1、AN AMERICAN NATIONAL STANDARDRepair of Pressure Equipment and PipingASME PCC-22008(Revision of ASME PCC-22006)Copyright ASME International Provided by IHS under license with ASME Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-ASME PCC-22008(Revision of ASME PCC-22
2、006)Repair ofPressureEquipmentand PipingAN AMERICAN NATIONAL STANDARDCopyright ASME International Provided by IHS under license with ASME Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-Date of Issuance: April 7, 2009This Standard will be revised when the Society a
3、pproves the issuance of a new edition. This Standardwill become effective 6 months after the Date of Issuance. There will be no addenda issued to thisedition.ASME issues written replies to inquiries concerning interpretations of technical aspects of thisdocument. Interpretations are published on the
4、 ASME Web site under the Committee Pages athttp:/cstools.asme.org as they are issued.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
5、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 for public review and comment that provides an opportunity for additional public input fr
6、om 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
7、 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
8、 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 interpretatio
9、ns 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
10、publisher.The American Society of Mechanical EngineersThree Park Avenue, New York, NY 10016-5990Copyright 2009 byTHE AMERICAN SOCIETY OF MECHANICAL ENGINEERSAll rights reservedPrinted in U.S.A.Copyright ASME International Provided by IHS under license with ASME Not for ResaleNo reproduction or netwo
11、rking permitted without license from IHS-,-,-CONTENTSForeword ivPreparation of Technical Inquiries vCommittee Roster . viSummary of Changes viiPart 1 Scope, Organization, and Intent 1Part 2 Welded Repairs . 5Article 2.1 Butt-Welded Insert Plates in Pressure Components 5Article 2.2 External Weld Over
12、lay to Repair Internal Thinning . 11Article 2.3 Seal-Welded Threaded Connections and Seal Weld Repairs 17Article 2.4 Welded Leak Box Repair . 19Article 2.5 Welded Lip Seals (in the course of preparation) . 23Article 2.6 Full Encirclement Steel Reinforcing Sleeves for Piping . 24Article 2.7 Fillet We
13、lded Patches With Reinforcing Plug Welds . 31Article 2.8 Alternatives to Traditional Welding Preheat . 37Article 2.9 Alternatives to Postweld Heat Treatment . 42Article 2.10 In-Service Welding Onto Carbon Steel Pressure Components orPipelines 45Article 2.11 Weld Buildup, Weld Overlay, and Clad Resto
14、ration . 57Article 2.12 Fillet Welded Patches 63Article 2.13 Threaded or Welded Plug Repairs 68Part 3 Mechanical Repairs 71Article 3.1 Replacement of Pressure Components 71Article 3.2 Freeze Plugs . 73Article 3.3 Damaged Threads in Tapped Holes . 78Article 3.4 Flaw Excavation and Weld Repair 88Artic
15、le 3.5 Flange Repair and Conversion . 94Article 3.6 Mechanical Clamp Repair 97Article 3.7 Pipe Straightening or Alignment Bending . 101Article 3.8 Damaged Anchors in Concrete (Postinstalled Mechanical Anchors) 104Article 3.9 Valves With Pressure-Seal-Type Bonnets (in the course of preparation) . 113
16、Article 3.10 Hot Bolting (in the course of preparation) 114Article 3.11 Hot and Half Bolting Removal Procedures 115Article 3.12 Inspection and Repair of Shell and Tube Heat Exchangers . 119Part 4 Nonmetallic and Bonded Repairs . 131Article 4.1 Nonmetallic Composite Repair Systems for Pipelines and P
17、ipework:High-Risk Applications 131Article 4.2 Nonmetallic Composite Repair Systems for Pipelines and Pipework:Low-Risk Applications . 161Article 4.3 Nonmetallic Internal Lining for Pipe: Sprayed Form for Buried Pipe . 174Part 5 Examination and Testing. 186Article 5.1 Pressure and Tightness Testing o
18、f Piping and Equipment 186Article 5.2 Nondestructive Examination in Lieu of Pressure Testing for Repairsand Alterations 200iiiCopyright ASME International Provided by IHS under license with ASME Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-FOREWORDASME formed an
19、 Ad Hoc Task Group on Post Construction in 1993 in response to an increasedneed for recognized and generally accepted engineering standards for the inspection and mainte-nance of pressure equipment after it has been placed in service. At the recommendation of thisTask Group, the Board on Pressure Te
