ASME_B73.1-2001.pdf

ASME B73.1-2001Revision of ASME B73.1M-1991(R1999)SPECIFICATION FORHORIZONTAL END SUCTIONCENTRIFUGAL PUMPS FORCHEMICAL PROCESSA N A M E R I C A N N A T I O N A LS T A N D A R DASME B73.1-2001Revision of ASME B73.1M-1991(R1999)SPECIFICATION FORHORIZONTAL END SUCTIONCENTRIFUGAL PUMPS FORCHEMICAL PROCESSA N A M E R I C A N N A T I O N A LS T A N D A R DCopyrighted material licensed to Stanford University by Thomson Scientific(),downloaded on Oct-05-2010 by Stanford University User.No further reproduction or distribution is permitted.Uncontrolled when printed.AN AMERICAN NA TIONALST ANDARDSPECIFICATION FORHORIZONTAL END SUCTIONCENTRIFUGAL PUMPS FORCHEMICAL PROCESSASME B73.1-2001Revision of ASME B73.1M-1991(R1999)Copyrighted material licensed to Stanford University by Thomson Scientific(),downloaded on Oct-05-2010 by Stanford University User.No further reproduction or distribution is permitted.Uncontrolled when printed.Date of Issuance:February 25,2002The next edition of this Standard is scheduled for publication in 2006.Therewill be no addenda or written interpretations of the requirements of thisStandard issued to this edition.ASME is the registered trademark of The American Society of Mechanical Engineers.This code or standard was developed under procedures accredited as meeting the criteria forAmerican National Standards.The Standards Committee that approved the code or standardwas balanced to assure that individuals from competent and concerned interests have had anopportunity to participate.The proposed code or standard was made available for public reviewand comment that provides an opportunity for additional public input from industry,academia,regulatory agencies,and the public-at-large.ASME does not“approve,”“rate,”or“endorse”any item,construction,proprietary device,or activity.ASME does not take any position with respect to the validity of any patent rights asserted inconnection withany itemsmentioned inthis document,and doesnot undertaketo insureanyoneutilizing a standard against liability for infringement of any applicable letters patent,nor assumeany such liability.Users of a code or standard are expressly advised that determination of thevalidity of any such patent rights,and the risk of infringement of such rights,is entirely theirown responsibility.Participation by federal agency representative(s)or person(s)affiliated with industry is not tobe interpreted as government or industry endorsement of this code or standard.ASME accepts responsibility for only those interpretations of this document issued inaccordance with the established ASME procedures and policies,which precludes the issuanceof interpretations by individuals.No part of this document may be reproduced in any form,in an electronic retrieval system or otherwise,without the prior written permission of the publisher.The American Society of Mechanical EngineersThree Park Avenue,New York,NY 10016-5990Copyright 2002 byTHE AMERICAN SOCIETY OF MECHANICAL ENGINEERSAll Rights ReservedPrinted in U.S.A.Copyrighted material licensed to Stanford University by Thomson Scientific(),downloaded on Oct-05-2010 by Stanford University User.No further reproduction or distribution is permitted.Uncontrolled when printed.FOREWORDIn 1955,the Standards Committee on Centrifugal Pumps for Chemical Industry Use,B73,undertook the development of centrifugal pump standards to meet the needs of the chemicalindustry.Although the Standards Committee had not completed its assignment,the workof one of its task forces resulted in the development of a de facto standard which waspublished by the Manufacturing Chemists Association in 1962 as an American VoluntaryStandard.More than a dozen manufacturers of chemical process pumps have been marketingpumps conforming with the AVS since that time.In 1965 the Hydraulic Institute published a tentative standard similar in content to theAVS,but updated certain portions.Although the Hydraulic Institute Tentative Standardreflected more nearly the current practice of manufacturers and users,it was believednecessary to publish a new document which would supersede both the original AVS andthe tentative standard,and which could incorporate the technical content of both documents,in addition to dimensional criteria and features generally accepted by manufacturers andusers.The January 1968 revision of the AVS was therefore approved as an AmericanNational Standard under the existing standards method and published as ANSI B123.1-1971.ANSI B73.1 superseded ANSI B123.1-1971 and was first published in 1974.The 1974edition brought to 15 the number of pump sizes covered by the standard.Since then,thecommittee has continued to be active and has added five more sizes for a total of 20,andmade a number of revisions in the text of the standard.Shortly thereafter,the American National Standards Committee B73 undertook to revisethe standard,and as a result,new information on baseplate rigidity,bearing frame adapter,and bearing housing drain was introduced