BS EN 1759-1-2004 法兰及其接头 管材、阀门、管件及附件用已命名种类的圆形法兰 第1部分：钢法兰NPS1-2到24.pdf

BRITISH STANDARD BS EN 1759-12004 Flanges and their joints Circular flanges for pipes, valves, fittings and accessories, Class designated Part 1 Steel flanges, NPS 1/2 to 24 The European Standard EN 1759-12004 has the status of a British Standard ICS 23.040.60 Licensed Copy Institute Of Technology Tallaght, Institute of Technology, Mon Apr 02 101707 GMT0000 2007, Uncontrolled Copy, c BSI BS EN 1759-12004 This British Standard was published under the authority of the Standards Policy and Strategy Committee on 30 November 2004 BSI 30 November 2004 ISBN 0 580 44924 6 National foreword This British Standard is the official English language version of EN 1759-12004. It supersedes BS 1560-3.11989 which is withdrawn. The UK participation in its preparation was entrusted to Technical Committee PSE/15, Flanges, which has the responsibility to A list of organizations represented on this committee 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 74, 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 Licensed Copy Institute Of Technology Tallaght, Institute of Technology, Mon Apr 02 101707 GMT0000 2007, Uncontrolled Copy, c BSI EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 1759-1 November 2004 ICS 23.040.60 English version Flanges and their joints - Circular flanges for pipes, valves, fittings and accessories, Class designated - Part 1 Steel flanges, NPS 1/2 to 24 Brides et leurs assemblages - Brides circulaires pour tubes, appareils de robinetterie, raccords et accessoires, dsignes Class - Partie 1 Brides en acier NPS 1/2 24 Flansche und ihre Verbindungen - Runde Flansche fr Rohre, Armaturen, stcke und Zubehrteile, nach Class bezeichnet - Teil 1 Stahlflansche, NPS 1/2 bis 24 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 1759-12004 E Licensed Copy Institute Of Technology Tallaght, Institute of Technology, Mon Apr 02 101707 GMT0000 2007, Uncontrolled Copy, c BSI EN 1759-12004 E 2 Contents Page Foreword......................................................................................................................................................................3 Introduction.................................................................................................................................................................4 1 Scope ..............................................................................................................................................................5 2 Normative references....................................................................................................................................5 3 Terms and definitions ...................................................................................................................................6 4 Designation ....................................................................................................................................................7 5 General requirements....................................................................................................................................8 Annex A inative Recommendations for weld ends of weld-neck flanges...............................................65 Annex B inative Classification of bolting materials ..................................................................................66 Annex C inative Use of metric bolting in lieu of imperial bolting.............................................................67 Annex D inative Determination of p/T ratings for flanges using EN materials.......................................69 Annex E normative Approximate masses of flanges and collars ....................................................................70 Bibliography..............................................................................................................................................................74 Licensed Copy Institute Of Technology Tallaght, Institute of Technology, Mon Apr 02 101707 GMT0000 2007, Uncontrolled Copy, c BSI w w w . b z f x w . c o m EN 1759-12004 E 3 Foreword This document EN 1759-12004 has been prepared by Technical Committee CEN/TC 74 “Flanges and their joints“ the secretariat of which is held by DIN. 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 May 2005, and conflicting national standards shall be withdrawn at the latest by May 2005. EN 1759 consists of the following parts  Part 1 Steel flanges;  Part 3 Copper alloy flanges1;  Part 4 Aluminium alloy flanges1. This document includes a Bibliography. 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. 1 To be published Licensed Copy Institute Of Technology Tallaght, Institute of Technology, Mon Apr 02 101707 GMT0000 2007, Uncontrolled Copy, c BSI w w w . b z f x w . c o m EN 1759-12004 E 4 Introduction When Technical Committee, CEN/TC 74, commenced its work of producing this European standard it took as its basis, the International Standard, ISO 7005-1, Steel flanges. In taking this decision, CEN/TC 74, agreed that this standard would differ significantly from the ISO standard in respect of the following a Whereas ISO 7005-1 included in its scope both the original DIN based flanges and also the original ANSI/ASME based flanges, EN 1759-1 contains only the flanges with ANSI/ASME origin ASME B16.5. CEN/TC 74 has produced a separate series of standards, EN 1092 Parts 1, 2, 3 and 4, dealing with the DIN based flanges in PN designations; b In this standard, the flanges are Class designated not PN designated as in the ISO standard and those dimensions taken from ASME B16.5 are hard metricated. Consequently, whilst the mating dimensions, the flange and facing types and designations are compatible with those given in ISO 7005-1, it is important to take account of the following differences which exist in EN 1759-1 1 The use of inch bolting requires the use of suitable gaskets, not necessarily compatible with the gaskets used with ISO 7005-1 flanges for metric bolts. 