20、chnology Codes and Standards (BPTCS) formed the PostConstruction Committee (PCC) in 1995. The scope of this committee was to develop and maintainstandards addressing common issues and technologies related to post-construction activities andto work with other consensus committees in the development o
21、f separate, product-specific codesand standards addressing issues encountered after initial construction for equipment and pipingcovered by Pressure Technology Codes and Standards. The BPTCS covers non-nuclear boilers,pressure vessels (including heat exchangers), piping and piping components, pipeli
22、nes, andstorage tanks.The PCC selects standards to be developed based on identified needs and the availability ofvolunteers. The PCC formed the Subcommittee on Inspection Planning and the Subcommitteeon Flaw Evaluations in 1995. In 1998, a Task Group under the PCC began preparing Guidelinesfor Press
23、ure Boundary Bolted Flange Joint Assembly. In 1999, the PCC formed the Subcommitteeon Repair and Testing. In 2002, the Subcommittee on Flaw Evaluation was dissolved, and replacedby the Joint ASME/API Committee on Fitness for Service. Other topics are under considerationand may be developed into futu
24、re guideline documents.The subcommittees were charged with preparing standards dealing with several aspects of thein-service inspection and maintenance of pressure equipment and piping. The Inspection PlanningStandard provides guidance on the preparation of a risk-based inspection plan. Defects that
25、 areidentified are then evaluated, when appropriate, using the procedures provided in the Fitnessfor Service. Finally, if it is determined that repairs are required, guidance on repair proceduresis provided in the Repair of Pressure Equipment and Piping Standard. These documents are invarious stages
26、 of preparation.None of these documents are Codes. They provide recognized and generally accepted goodpractices that may be used in conjunction with Post-Construction Codes, such as API 510, API 570,and NB-23, and with jurisdictional requirements.The first edition of ASME PCC-1, Guidelines for Press
27、ure Boundary Bolted Flange Joint Assembly,was approved for publication in 2000. ASME PCC-1-2000 was approved by the American NationalStandards Institute (ANSI) as an American National Standard on November 15, 2000.The first edition of ASME PCC-2, Repair of Pressure Equipment and Piping, was approved
28、 forpublication in 2004. This revision was approved by ANSI as an American National Standard onSeptember 25, 2008.ivCopyright ASME International Provided by IHS under license with ASME Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-PREPARATION OF TECHNICAL INQUIRI
29、ESINTRODUCTIONThe ASME Post-Construction Standards Committee will consider written requests for interpre-tations and revisions of the rules of this Standard and develop new rules if dictated by technologi-cal development. The Committees activities in this regard are limited strictly to interpretatio
30、nsof the rules or to the consideration of revisions to the present rules on the basis of new data ortechnology. As a matter of published policy, ASME does not “approve,” “certify,” “rate,” or“endorse” any item, construction, proprietary device, or activity, and, accordingly, inquiriesrequiring such
31、consideration will be returned. Moreover, ASME does not act as a consultant onspecific engineering problems or on the general application or understanding of the rules. If,based on the inquiry information submitted, it is the opinion of the Committee that the inquirershould seek professional assista
32、nce, the inquiry will be returned with the recommendation thatsuch assistance be obtained.An inquiry that does not provide the information needed for the Committees full understandingwill be returned.REQUIREMENTSInquiries shall be limited strictly to interpretations of the rules or to the considerat
33、ion ofrevisions to the present rules on the basis of new data or technology. Inquiries shall meet thefollowing requirements:(a) Scope. Involve a single rule or closely related rules in the scope of the standard. An inquiryletter concerning unrelated subjects will be returned.(b) Background. State th
34、e purpose of the inquiry, which may be either to obtain an interpretationof rules of this Standard, or to propose consideration of a revision to the present rules. Provideconcisely the information needed for the Committees understanding of the inquiry, being sureto include reference to the applicabl
