous to ground connection in the case of electrical circuit. Bearings can be classified depending on various criteria such as the design, loading conditions, arrangements, type of lubrication and so on. Proper selection of the bearing is important, but not as important as proper installation. Following the correct assembly procedure while installing the bearings is paramount to achieving the intended service life of the bearing. Understanding duplex bearing arrangements during selection as well as assembly is important. Incorrect installation and a failure to und...
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KSB SuPremE® motors   ​​​​​(Released for sales from 0.55 to 45 kW rated power in Europe) High-efficiency motors contribute significantly to high overall efficiency of pump systems. At KSB we use IE2 motors as a standard to be in line with EU regulations. Going beyond these requirements, we offer optional IE3 asynchronous motors or our innovative synchronous KSB SuPremE® motors which further cut the losses of IE3 motors by 15 percent and meet the requirements of the scheduled IE4 standard acc. to IEC60034-30 Ed.2 /2011-5. Invest in the drive technology of tomorrow . Our highly efficient KSB SuPremE® motors are an innovative option for pumps up to 45 kW. As well as being highly efficient at rated load, these synchronous motors offer numerous other advantages: they are speed-controlled and highly efficient at low flow; they use fewer resources because they run without permanent magnets and they are just as robust as variable speed asynchronous motors. Tomorrow's motors – today at KSB....
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                                                THE FAILURES OF CENTRIFUGAL PUMPS (PART 1)  By: Cyrus On so many platforms, ranging from the oil and gas , mining, water and food industries, pumps failure ranges from one level to the other. When the pump start to fail, the entire plant can be shut down. With so much to learn, pump professionals learn to recognize and detect the most common causes of pump failure and detect the most common causes of pump failure and the root cause through analysis and troubleshooting. Despite all the care and maintenance, the statement engineers face "the pump has failed" Taking the pump out of service for its inability to deliver the desired flow and head its one of the conditions. There are other conditions which include seal related problems, pump and motor bearings related problem, cavitation, leakages from pump casing, cou...
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