2 This standard specifies grades of ASTM steels similar to those specified in ISO 7005-1, but in addition permits the use of grades of European steels according to EN 1092-1; Licensed Copy Institute Of Technology Tallaght, Institute of Technology, Mon Apr 02 101707 GMT0000 2007, Uncontrolled Copy, c BSI w w w . b z f x w . c o m EN 1759-12004 E 5 1 Scope This European Standard for a single system of flanges specifies requirements for circular steel flanges in Class designations Class 150 to Class 2 500 and nominal sizes from NPS to NPS 24. NOTE The relationship between nominal size DN and nominal size NPS is given for reference purposes in Tables 9 to 14. This standard specifies the flange types and their facings, dimensions, tolerances, threading, bolt sizes, flange jointing face surface finish, marking, materials and pressure/temperature ratings. This standard does not apply to flanges made from bar stock by turning, or to flanges of types 11, 12, 13, 14 and 15 made from plate material. 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 1515-1, Flanges and their joints Bolting Part 1 Selection of bolting prEN 1515-3, Flanges and their joints Bolting Part 3 Classification of bolt materials for steel flanges, class designated EN 10025, Hot rolled products of non-alloy structural steels Technical delivery conditions EN 10028-2, Flat products made of steels for pressure purposes Part 2 Non alloy and alloy steels with specified elevated temperature properties EN 10028-3, Flat products made of steels for pressure purposes Part 3 Weldable fine grain steels, normalized EN 10028-4, Flat products made of steels for pressure purposes Part 4 Nickel alloy steels with specified low temperature properties EN 10028-7, Flat products made of steels for pressure purposes Part 7 Stainless steels EN 10213-2, Technical delivery conditions for steel castings for pressure purposes Part 2 Steel grades for use at room temperature and elevated temperatures EN 10213-3, Technical delivery conditions for steel castings for pressure purposes Part 3 Steel grades for use at low temperatures EN 10213-4, Technical delivery conditions for steel castings for pressure purposes Part 4 Austenitic and austenitic-ferritic steel grades EN 10222-2, Steel forgings for pressure purposes Part 2 Ferritic and martensitic steels with specified elevated temperature properties EN 10222-3, Steel forgings for pressure purposes Part 3 Nickel steels with specified low temperature properties EN 10222-4, Steel forgings for pressure purposes Part 4 Weldable fine grain steels with high proof strength EN 10222-5, Steel forgings for pressure purposes - Part 5 Martensitic, austenitic and austenitic-ferritic stainless steels EN ISO 887, Plain washers for metric bolts, screws and nuts for general purposes - General plan ISO 8872000 EN ISO 6708, Pipe components Definition and selection of DN nominal size ISO 67081995 ISO 4955, Heat-resisting steels and alloys Licensed Copy Institute Of Technology Tallaght, Institute of Technology, Mon Apr 02 101707 GMT0000 2007, Uncontrolled Copy, c BSI w w w . b z f x w . c o m EN 1759-12004 E 6 ISO 4991, Steel castings for pressure purposes ISO 9327-1, Steel forgings and rolled or forged bars for pressure purposes Technical delivery conditions Part 1 General requirements ISO 9327-2, Steel forgings and rolled or forged bars for pressure purposes Technical delivery conditions Part 2 Non-alloy and alloy Mo, Cr and CrMo steels with specified elevated temperature properties ISO 9328-2, Steel flat products for pressure purposes Technical delivery conditions Part 2 Non-alloy and alloy steels with specified elevated temperature properties ISO 9328-3, Steel flat products for pressure purposes Technical delivery conditions Part 3 Weldable fine grain steels, normalized ISO 9328-5, Steel flat products for pressure purposes Technical delivery conditions Part 5 Weldable fine grain steels, thermomechanically rolled ASME B16.5 1996 Pipe flanges and flanged fittings NPS through NPS 24 ASME/ANSI B1.20.1, Pipe threads, general purpose inch ASTM A105/A105M, Forgings, Carbon Steel, for Piping Component ASTM A182/A182M, Forged or Rolled Alloy-Steel Pipe Flanges, Forged Fittings, and Valves and Parts for High- Temperature Service ASTM A203/A203M, Pressure Vessel Plates, Alloy Steel, Nickel ASTM A204/A204M, Specification for pressure vessel plates, alloy steel, molybdenum ASTM A216/A216M, Steel Castings, Carbon Suitable for Fusion Welding for High-Temperature Service ASTM A217/A217M, Steel Castings, Martensitic Stainless and Alloy, for Pressure-Containing Parts Suitable for High- Temperature Service ASTM A240/A240M, Heat-Resisting Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels ASTM A325, High-Strength Bolts for Structural Steel Joints ASTM A350/A350M, Forgings, Carbon and Low-Alloy Steel, Requiring Notch Toughness Testing for Piping Components ASTM A351/A351M, Castings, Austenitic, Austenitic-Ferritic Duplex for Pressure-Containing Parts ASTM A352/A352M, Steel Castings, Ferritic and Martensitic, for Pressure-Containing Parts Suitable for Low- Temperature Service ASTM A387/A387M, Pressure Vessel Plates, Alloy Steel, Chromium-Molybdenum ASTM A515/A515M, Pressure Vessel Plates, Carbon Steel, for Intermediate and Higher-Temperature Service ASTM A516/A516M, Pressure Vessel Plates, Carbon Steel, for Moderate and Lower-Temperature Service ASTM A537/A537M, Pressure Vessel Plates, Heat-Treated, Carbon-Manganese-Silicon Steel 3 Terms and definit