Transcription of Selecting Centrifugal Pumps - KSB
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Technical informationSelecting Centrifugal Pumps Copyright byKSB AktiengesellschaftPublished by:KSB Aktiengesellschaft,Communications (V5),67225 Frankenthal / GermanyAll rights reserved. No part of this publication may be used, reproduced, stored in or intro duced in any kind of retrieval system or transmitted, in any form or by any means (electro nic, mechanical, photocopying, recording or otherwise) without the prior written permission of the completely revised and ex panded edition 005 Layout, drawings and composition: KSB Aktiengesellschaft, Media Production V5 ISBN 00 0 784 4 4 Contents1 Nomenclature ..62 Pump Types ..8 93 Selection for Pumping Water .. Pump Data .. 0 .. Pump Flow Rate .. 0 .. Developed Head and Developed Pressure of the Pump .. 0 .. Efficiency and Input Power .. 0 ..4 Speed of Rotation.
η Pa s tDynamic viscosity λ Pipe friction factor m /s Kinematic viscosity kg/m Density τ N/m Shear stress τf N/m Shear stress at yield point ϕ Temperature factor; opening angle of a butter fly valve; cos ϕ: power factor of asynchronous motors ψ Head coefficient (dimensionless head generated by impeller) 1 Indices, Subscripts
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