ASME_B73.3-2015.pdf

AN AM E R IC AN NAT IO NAL STANDARD ASME B73.3-2015Revision of ASME B73.3-2003(R2008)Specification for Sealless Horizontal End Suction Centrifugal Pumps for Chemical ProcessASME B73.3-2015Revision of ASME B73.3-2003(R2008)Specification forSealless HorizontalEnd SuctionCentrifugal Pumpsfor Chemical ProcessAN AMERICAN NATIONAL STANDARDTwo Park Avenue New York,NY 10016 USADate of Issuance:December 15,2015This Standard will be revised when the Society approves the issuance of a new edition.There willbe no written interpretations of the requirements of this Standard issued to this edition.Periodically certain actions of the ASME B73 Committee may be published as Cases.Cases arepublished on the ASME Web site under the B73 Committee Page at go.asme.org/B73committee asthey are issued.Errata to codes and standards may be posted on the ASME Web site under the Committee Pages toprovide corrections to incorrectly published items,or to correct typographical or grammatical errorsin codes and standards.Such errata shall be used on the date posted.The B73 Committee Page can be found at go.asme.org/B73committee.There is an option availableto automatically receive an e-mail notification when errata are posted to a particular code or standard.ThisoptioncanbefoundontheappropriateCommitteePageafterselecting“Errata”inthe“PublicationInformation”section.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 for American NationalStandards.The Standards Committee that approved the code or standard was balanced to assure that individuals fromcompetent and concerned interests have had an opportunity to participate.The proposed code or standard was madeavailable forpublic review andcomment thatprovides an opportunityfor additional publicinput 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 in connection with anyitems mentioned in this document,and does not undertake to insure anyone utilizing a standard against liability forinfringement of any applicable letters patent,nor assumes any such liability.Users of a code or standard are expresslyadvised that determination of the validity of any such patent rights,and the risk of infringement of such rights,isentirely their own responsibility.Participation by federal agency representative(s)or person(s)affiliated with industry is not to be interpreted asgovernment or industry endorsement of this code or standard.ASME accepts responsibility for only those interpretations of this document issued in accordance with the establishedASME procedures and policies,which precludes the issuance of 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 EngineersTwo Park Avenue,New York,NY 10016-5990Copyright 2015 byTHE AMERICAN SOCIETY OF MECHANICAL ENGINEERSAll rights reservedPrinted in U.S.A.CONTENTSForeword.vCommittee Roster.viCorrespondence With the B73 Committee.vii1Scope.12References.13Alternative Designs.143.1Extended Length Pump Design.143.2Close Coupled Design.143.3Alternative Design.144Nomenclature and Definitions.154.1Definitions of Terms.154.2Additional Definitions.155Design and Construction Features.155.1Pressure and Temperature Limits.155.2Flanges.165.3Casing.165.4Impeller.175.5Internal Drive Assembly.185.6Containment Design.185.7Bearings,Lubrication,and Bearing Frame(MDP).205.8Outer Magnet Assembly(MDP).205.9Stator Assembly(CMP).215.10Materials of Construction.215.11Auxiliary Piping.215.12Corrosion Allowance.215.13Direction of Rotation.215.14Dimensions.255.15Miscellaneous Design Features.255.16Monitoring Devices.266General Information.266.1Application.266.2Performance Curves.276.3Tests and Inspections.276.4Nameplates.317Documentation.317.1General.317.2Requirements.317.3Document Description.317.4Specially Requested Documentation.35Figures5.3.5.1-1Cooling and Heating Pipe Plans.175.5.5.5-1Plan 114 Modified.195.16.4-1CMP Vibration Measurement Locations.277.3.1-1Pump and Driver Outline Drawing for Separately Coupled Magnetic DrivePumps.327.3.1-2Pump and Driver Outline Drawing for Canned Motor Pumps.33iiiTables1-1Pump Dimensions for Separately Coupled Magnetic Drive Pumps.21-2Baseplate Dimensions for Separately Coupled Magnetic Drive Pumps.52-1Baseplate Dimensions for Close Coupled Magnetic Drive Pumps.73-1Pump Dimensions for Canned Motor Pumps.93-2Baseplate Dimensions for Canned Motor Pumps.115.10.1.2-1 Magnetic Drive and Canned Motor Pump Material Classification Codes.225.10.1.3-1 ASTM Material Specifications.245.11.1-1Minimum Requirements for Auxiliary Piping Materials.256.1.5-1Approximate Hydraulic Coverage,50 Hz.2