资源描述：
BRITISH STANDARD BS EN 14870-32006 Petroleum and natural gas industries Induction bends, fittings and flanges for pipeline transportation systems Part 3 Flanges The European Standard EN 14870-32006 has the status of a British Standard ICS 23.040.60; 75.200 BS EN 14870-32006 This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 March 2006 BSI ISBN 0 580 48001 1 National foreword This British Standard is the official English language version of EN 14870-32006. 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 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 23 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 14870-3 February 2006 ICS 23.040.60; 75.200 English Version Petroleum and natural gas industries - Induction bends, fittings and flanges for pipeline transportation systems - Part 3 Flanges ISO 15590-32004, modified Industries du ptrole et du gaz naturel - Coudes dinduction, raccords et brides pour systmes de transport par conduites - Partie 3 Brides ISO 15590-32004, modifi Erdl- und Erdgasindustrie - Im Induktionsverfahren gefertigte Rohrbgen, Fittings und Flansche fr Rohrleitungs-Transportsysteme - Teil 3 Flansche ISO 15590-32004, modifiziert This European Standard was approved by CEN on 5 January 2006. 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, Romania, 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 2006 CENAll rights of exploitation in any and by any means reserved worldwide for CEN national Members. Ref. No. EN 14870-32006 E EN 14870-32006 E 2 Contents Page Explanatory note.................................................................................................................................................3 Foreword..............................................................................................................................................................4 Introduction.........................................................................................................................................................5 1 Scope ......................................................................................................................................................7 2 Normative references............................................................................................................................7 3 Terms and definitions ...........................................................................................................................9 4 Symbols and abbreviated terms ........................................................................................................10 5 Designation of flanges ........................................................................................................................10 6 Pressure class and design .................................................................................................................11 7 Ination to be supplied by the purchaser ...................................................................................11 7.1 Principal ination...........................................................................................................................11 7.2 Supplementary ination................................................................................................................12 8 Manufacturing......................................................................................................................................12 8.1 Manufacturing procedure specification ............................................................................................12 8.2 Starting material...................................................................................................................................12 8.3 Hubs......................................................................................................................................................12 8.4 Heat treatment......................................................................................................................................13 9 Testing and inspection........................................................................................................................13 9.1 General requirements..........................................................................................................................13 9.2 Extent of testing and inspection........................................................................................................13 9.3 Chemical composition ........................................................................................................................14 9.4 Physical testing....................................................................................................................................14 9.5 NDT........................................................................................................................................................18 9.6 Dimensions...........................................................................................................................................20 9.7 Hydrostatic testing ..............................................................................................................................21 9.8 Weldability............................................................................................................................................21 9.9 Repair welding .....................................................................................................................................21 10 Documentation.....................................................................................................................................21 10.1 Inspection document...........................................................................................................................21 10.2 Manufacturing record book................................................................................................................21 11 Marking.................................................................................................................................................22 Bibliography......................................................................................................................................................23 EN 14870-32006 E 3 Explanatory note ISO 15590-32004, developed within ISO/TC 67 SC 2, has been taken over as a European Standard EN 14870-3 ISO 15590-32004, 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 15590-32004 for the European adoption by CEN/TC 12. EN 14870-32006 E 4 Foreword This European Standard EN 14870-32006 has been prepared 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 August 2006, and conflicting national standards shall be withdrawn at the latest by August 2006. The text of ISO 15590-3 was prepared by Technical Committee ISO/TC 67, Materials, equipment and offshore structures for petroleum, petrochemical and natural gas industries, Subcommittee SC 2, Pipeline transportation systems. With respect to ISO 15590-3 the scope of this European Standard excludes on-land supply systems used by the gas supply industry. Attention is drawn to the possibility that some of the elements of this European Standard may be the subject of patent rights. ISO and CEN shall not be held responsible for identifying any or all such patent rights. 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 Part 3 Flanges ISO 15590-32004 modified The ISO standards listed in Clause 2 “Normative references“ correspond to the following European Standards ISO 377 Steel and steel products Location and preparation of samples and test pieces for mechanical testing EN ISO 377 ISO 2566-1 Steel Conversion of elongation values Part 1 Carbon and low alloy steels EN ISO 2566-1 ISO 6507-1 Metallic materials Vickers hardness test Part 1 Test EN ISO 6507-1 ISO 13623 Petroleum and natural gas industries Pipeline transportation systems EN 14161 ISO 136232000, modified ISO 15156-22003 Petroleum, petrochemical and natural gas industries Materials for use in H2S-containing environments in oil and gas production Part 2 Cracking-resistant carbon and low alloy steels, and the use of cast iron EN ISO 15156-22003 EN 14870-32006 E 5 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, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EN 14870-32006 E 6 Introduction Users of this part of EN 14870 should be aware that further or differing requirements may be needed for individual applications. This part of EN 14870 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 part of EN 14870 and provide details. EN 14870-32006 E 7 1 Scope This part of EN 14870 applies to weldneck and blind flanges full face, raised face, and RTJ groove as well as anchor, swivel-ring flanges and orifice flanges. This part of EN 14870 specifies the technical requirements for carbon steel and low-alloy steel forged flanges for use in pipeline transportation systems for the petroleum and natural gas industries as defined in ISO 13623. This part of EN 14870 designates those categories of flanges that meet the industrys need to match ISO 3183 pipe. These flanges are for normal and low-temperature service and include supplementary requirements where required for sour service. Materials for, or the attachment of, factory-welded extensions, bolting materials, gaskets, slip-on flanges or flanged fittings are not covered by this part of EN 14870. This part of EN 14870 is not applicable to integrally cast or forged flanges for valves, pumps or other equipment. This part of EN 14870 does not cover the selection of the flange category or pressure class. Sizes and pressure classes listed in ISO 7005-1 and applicable to this part of EN 14870 are as follows ⎯ DN 10 NPS 1/2 to DN 1500 NPS 60; ⎯ PN 20 class 150, PN 50 class 300, PN 100 class 600, PN 150 class 900, PN
展开阅读全文
