ASME_B16.14-2018.pdf

AN AM E R ICAN NAT IO NAL STANDARD ASME B16.14-2018(Revision of ASME B16.14-2013)Ferrous Pipe Plugs,Bushings,and Locknuts With Pipe ThreadsASME B16.14-2018(Revision of ASME B16.14-2013)Ferrous Pipe Plugs,Bushings,andLocknuts With PipeThreadsAN AMERICAN NATIONAL STANDARDxDate of Issuance:September 10,2018The next edition of this Standard is scheduled for publication in 2023.ASME issues written replies to inquiries concerning interpretations of technical aspects of this Standard.Periodically certainactionsoftheASMEB16CommitteemaybepublishedasCases.CasesandinterpretationsarepublishedontheASMEwebsiteunder the Committee Pages at http:/cstools.asme.org/as they are issued.Errata to codes and standards may be posted on the ASME website under the Committee Pages to provide corrections toincorrectlypublisheditems,ortocorrecttypographicalorgrammaticalerrorsincodesandstandards.Sucherratashallbeusedon the date posted.TheCommitteePagescanbefoundathttp:/cstools.asme.org/.Thereisanoptionavailabletoautomaticallyreceiveane-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.ThiscodeorstandardwasdevelopedunderproceduresaccreditedasmeetingthecriteriaforAmericanNationalStandards.TheStandardsCommitteethatapprovedthecodeorstandardwasbalancedtoassurethatindividualsfromcompetentandconcernedinterestshavehadanopportunityto participate.The proposed codeorstandardwasmadeavailable forpublic reviewandcommentthatprovidesanopportunityfor 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 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 2018 byTHE AMERICAN SOCIETY OF MECHANICAL ENGINEERSAll rights reservedPrinted in U.S.A.CONTENTSForeword.ivCommittee Roster.viCorrespondence With the B16 Committee.viiSummary of Changes.ixList of Changes in Record Number Order.x1Scope.12General.13PressureTemperature Ratings.14Nominal Pipe Size.15Marking.16Materials.27Dimensions and Tolerances.28Threads.29Pattern Taper.2Mandatory AppendixIReferences.10Nonmandatory AppendixAQuality System Program.11Tables7-1Dimensions of Square Head Plugs.37-2Dimensions of Bar or Slotted Head Plugs.47-3Dimensions of Countersunk Plugs.57-4Dimensions of Outside Head,Inside Head,and Face Bushings.67-5Dimensions of Locknuts.9iiiFOREWORDIn1921,theAmericanEngineeringStandardsCommitteelatertheAmericanStandardsAssociation(ASA)organizedSectionalCommittee B16 tounify and develop standards forpipe flanges and fittings.Cosponsorsofthe B16 Committeewere The American Society of Mechanical Engineers(ASME),the Heating and Piping Contractors National Associationnow Mechanical Contractors Association of America(MCAA),and the Manufacturers Standardization Society of theValve and Fitting Industry(MSS).Cosponsors were later designated as Co-Secretariat organizations.Threaded fittings were also included in the scope of the B16 Committee,and Subcommittee 2(now Subcommittee B)was made responsible for threaded fittings other than steel.The American Standard for Pipe Plugs was originally published as ASA B16e2-1936.It had been developed bySubcommittee 2 from material assembled and published by MSS as a standard practice in April 1929.From the beginning,pipe plugs have been made with the American Standard Taper Pipe Thread,but the design of thesquare heads necessary to screw them into fittings or any tapped hole has been a matter of manufacturers and usersindividual design.However,the use of pipe plugs soon broadened,and they came to be employed in many other serviceapplications,e.g.,automotiveandindustrialmachinery.Accordingly,itwasnaturalforthedimensionsofthesquareheadsandthesocketstoconformtostandardopenwrenchsizesandtomaximumdimensions