BS EN 14870-2-2004 石油和天然气工业.管道运输系统的吸入管弯头、配件和法兰 第2部分 管件.pdf

BRITISH STANDARD BS EN 14870-22004 Petroleum and natural gas industries Induction bends, fittings and flanges for pipeline transportation systems Part 2 Fittings The European Standard EN 14870-22004 has the status of a British Standard ICS 23.040.40; 75.200 BS EN 14870-22004 This British Standard was published under the authority of the Standards Policy and Strategy Committee on 20 January 2005 BSI 20 January 2005 ISBN 0 580 45313 8 National foreword This British Standard is the official English language version of EN 14870-22004. The UK participation in its preparation was entrusted by Technical Committee PSE/17, Materials and equipment for petroleum, petrochemical and natural gas industries, to Subcommittee PSE/17/2, Transmission pipelines, which has the responsibility to A list of organizations represented on this subcommittee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests ined; monitor related international and European developments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 34, an inside back cover and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. DateComments EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 14870-2 December 2004 ICS 23.040.40; 75.200 English version Petroleum and natural gas industries - Induction bends, fittings and flanges for pipeline transportation systems - Part 2 Fittings ISO 15590-22003 modified Industries du ptrole et du gaz naturel - Coudes dinduction, raccords et brides pour systmes de transport par conduites - Partie 2 Raccords ISO 15590-22003 modifie Erdl- und Erdgasindustrie - Im Induktionsverfahren hergestellte Rohrbgen, Fittings und Flansche fr Rohrleitungstransportsysteme -Teil 2 Fittings ISO 15590- 22003 modifiziert This European Standard was approved by CEN on 30 September 2004. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the Central Secretariat or to any CEN member. This European Standard exists in three official versions English, French, German. A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre rue de Stassart, 36 B-1050 Brussels 2004 CENAll rights of exploitation in any and by any means reserved worldwide for CEN national Members. Ref. No. EN 14870-22004 E EN 14870-22004 E 2 Contents page Explanatory Note ................................................................................................................................................3 Foreword..............................................................................................................................................................4 Introduction.........................................................................................................................................................5 1 Scope ......................................................................................................................................................6 2 Normative references............................................................................................................................6 3 Terms and definitions ...........................................................................................................................8 4 Symbols and abbreviated terms ..........................................................................................................8 5 Designation ..........................................................................................................................................10 6 Pressure rating and design ................................................................................................................10 6.1 General..................................................................................................................................................10 6.2 Tees and headers.................................................................................................................................10 6.3 Extruded outlet headers......................................................................................................................10 7 Ination to be supplied by the purchaser ...................................................................................11 7.1 Principal ination...........................................................................................................................11 7.2 Supplementary ination................................................................................................................11 8 Manufacturing......................................................................................................................................12 8.1 Manufacturing procedure specification ............................................................................................12 8.2 Starting material...................................................................................................................................13 8.3 Fitting manufacture .............................................................................................................................13 9 Testing and inspection........................................................................................................................15 9.1 General requirements..........................................................................................................................15 9.2 Extent of testing and inspection........................................................................................................15 9.3 Chemical composition ........................................................................................................................17 9.4 Mechanical testing...............................................................................................................................17 9.5 Non-destructive testing.......................................................................................................................23 9.6 Dimensions...........................................................................................................................................25 