ASME_B31.4-2019.pdf

Pipeline Transportation Systems for Liquids and SlurriesASME Code for Pressure Piping,B31AN INTE R NAT IO NAL PIPING CO D EASME B31.4-2019(Revision of ASME B31.4-2016)ASME B31.4-2019(Revision of ASME B31.4-2016)PipelineTransportationSystems for Liquidsand SlurriesASME Code for Pressure Piping,B31AN INTERNATIONAL PIPING CODETwo Park Avenue New York,NY 10016 USAxDate of Issuance:November 1,2019The next edition of this Code is scheduled for publication in 2022.This Code will become effective 6 months after the Date ofIssuance.ASME issues written replies to inquiries concerning interpretations of technical aspects of this Code.Interpretations arepublished on the Committee web page and under http:/go.asme.org/Interpretations.Periodically certain actions of theASME B31 Committee may be published as Cases.Cases are published on the ASME website under the B31 CommitteePage at http:/go.asme.org/B31committee as they are issued.Errata to codes and standards may be posted on the ASME website under the Committee Pages of the associated codes andstandardstoprovidecorrectionstoincorrectlypublisheditems,ortocorrecttypographicalorgrammaticalerrorsincodesandstandards.Such errata shall be used on the date posted.The B31 Committee Page can be found at http:/go.asme.org/B31committee.The associated B31 Committee Pages for eachcode and standard can be accessed from this main page.There is an option available to automatically receive an e-mailnotification when errata are posted to a particular code or standard.This option can be found on the appropriate CommitteePage after selecting“Errata”in the“Publication Information”section.ASME is the registered trademark of The American Society of Mechanical Engineers.This international code or standard was developed under procedures accredited as meeting the criteria for American National StandardsanditisanAmericanNationalStandard.TheStandardsCommitteethatapprovedthecodeorstandardwasbalancedtoassurethatindividualsfromcompetentandconcernedinterestshavehadanopportunitytoparticipate.Theproposedcodeorstandardwasmadeavailableforpublicreviewandcommentthatprovidesanopportunityforadditionalpublicinputfromindustry,academia,regulatoryagencies,andthepublic-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 any items mentioned in thisdocument,anddoesnotundertaketoinsureanyoneutilizingastandardagainstliabilityforinfringementofanyapplicableletterspatent,norassumeanysuchliability.Usersofacodeorstandardareexpresslyadvisedthatdeterminationofthevalidityofanysuchpatentrights,andtherisk of infringement of such rights,is entirely their own responsibility.Participation by federal agency representative(s)or person(s)affiliated with industry is not to be interpreted as government or industryendorsement of this code or standard.ASME accepts responsibility for only those interpretations of this document issued in accordance with the established ASME proceduresand 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 2019 byTHE AMERICAN SOCIETY OF MECHANICAL ENGINEERSAll rights reservedPrinted in U.S.A.CONTENTSForeword.viiCommittee Roster.ixCorrespondence With the B31 Committee.xiIntroduction.xiiiSummary of Changes.xvChapter IScope and Definitions.1400General Statements.1Chapter IIDesign.11401Loads.11402Calculation of Stresses.13403Criteria for Pipelines.18404Criteria for Fittings,Assemblies,and Other Components(Alternatively,Criteria forComponents).24Chapter IIIMaterials.37423Materials General Requirements.37425Materials Applied to Miscellaneous Parts.38Chapter IVDimensional Requirements.41426Dimensional Requirements for Standard and Nonstandard Piping Components.41Chapter VConstruction,Welding,and Assembly.43434Construction.43435Assembly of Piping Components.55Chapter VIInspection and Testing.57436Inspection.57437Testing.58Chapter VIIOperation and Maintenance Procedures.61450Operation and Maintenance Procedures Affecting the Safety of Liquid and SlurryTransportation Piping Systems.61451Pipeline Operation and Maintenance.62452Pump Station,Terminal,and Storage Facilities Operation and Maintenance.71453Corrosion Control.71454Emergency Plan.71455Records.72456Qualifying a Piping System for a Higher Operating Pressure.72457Abandoning a Piping System.73Chapter VIIICorrosion Control.74460General.74461External Corrosion Control for Buried or Submerged Pipelines.74462Internal Corrosion Control.77iii463External Corrosion Control for Pipelines Exposed to Atmosphere.78464Pipelines in Arctic Environments.79465Pipelines in High-Temperature Service.79466External Corrosion Control for Thermally Insulated Pipelin