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BPVC_2021_Summary_of_Significant_Changes_Sections_VIII_XII_II_6NGHzrM.pdf

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1、Summary of Significant Changes in the2021 ASME Boiler and Pressure Vessel CodeASME BPVC.SSC.VIII.XII.II.V.IX-2021Section VIIISection XIISection IISection VSection IXASME BPVC.SSC.VIII.XII.II.V.IX-2021Summary ofSignificant Changesin the 2021 ASMEBoiler and PressureVessel CodeSections VIII,XII,II,V,an

2、d IXTwo Park Avenue New York,NY 10016 USAxDate of Issuance:April 23,2021ASME does not issue written replies to inquiries concerning this publication.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 publi

3、sher.The American Society of Mechanical EngineersTwo Park Avenue,New York,NY 10016-5990Copyright 2021 byTHE AMERICAN SOCIETY OF MECHANICAL ENGINEERSAll rights reservedPrinted in U.S.A.CONTENTSList of Sections in the ASME Boiler and Pressure Vessel Code.ivForeword.vAcknowledgments.viSECTION VIII.1Int

4、roduction.1Division 1.5Division 2.12Division 3.16SECTION XII.21Introduction.21Significant Changes.23SECTION II.25Introduction.25Part A.26Part B.30Part C.33Part DCustomary and Metric.35SECTION V.39Introduction.39Significant Changes.40SECTION IX.45Introduction.45Significant Changes.48iiiLIST OF SECTIO

5、NSIN THE ASME BOILER AND PRESSURE VESSEL CODEIRules for Construction of Power BoilersIIMaterials Part A Ferrous Material Specifications Part B Nonferrous Material Specifications Part C Specifications for Welding Rods,Electrodes,and Filler Metals Part D Properties(Customary)Part D Properties(Metric)I

6、IIRules for Construction of Nuclear Facility Components Subsection NCA General Requirements for Division 1 and Division 2 Appendices Division 1 Subsection NB Class 1 Components Subsection NCD Class 2 and Class 3 Components Subsection NE Class MC Components Subsection NF Supports Subsection NG Core S

7、upport Structures Division 2 Code for Concrete Containments Division 3 Containment Systems for Transportation and Storage of Spent Nuclear Fuel and High-LevelRadioactive Material Division 5 High Temperature ReactorsIVRules for Construction of Heating BoilersVNondestructive ExaminationVIRecommended R

8、ules for the Care and Operation of Heating BoilersVIIRecommended Guidelines for the Care of Power BoilersVIIIRules for Construction of Pressure Vessels Division 1 Division 2 Alternative Rules Division 3 Alternative Rules for Construction of High Pressure VesselsIXWelding,Brazing,and Fusing Qualifica

9、tionsXFiber-Reinforced Plastic Pressure VesselsXIRules for Inservice Inspection of Nuclear Power Plant Components Division 1 Rules for Inspection and Testing of Components of Light-Water-Cooled Plants Division 2 Requirements for Reliability and Integrity Management(RIM)Programs for Nuclear PowerPlan

10、tsXIIRules for Construction and Continued Service of Transport TanksXIIIRules for Overpressure ProtectionivFOREWORDThisbookisacompaniontothe2021ASMEBoilerandPressureVesselCode(BPVC).Itexplainsonlysignificantchangesto Code requirements that have been approved since 2019 and that will be published in

11、the 2021 Edition.It covers thefollowing ASME BPVC Sections:Section VIII,Divisions 1,2,and 3 Section XII Section II,Parts A,B,C,and D Section V Section IXForeachoftheaboveSections,anIntroductiondescribesthehistoricalbackground,scopeofcoverage,andcommercialapplication of that Section by industry and g

12、overnment organizations.The list of changes follows the Introduction.The“Explanation”for each change provides the reason for the action and the value to the Code user.The sequence of thechanges follows the order of the Code requirements.vACKNOWLEDGMENTSThis book is the work of the following ASME Sta

13、ndards and Certification(S&C)staff:Steven J.Rossi,S&C Project Engineering Manager,Section VIII,Divisions 1 and 2 Adam Maslowski,S&C Project Engineering Manager,Section VIII,Division 3 Jihoon Oh,S&C Project Engineer,Section XII Colleen E.Rodrigues,S&C Project Engineering Manager,Section II,Parts A,B,

14、and D Erika Lawson,S&C Project Engineer,Section II,Part C;and Section IX Carlton R.Ramcharran,S&C Project Engineering Advisor,Section VASMEPresssOnlineCompanionGuidetotheASMEBoilerandPressureVesselCodes:CriteriaandCommentaryonSelectAspects of the Boiler&Pressure Vessel and Piping Codes(January 2020)

15、provided source material for the Introductionpreceding each list of changes.The complete Guide is available in the ASME Digital Collection athttps:/asmedigitalcollection.asme.org/ebooks/pages/onlinecompanionguide.ASME gratefully acknowledges the members of the following volunteer committees,who are

16、responsible for devel-opment of the ASME Boiler and Pressure Vessel Code Sections noted in this book:BPV Committee on Pressure Vessels(VIII)BPV Committee on Transport Tanks(XII)BPV Committee on Materials(II)BPV Committee on Nondestructive Examination(V)BPV Committee on Welding,Brazing,and Fusing(IX)viSECTION VIIIIntroduction1 DIVISION 1SectionVIII,Division1oftheASMEBoilerandPressureVesselCode(BPVC)providesrequirementsfortheconstructionof new pressure vessels.The ASME BPVC is a safety code writte

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