1、Recommended Practice for the Repair and Remanufacture of Pipeline ValvesAPI RECOMMENDED PRACTICE 6DR SECOND EDITION, MAY 2012Recommended Practice for the Repair and Remanufacture of Pipeline ValvesUpstream SegmentAPI RECOMMENDED PRACTICE 6DRSECOND EDITION, MAY 2012Special NotesAPI publications neces
2、sarily address problems of a general nature. With respect to particular circumstances, local, state, and federal laws and regulations should be reviewed.Neither API nor any of APIs employees, subcontractors, consultants, committees, or other assignees make any warranty or representation, either expr
3、ess or implied, with respect to the accuracy, completeness, or usefulness of the information contained herein, or assume any liability or responsibility for any use, or the results of such use, of any information or process disclosed in this publication. Neither API nor any of APIs employees, subcon
4、tractors, consultants, or other assignees represent that use of this publication would not infringe upon privately owned rights.API publications may be used by anyone desiring to do so. Every effort has been made by the Institute to assure the accuracy and reliability of the data contained in them;
5、however, the Institute makes no representation, warranty, or guarantee in connection with this publication and hereby expressly disclaims any liability or responsibility for loss or damage resulting from its use or for the violation of any authorities having jurisdiction with which this publication
6、may conflict.API publications are published to facilitate the broad availability of proven, sound engineering and operating practices. These publications are not intended to obviate the need for applying sound engineering judgment regarding when and where these publications should be utilized. The f
7、ormulation and publication of API publications is not intended in any way to inhibit anyone from using any other practices.Any manufacturer marking equipment or materials in conformance with the marking requirements of an API standard is solely responsible for complying with all the applicable requi
8、rements of that standard. API does not represent, warrant, or guarantee that such products do in fact conform to the applicable API standard.Users of this Recommended Practice should not rely exclusively on the information contained in this document. Sound business, scientific, engineering, and safe
9、ty judgment should be used in employing the information contained herein. All rights reserved. No part of this work may be reproduced, translated, stored in a retrieval system, or transmitted by any means, electronic, mechanical, photocopying, recording, or otherwise, without prior written permissio
10、n from the publisher. Contact the Publisher, API Publishing Services, 1220 L Street, NW, Washington, DC 20005.Copyright 2012 American Petroleum InstituteForewordNothing contained in any API publication is to be construed as granting any right, by implication or otherwise, for the manufacture, sale,
11、or use of any method, apparatus, or product covered by letters patent. Neither should anything contained in the publication be construed as insuring anyone against liability for infringement of letters patent.Shall: As used in a standard, “shall” denotes a minimum requirement in order to conform to
12、the specification.Should: As used in a standard, “should” denotes a recommendation or that which is advised but not required in order to conform to the specification. This document was produced under API standardization procedures that ensure appropriate notification and participation in the develop
13、mental process and is designated as an API standard. Questions concerning the interpretation of the content of this publication or comments and questions concerning the procedures under which this publication was developed should be directed in writing to the Director of Standards, American Petroleu
14、m Institute, 1220 L Street, NW, Washington, DC 20005. Requests for permission to reproduce or translate all or any part of the material published herein should also be addressed to the director.Generally, API standards are reviewed and revised, reaffirmed, or withdrawn at least every five years. A o
15、ne-time extension of up to two years may be added to this review cycle. Status of the publication can be ascertained from the API Standards Department, telephone (202) 682-8000. A catalog of API publications and materials is published annually by API, 1220 L Street, NW, Washington, DC 20005.Suggeste
16、d revisions are invited and should be submitted to the Standards Department, API, 1220 L Street, NW, Washington, DC 20005, standardsapi.org.iiiContentsPage1 Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
17、 . . . . . . . . . . . . . 12 Normative References. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Terms, Definitions, and Abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
18、 . . . . . . . . . . . . . . . . . . . 23.1 Terms and Definitions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23.2 Abbreviations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
19、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 Preparation for Shipment to the Reconditioner. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 Control of Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
20、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 Disassembly and Cleaning of Valves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 Evaluation of Components. . . . . . . . . . . . . . . . . . . . . .
21、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48 Repair/Remanufacture/Replacement of Valve Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48.1 Control of Manufacturing Operations . . . . . . . . . . . . . . . . .
22、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48.2 Inspection of Valve Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48.3 Replacement Parts and Material . . . . . . . . . . . .
23、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48.4 Fabrication Welding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58.5 Repair Welding . . . . . . . . .
24、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58.6 Nondestructive Examination (NDE). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59 Reassembly . .
