1、AN AM E R IC AN NAT IO NAL STANDARD ASME B16.48-2020(Revision of ASME B16.48-2015)Line BlanksASME B16.48-2020(Revision of ASME B16.48-2015)Line BlanksAN AMERICAN NATIONAL STANDARDxDate of Issuance:December 15,2020The next edition of this Standard is scheduled for publication in 2025.ASME issues writ
2、ten 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 an
3、d 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/.Thereisanoptionavaila
4、bletoautomaticallyreceiveane-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 Enginee
5、rs.ThiscodeorstandardwasdevelopedunderproceduresaccreditedasmeetingthecriteriaforAmericanNationalStandards.TheStandardsCommitteethatapprovedthecodeorstandardwasbalancedtoassurethatindividualsfromcompetentandconcernedinterestshavehadanopportunityto participate.The proposed codeorstandardwasmadeavaila
6、ble 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 vali
7、dity of any patent rights asserted in connection with any items mentioned in thisdocument,anddoesnotundertaketoinsureanyoneutilizingastandardagainstliabilityforinfringementofanyapplicableletterspatent,norassumeanysuchliability.Usersofacodeorstandardareexpresslyadvisedthatdeterminationofthevalidityof
8、anysuchpatentrights,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
9、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
10、 written permission of the publisher.The American Society of Mechanical EngineersTwo Park Avenue,New York,NY 10016-5990Copyright 2020 byTHE AMERICAN SOCIETY OF MECHANICAL ENGINEERSAll rights reservedPrinted in U.S.A.CONTENTSForeword.vCommittee Roster.viCorrespondence With the B16 Committee.viiSummar
11、y of Changes.ixList of Changes in Record Number Order.x1Scope.12General.13PressureTemperature Ratings.14Design.25Dimensions.26Materials.37Marking.38Paddle Blank and Spacer Identification.39Testing.3Mandatory AppendixIReferences.22Nonmandatory AppendicesAQuality System Program.23Figure2.1.1-1Line Bla
12、nks.2Tables4.3.1-1Dimensions of Class 150 Blanks for Use With Raised Face Flanges.44.3.1-2Dimensions of Class 300 Blanks for Use With Raised Face Flanges.54.3.1-3Dimensions of Class 600 Blanks for Use With Raised Face Flanges.64.3.1-4Dimensions of Class 900 Blanks for Use With Raised Face Flanges.74
13、.3.1-5Dimensions of Class 1500 Blanks for Use With Raised Face Flanges.84.3.1-6Dimensions of Class 2500 Blanks for Use With Raised Face Flanges.95.1-1Dimensions of Class 150 Female Ring-Joint Facing Figure-8 Blanks.105.1-2Dimensions of Class 300 Female Ring-Joint Facing Figure-8 Blanks.115.1-3Dimens
14、ions of Class 600 Female Ring-Joint Facing Figure-8 Blanks.125.1-4Dimensions of Class 900 Female Ring-Joint Facing Figure-8 Blanks.135.1-5Dimensions of Class 1500 Female Ring-Joint Facing Figure-8 Blanks.145.1-6Dimensions of Class 2500 Female Ring-Joint Facing Figure-8 Blanks.155.1-7Dimensions of Cl
15、ass 150 Male Ring-Joint Facing Figure-8 Blanks.16iii5.1-8Dimensions of Class 300 Male Ring-Joint Facing Figure-8 Blanks.175.1-9Dimensions of Class 600 Male Ring-Joint Facing Figure-8 Blanks.185.1-10Dimensions of Class 900 Male Ring-Joint Facing Figure-8 Blanks.195.1-11Dimensions of Class 1500 Male R
16、ing-Joint Facing Figure-8 Blanks.205.1-12Dimensions of Class 2500 Male Ring-Joint Facing Figure-8 Blanks.21ivFOREWORDIn July 1993,the ASME B16 Committee gave to its Subcommittee C the assignment to convert the API 590 Steel LineBlanks Standard into an ASME standard.The American Petroleum Institute no longer publishes the API 590 Standard.These lineblanksweredesignedinaccordancewith therules oftheASME B31.3-2002edition.Materials and relevantfootnotes have been added following the ASME format.Sign
