ASMEPCC-2-2022 (RevisionofASMEPCC-2-2018) Repair of Pressure Equipment and Piping AN AMERICAN NATIONAL STANDARD E TheAmericanSocietyof MechanicalEngineers
ASMEPCC-2-2022 (Revision ofASMEPCC-2-2018) Repair of Pressure Equipment and Piping ANAMERICAN NATIONAL STANDARD Mechanical Engineers TheAmericanSocietyof Two Park Avenue New York NY 10016 USA
Date of Issuance: September 2 2022 The next edition of this Standard is scheduled for publication in 2026. ASME issues written replies to inquiries concerning interpretations of technical aspects of this Standard. Interpretations are published ontheCommiteeweb page andunder actions ofthe ASME PCC Committee may be published as Cases. Cases are published on the ASME website under the PCC Committee Page at go./PCCmittee as they are issued. Errata to codes and standards may be posted on the ASME website under the Committee Pages to provide corrections to incorrectlypublished items or tocorrect typographical or grammatical errorsin codes and standards. Such errata shallbe used on the date posted. Ae aqeee udoue s aa dosedu e pun aq ee d receive an e-mail notification when errata are posted to a particular code or standard. This option can be found on the appropriate Committee Page after selecting “Errata* in the *Publication Information" section. ASME is the registered trademark of The American Society of Mechanical Engineers. This code rstandard was develope under proceduresaccreited asmeeting the criteria frAmericanNational Standards. Thestandards mittee that approved the code or standard was balanced to ensure that individuals from petent and concerned interests had an opportunityto participate. The proposed code orstandardwasmade available for publicreview and ment which provided an opportunity e-e-qnd au pue sauale uosenu eapee usnpu wouj ndu sqnd leuoppe o ASME does notapprove *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 aserted in connection with any items mentioned in this document and does not undertake to insure anyone utilizing astandard against liability frnfringement of anyaliableletters patent nres ASME aumeanysuchlilty. Usersof ode orstandard areexrelyadvised that detenatinf thealiity f anuh patent rihts and therisk ofifringement f such rights is entirely their own responsibility. Participation by federal agency representatives or persons afiliated with industry is not to be interpreted as government or industry endorsement of this code or standard. ASME accepts responsiblity for only those interpretations of this document issued in accordance with the estabished ASME procedures and policies which precludes the issuance of interpretations by individuals. No part of this document may be reproduced in any form without the prior written permission of the publisher. in an electronic retreval system or otherwise The American Society of Mechanical Engineers Two Park Avenue New York NY 10016-5990 Copyright @ 2022 by THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS All rights reserved Printed in U.S.A.
CONTENTS Foreword JAX Committee Roster xvil Correspondence With the PCC Committee . xix Summary of Changes xxl Part 1 Scope Organization and Intent Article 101 Introduction.. 1 101-1 Scope . . 101-2 Organization . .. - 1 101-3 Intent . 1 Part 2 Welded Repairs Article 201 Butt-Welded Insert Plates in Pressure Components . 201-1 Description . . 201-2 Limitations . 4 201-3 Design 5 201-4 Fabrication . 201-5 Examination of Welds 9 201-6 Pressure Testing 9 Article 202 External Weld Buildup to Repair Internal Thinning 11 202-1 Description . . 11 202-2 Limitations 11 202-3 Design - . 11 202-4 Fabrication 14 202-5 Examination . 15 202-6 Testing - - 16 202-7 References 16 Article 203 Seal-Welded Threaded Connections and Seal Weld Repairs 17 203-1 Description 17 203-2 Limitations 17 203-3 Design .. . 18 203-4 Fabrication . - 18 203-5 Examination 18 203-6 Testing .. 18 203-7 References 19 Article 204 Welded Leak Box Repair 20 204-1 Description . 20 204-2 Limitations 20 204-3 Design 21 204-4 Fabrication . 22
204-5 Examination 23 204-6 Testing - 23 Article 205 Weld Ring Gaskets (Welded Lip Seals) 24 205-1 Description - 24 205-2 Limitations . 24 205-3 Design .... 24 205-4 Fabrication . 26 205-5 28 205-6 82 205-7 References - 28 Article 206 Full Encirclement Steel Reinforcing Sleeves for Piping 30 206-1 Description 206-2 Cautions and Limitations 206-3 Design . . 31 206-4 Fabrication . 88 206-6 Testing - - 35 206-7 References 36 Article 207 Fillet Welded Patches With Reinforcing Plug Welds . . 37 207-1 Description - 37 207-2 37 207-3 Design .. 37 207-4 Fabrication . . . 41 207-5 Examination . 42 207-6 Testing . 42 207-7 References 42 Article 208 Alternatives to Traditional Welding Preheat ... . .. 43 208-1 Description . 43 208-2 Limitations . - 43 208-3 Design ... . 43 208-4 Fabrication . 45 208-5 Examination 46 208-6 Testing .... 47 208-7 References . 47 Article 209 Alternatives to Postweld Heat Treatment ....... . . 49 209-1 Description 49 209-2 Limitations 49 209-3 Design .. . 50 209-4 Fabrication . . 50 209-5 Examination . - 50 209-6 Testing .. ... 51 209-7 References 51 Article 210 In-Service Welding Onto Carbon Steel Pressure Components or Pipelines .. . 52 210-1 Description 52 210-2 Limitations . 53 iv
ASME PCC-2-2022压力设备和管道维修（英文版）.pdf