25、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 510 Final Acceptance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
26、. . . . . . . . 610.1 Pressure Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 610.2 Notification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
27、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 611 Equipment Marking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 611.1 Nameplates. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
28、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 611.2 Marking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 612 Preparation for Shipment
29、 and Short Term Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 713 Documentation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 713.1 General Docum
30、entation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 713.2 Documentation for 2 in. (DN 50) and Larger Valves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8Annex A (inf
31、ormative) Minimum Requirements for Evaluation and Reconditioning of Parts . . . . . . . . . . . . . . . 9Bibliography . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11v1Recommended Practi
32、ce for the Repair and Remanufacture of Pipeline Valves1 ScopeThis recommended practice provides guidelines for the repair and remanufacture of steel ball, check, gate, and plug valves normally used in pipeline applications, as defined by API 6D.This recommended practice covers repair or remanufactur
33、ing of end users (owners) valves for continued service in the owners production applications. It does not cover repair or remanufacture of used or surplus valves intended for resale.Repaired or remanufactured valves may not meet API 6D and/or the OEM original product definition (OPD) for new valves.
34、The owner is responsible for the correct application of valves repaired or remanufactured per this document.Field repair is outside the scope of this document.2 Normative ReferencesThe following documents contain provisions which, through reference in this text, constitute provisions of this standar
35、d. For dated references, subsequent amendments to, or revisions of, any of these publications do not apply. However, parties to agreements based on this standard are encouraged to investigate the possibility of applying the most recent editions of the documents listed below. For undated references,
36、the latest edition of the document referred to applies. Referenced standards may be either the applicable edition shown herein or the latest revision, provided the reconditioner can show that the latest edition meets or exceeds requirements of the specific edition listed. When the latest edition is
37、specified, it may be used on issue, and shall become mandatory six months from the date of the revision.API Specification 6D, Specification for Pipeline ValvesASME Boiler and Pressure Vessel Code, Section V 1Non-Destructive EvaluationASME Boiler and Pressure Vessel Code, Section IX, Welding and Braz
38、ing QualificationsASNT SNT-TC-1A 2, Recommended Practice for Personnel Qualification and Certification in Nondestructive TestingISO 9712 3, Non-destructive Testing Qualification and Certification of PersonnelNACE MR0175/ISO 15156 4, Materials for Use in H2S-containing Environments in Oil and Gas Pro
39、duction1ASME International, 3 Park Avenue, New York, New York 10016-5990, www.asme.org.2American Society for Nondestructive Testing, Inc., 1711 Arlington Lane, P.O. Box 28518, Columbus, Ohio 43228-0518, www.asnt.org.3International standard Organization, Case postale 56, CH-1211 Geneva 20, www.iso.or
40、g.4NACE International (formerly the National Association of the Corrosion Engineers), 1440 South Creek Drive, P.O. Box 218340, Houston, Texas 77218-8340, www.nace.org.2 API RECOMMENDED PRACTICE 6DR3 Terms, Definitions, and AbbreviationsFor the purposes of this document, the following definitions app
41、ly.3.1 Terms and Definitions3.1.1 end user, ownerThe entity that holds title to or applies the valve to a particular process.3.1.2 original product definitionComplete definition of the requirements for the original assembled equipment, single equipment unit, or component part, including specified li
42、mits and tolerances, health, safety and environmental requirements, limitations of use, owner specific requirements, design acceptance criteria, materials of construction, materials processing requirements and physical properties, physical dimensions, and requirements for manufacturing process contr
43、ols, inspection, assembly and testing, marking, handling, storage, maintenance, and records requirements.3.1.3 reconditionRepair and/or remanufacture.3.1.4 remanufactureActivities involving disassembly, reassembly, and testing with or without replacement of parts. Machining, welding, heat-treating,
44、other manufacturing operations, or replacement of bodies may be employed.3.1.5 repairActivities involving disassembly, reassembly, and testing with or without replacement of parts. Repair does not include machining, welding, and heat-treating, other manufacturing operations, or replacement of bodies
45、. Buffing, polishing, deburring, and other minimal removal processes are not considered machining and may be employed in repair processes.3.2 AbbreviationsBOM Bill-of-materialMSDS Material safety data sheetNDE Nondestructive examinationNORM Naturally occurring radioactive materialOEM Original equipm
46、ent manufacturerOPD Original product definitionPQR Procedure qualification recordSAE Society of Automotive EngineersWPS Weld procedures specificationWQR Welder qualification recordREPAIR AND REMANUFACTURE OF PIPELINE VALUES 34 Preparation for Shipment to the ReconditionerThe owner shall complete the
47、 following activities before sending the equipment to the reconditioner:a) All pressure shall be removed from valve cavities and accompanying actuators, tanks, etc.b) Hazardous materials shall be removed and cleaned from the valve and accompanying equipment.c) Copy of the material safety data sheet
48、(MSDS) to be provided for the valve service media.d) Valves should be checked for NORM in accordance with the applicable local regulations (region/state/country/province). Valves containing NORM may require special handling and cleaning procedures.5 Control of EquipmentThe valve shall be identified
49、by the owner name/location or other appropriate identifier. Each valve shall be assigned a unique identification number 5. This number shall be traceable back to the pertinent instructions and or information provided by the owner.A visual inspection shall be conducted to determine if the valve can be reconditioned. If valve cannot be reconditioned, notify the owner for disposition instructions.Disposition may include one or more of the following:a) Salvage useable parts.b) Scrap in accordance with the owners instructions.c) Return to the owner.6 Disassembly and Cleaning of ValvesVal
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