This practical reference describes the occurrence of cavitation in a centrifugal pump, and how unacceptable cavitation can be avoided. It explains cavitation problems such as hydraulic performance loss, hydrodynamically or thermodynamically induced surging, and cavitation erosion. General guidelines for acceptable operation conditions, such as, net positive suction head (NPSH) margins and minimum flowrates, are presented along with evidence and logic for these proposed guidelines.

All the experience of the research team from one of the world's foremost pump manufacturers - Sulzer, featuring the lastest in pump design and construction.

This book is both a state-of-the-art review of centrifugal pump technology and a practical guide to designers. Continuous development over a period of several decades has led to a rational approach to the understanding, design, and development of centrifugal pumps. Many aspects of this consistent approach are outlined in this book. Detailed description of all the important elements of a pump stage are included. Particular attention is paid to the impeller and the diffuser, which are the key elements in achieving the necesary head rise. Inlets, volutes, collectors, and return channels are also discussed in depth. Extensive use is made of the graphs, line drawings, and photographs. The text includes several hundred references which cover all of the important developments int the technology base over the past forty years. Computational fluid dynamics (CFD) and experimental testing are emphasized as essentials parts of the design review process. [Source : d'après la 4e de couverture].

This testing procedure provides methods of conducting and interpreting field tests on centrifugal pumps with actual pumped fluids. Contents include definitions and descriptions of terms; test planning; instrumentation and measurement methods; test procedure; computation of results; and interpretation of results. The volume also contains appendix materials including nomenclature; sample test results; sample calculation (dual units); related calculations; and references.

Zentrifugalpumpen werden in den verschiedensten Bereichen eingesetzt - etwa in städtischen Versorgungssystemen zum Pumpen von Wasser oder in Maschinen zum Pumpen von Öl -, denn sie sind zuverlässig und dabei moderat im Kosten- und Wartungsaufwand. Der Autor dieses Buches kann auf Erfahrungen aus langjähriger Tätigkeit in der Industrie zurückgreifen. Er erklärt Ihnen Konstruktion und Analyse der wichtigsten Pumpensysteme. (11/00)

This book gives an unparalleled, up-to-date, in-depth treatment of all kinds of flow phenomena encountered in centrifugal pumps including the complex interactions of fluid flow with vibrations and wear of materials. The scope includes all aspects of hydraulic design, 3D-flow phenomena and partload operation, cavitation, numerical flow calculations, hydraulic forces, pressure pulsations, noise, pump vibrations (notably bearing housing vibration diagnostics and remedies), pipe vibrations, pump characteristics and pump operation, design of intake structures, the effects of highly viscous flows, pumping of gas-liquid mixtures, hydraulic transport of solids, fatigue damage to impellers or diffusers, material selection under the aspects of fatigue, corrosion, erosion-corrosion or hydro-abrasive wear, pump selection, and hydraulic quality criteria. As a novelty, the 3rd ed. brings a fully analytical design method for radial impellers, which eliminates the arbitrary choices inherent to former design procedures. The discussions of vibrations, noise, unsteady flow phenomena, stability, hydraulic excitation forces and cavitation have been significantly enhanced. To ease the use of the information, the methods and procedures for the various calculations and failure diagnostics discussed in the text are gathered in about 150 pages of tables which may be considered as almost unique in the open literature. The text focuses on practical application in the industry and is free of mathematical or theoretical ballast. In order to find viable solutions in practice, the physical mechanisms involved should be thoroughly understood. The book is focused on fostering this understanding which will benefit the pump engineer in industry as well as academia and students.

This long-awaited new edition is the complete reference for engineers and designers working on pump design and development or using centrifugal pumps in the field. This authoritative guide has been developed with access to the technical expertise of the leading centrifugal pump developer, Sulzer Pumps. In addition to providing the most comprehensive centrifugal pump theory and design reference with detailed material on cavitation, erosion, selection of materials, rotor vibration behavior and forces acting on pumps, the handbook also covers key pumping applications topics and operational issues, including operating performance in various types of circuitry, drives and acceptance testing. - Enables readers to understand, specify and utilise centrifugal pumps more effectively, drawing on the industry-leading experience of Sulzer Pumps, one of the world's major centrifugal pump developers - Covers theory, design and operation, with an emphasis on providing first class quality and efficiency solutions for high capital outlay pump plant users - Updated to cover the latest design and technology developments, including applications, test and reliability procedures, cavitation, erosion, selection of materials, rotor vibration behaviour and operating performance in various types of circuitry