35、e Part, Article, Edition, Addenda, paragraphs, figures, andtables. If sketches are provided, they shall be limited to the scope of the inquiry.(c) Inquiry Structure(1) Proposed Question(s). The inquiry shall be stated in condensed and precise question for-mat, omitting superfluous background informa
36、tion, and, where appropriate, composed in sucha way that “yes” or “no” (perhaps with provisos) would be an acceptable reply. The inquirystatement should be technically and editorially correct.(2) Proposed Reply(ies). Provide a proposed reply stating what the inquirer believes that thestandard requir
37、es.If in the inquirers opinion, a revision to the standard is needed, recommended wording shallbe provided in addition to information justifying the change.SUBMITTALInquiries shall be submitted in typewritten form; however, legible handwritten inquiries willbe considered. They shall include the name
38、 and mailing address of the inquirer, and may eitherbe sent by email to SecretaryPCCasme.org, or by mail to the following address:SecretaryASME Post ConstructionThree Park AvenueNew York, NY 10016-5990vCopyright ASME International Provided by IHS under license with ASME Not for ResaleNo reproduction
39、 or networking permitted without license from IHS-,-,-ASME PRESSURE TECHNOLOGYPOST CONSTRUCTION COMMITTEE(The following is the roster of the Committee at the time of approval of this Standard.)STANDARDS COMMITTEE OFFICERSD. A. Lang, Sr., ChairJ. R. Sims, Jr., Vice ChairS. J. Rossi, SecretarySTANDARD
40、S COMMITTEE PERSONNELG. A. Antaki, Becht Engineering Co., Inc.J. E. Batey, The Dow Chemical Co.C. Becht IV, Becht Engineering Co., Inc.D. L. Berger, PPL Generation LLCP. N. Chaku, ABB Lummus Global, Inc.C. D. Cowfer, Contributing Member, ConsultantP. C. Hackford, Utah Labor CommissionW. J. Koves, UO
41、P LLCD. A. Lang, Sr., FM GlobalC. R. Leonard, Life Cycle EngineeringE. Michalopoulos, Contributing Member, City of Konzai, GreeceREPAIR AND TESTING SUBCOMMITTEE (PCC)C. Becht IV, Chair, Becht Engineering Co., Inc.C. D. Rodery, Vice Chair, BP North American Products, Inc.S. J. Rossi, Secretary, The A
42、merican Society of MechanicalEngineersG. A. Antaki, Becht Engineering Co., Inc.L. P. Antalffy, Fluor DanielM. A. Boring, Edison Welding InstituteJ. A. Brown, AREVA NPP. N. Chaku, ABB Lummus Global, Inc.H. J. Dammeyer, The Ohio State UniversityN. Y. Faransso, KBRS. J. Findlan, EPRI RRACB. F. Hantz, E
43、xxonMobil Research and Engineering Co.C. R. Harley, General Physics Corp.W. F. Hart, Furmanite America, Inc.viK. Mokhtarian, ConsultantC. C. Neely, Becht Engineering Co., Inc.T. M. Parks, The National Board of Boiler and Pressure VesselInspectorsJ. T. Reynolds, ConsultantS. C. Roberts, Shell Global
44、Solutions US, Inc.C. D. Rodery, BP North American Products, Inc.S. J. Rossi, The American Society of Mechanical EngineersC. W. Rowley, The Wesley Corp.M. E. G. Schmidt, ConsultantJ. R. Sims, Jr., Becht Engineering Co., Inc.D. B. Kadakia, T. D. Williamson, Inc.W. J. Koves, UOP LLCK. Mokhtarian, Consu
45、ltantW. F. Newell, Jr., W. F. Newell symbolE corrected to read Ec; and definitionsfor Ldefect, Swa, andSwhadded(9) Paragraph 3.2 revised in its entirety(10) Paragraph 3.3 revised in its entirety(11) Paragraph 3.4 revised in its entirety(12) Table 1 revised(13) In Table 2, under Materialspreparation,
46、 “resin” replaced with“polymer”(14) Paragraph 4.1 revised in its entirety(15) Paragraph 4.3 revised in its entirety(16) Paragraph 5.1 revised in its entirety(17) Paragraph 5.2 revised in its entirety(18) Section 6 revised in its entirety(19) In Table 3, entry for Interfacerevised; all references to
47、“resin”replaced with “polymer”(20) References in section 7 updated169 Article 4.2, Mandatory (1) Paragraph II-1 revised in its entiretyAppendix II (2) In II-2, subparas. (a), (b), and (d)revised(3) Paragraph II-3 revised in its entiretyviiiCopyright ASME International Provided by IHS under license w
48、ith ASME Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-Page Location Change170 Article 4.2, Mandatory (1) Paragraph III-1 revised in its entiretyAppendix III (2) Paragraph III-2 revised in its entirety171 Article 4.2, Mandatory (1) Paragraph IV-1 revised in its e
49、ntiretyAppendix IV (2) Paragraph IV-2.3 revised in its entirety172 Article 4.2, Mandatory (1) Paragraph V-1 revised in its entiretyAppendix V (2) Paragraph V-2 revised in its entirety(3) In para. V-3(c), term “resin” replacedwith “polymer”(4) Paragraph V-4 revised in its entirety(5) Paragraph V-5(b)(2) revised173 Article 4.2, Mandatory (1) In VI-1, term disbondment addedAppendix VI