9.7 Gauging ................................................................................................................................................25 9.8 Hydrostatic testing ..............................................................................................................................25 10 Inspection document...........................................................................................................................25 11 Marking.................................................................................................................................................25 Annex A normative Design calculations.....................................................................................................27 Annex B normative Proof test......................................................................................................................30 Annex ZA normative Normative references to international publications with their corresponding European publications........................................................................................................................33 Bibliography......................................................................................................................................................34 EN 14870-22004 E 3 Explanatory Note ISO 15590-22003, developed within ISO/TC 67 SC 2, has been taken over as a European Standard EN 14870-2 ISO 15590-22003 modified. The scope of ISO/TC 67/SC 2 is pipeline transportation systems for the petroleum and natural gas industries without exclusions. However in CEN, the scopes of CEN/TC 12 and CEN/TC 234 overlapped until 1995.This scope overlap caused problems for the parallel procedure for the above-mentioned items. The conflict in scope was resolved when both the CEN/Technical Committees and the CEN/BT took the following resolution Resolution BT 38/1995 Subject Revised scope of CEN/TC 12 “BT endorses the conclusions of the coordination meeting between CEN/TC 12 “Materials, equipment and offshore structures for petroleum and natural gas industries” and CEN/TC 234 “Gas supply” and modifies the CEN/TC 12 scope, to read “Standardization of the materials, equipment and offshore structures used in drilling, production, refining and the transport by pipelines of petroleum and natural gas, excluding on-land supply systems used by the gas supply industry and those aspects of offshore structures covered by IMO requirement ISO/TC 8. The standardization is to be achieved wherever possible by the adoption of ISO Standards.” Resulting from Resolution BT 38/1995, “gas supply on land“ has been excluded from the scope of ISO 15590-22003 for the European adoption by CEN/TC 12. Equivalence with European Standards is provided in Annex ZA. EN 14870-22004 E 4 Foreword The text of ISO 15590-22003 has been prepared by Technical Committee ISO/TC 67 “Materials, equipment and offshore structures for petroleum, petrochemical and natural gas industries“ of the International Organization for Standardization ISO and has been taken over as EN 14870-22004 by Technical Committee CEN/TC 12 “Materials, equipment and offshore structures for petroleum, petrochemical and natural gas industries”, the secretariat of which is held by AFNOR. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by June 2005, and conflicting national standards shall be withdrawn at the latest by June 2005. This document includes a Bibliography. International Standard ISO 15590-2 was prepared by Technical Committee ISO/TC 67, Materials, equipment and offshore structures for petroleum, petrochemical and natural gas industries, Subcommittee SC2, Pipeline transportation systems. EN 14870 consists of the following parts, under the general title Petroleum and natural gas industries Induction bends, fittings and flanges for pipeline transportation systems  Part 1 Induction bends ISO 15590-12001 modified  Part 2 Fittings ISO 15590-22003 modified The following part is under preparation  Part 3 Flanges According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EN 14870-22004 E 5 Introduction Users of this document should be aware that further or differing requirements may be needed for individual applications. This document is not intended to inhibit a manufacturer from offering, or the purchaser from accepting, alternative equipment or engineering solutions for the individual application. This can be particularly applicable where there is innovative or developing technology. Where an alternative is offered, the manufacturer should identify any variations from this document and provide details. EN 14870-22004 E 6 1 Scope This document specifies the technical delivery conditions for unalloyed or low-alloy steel seamless and welded pipeline fittings for use in pipeline transportation systems for the petroleum and natural gas industries as defined in EN 14161. This document is applicable to welding-end fittings such as elbows, caps, tees, single or multiple extruded headers, reducers, and transition sections made from seamless and welded pipe of unalloyed or low-alloy steels. This document specifies three classes of fitting corresponding to increasing quality requirements in accordance with the technical delivery conditions of ISO 3183 for pipe as indicated in Table 1. Table 1 Fitting class and corresponding pipe standard Fitting class Corresponding pipe standard Class A ISO 3183-1 Class B ISO 3183-2 Class C ISO 3183-3 This document is not applicable to the selection of the fitting class. This document is not applicable to the materials for, or the attachment of, factory-welded extensions. On-land supply systems used by the gas supply industry are excluded from the scope of this document. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document including any amendments applies. EN 287-1, Qualification test of welders Fusion welding Part 1 Steels. EN 14161, Petroleum and natural gas industries - Pipeline transportation systems ISO 136232000 modified. EN ISO 3771997, Steel and steel products - Location and preparation of samples and test pieces for mechanical