AS NZS 4331.1-1995 金属法兰 - 不锈钢法兰1.pdf

AS/NZS 4331.1:1995 ISO 7005-1:1992 Australian/New Zealand Standard Metallic flanges Part 1: Steel flanges AS/NZS 4331.1:1995 This Joint Australian/New Zealand Standard was prepared by Joint Technical Committee ME/1, Pressure Equipment. It was approved on behalf of the Council of Standards Australia on 19 July 1995 and on behalf of the council of Standards New Zealand on 24 October 1995. It was published on 5 December 1995. The following interests are represented on Committee ME/1: A.C.T. Occupational Health and Safety Office Aluminium Development Council, Australia Australian Chamber of Commerce and Industry Australian Institute of Energy Australian Institute of Petroleum Australian Institute of Pressure Equipment Engineers Australian Liquefied Petroleum Gas Association Boiler and Pressure Vessel Manufacturers Association of Australia Bureau of Steel Manufacturers of Australia Department for Industrial Affairs, S.A. Department of Employment, Vocational Education, Training and Industrial Relations, Qld. Department of Labour, New Zealand Department of Occupational Health, Safety and Welfare, W.A. Electricity Corporation of New Zealand Electricity Supply Association of Australia Heavy Engineering Research Association, New Zealand Institute of Metals and Materials, Australasia Institution of Engineers, Australia Insurance Council of Australia Metal Trades Industry Association of Australia National Association of Testing Authorities, Australia New Zealand Engineering Federation New Zealand Petrochemical Users Group New Zealand Timber Industry Federation Occupational Health and Safety Authority, Vic. Tasmania Development and Resources Welding Technology Institute of Australia WorkCover Authority, N.S.W. Work Health Authority, N.T. Review of Standards. To keep abreast of progress in industry, Joint Australian/New Zealand Standards are subject to periodic review and are kept up to date by the issue of amendments or new editions as necessary. It is important therefore that Standards users ensure that they are in possession of the latest edition, and any amendments thereto. Full details of all Joint Standards and related publications will be found in the Standards Australia and Standards New Zealand Catalogue of Publications; this information is supplemented each month by the magazines The Australian Standard and Standards New Zealand, which subscribing members receive, and which give details of new publications, new editions and amendments, and of withdrawn Standards. Suggestions for improvements to Joint Standards, addressed to the head office of either Standards Australia or Standards New Zealand, are welcomed. Notification of any inaccuracy or ambiguity found in a Joint Australian/New Zealand Standard should be made without delay in order that the matter may be investigated and appropriate action taken. AS/NZS 4331.1:1995 Australian/New Zealand Standard Metallic flanges Part 1: Steel flanges PUBLISHED JOINTLY BY: STANDARDS AUSTRALIA 1 The Crescent, Homebush NSW 2140 Australia STANDARDS NEW ZEALAND Level 10, Standards House, 155 The Terrace, Wellington 6001 New Zealand ISBN 0 7337 0007 1 ii PREFACE This Standard was prepared by the Joint Standards Australia/Standards New Zealand Committee ME/1 on Pressure Equipment. It is identical with and has been reproduced from ISO 7005-1:1992, Metallic flanges, Part 1: Steel flanges. The objective of this Standard is to provide designers, manufacturers and users with an international Standard for flanges for use in pressure applications. This Joint Standard is one of the following series that applies to metallic flanges. AS/NZS 4331Metallic flanges 4331.1Part 1:Steel flanges 4331.2Part 2:Cast iron flanges 4331.3Part 3:Copper alloy and composite flanges Under arrangements made between Standards Australia, Standards New Zealand and ISO, users of this Standard are advised that in Australia copyright is vested in Standards Australia and in New Zealand copyright is vested in Standards New Zealand. It is not intended this Standard be a mandatory replacement for any flange Standards already in use in Australia or New Zealand. Before flanges to this Standard are used with flanges of other Standards, compatibility for bolting, strength, gasket seating and the like should be checked. Statements expressed in mandatory terms in notes to text, tables and figures are deemed to be requirements of this Standard. The terms normative and informative have been used in this Standard to define the application of the annex to which they apply. A normative annex is an integral part of a Standard, whereas an informative annex is only for information and guidance. As this Standard is reproduced from an international Standard, the following applies: (a) Its number appears on the cover and title page while the International Standard number appears only on the cover. (b) In the source text, this International Standard should read this Australia/New Zealand Standard. (c) A full point substitutes for a comma when referring to a decimal marker. References to international Standards should be replaced by equivalent Australian Standards, as follows: Reference to International StandardAustralian Standard ISO 7 7-1:1982 7-2:1982 Pipe threads where pressure-tight joints are made on the threads Part 1: Designation,dimensions and tolerances Part 2: Verification by means of limit gauges AS 1722 1722.1 1722.1 Pipe threads of Whitworth form Part 1: Sealing pipe threads Part 1: Sealing pipe threads 261:1973ISO general purpose metric screw threadsGeneral plan 1721Generalpurposemetricscrew threads 887*Plainwashers for metricbolts, screwsandnutsforgeneral purposesGeneral plan *To be published (Revision of ISO 887:1983). iii ISO 6708:1980Pipe components Definition of nominal size AS 7268:1983Pipe components Definition of nominal pressure 7483:1991Dimensionsofgasketsfor use with flanges to ISO 7005 ANSI/ASME B1.20.1:1983 Pipe threads, general purpose (inch) Equivalent National Material Standards may be substituted for those specified in this Standard. ©CopyrightSTANDARDS AUSTRALIA/STANDARDS NEW ZEALAND Users of Standards are reminded that copyright subsists in all Standards Australia and Standards New Zealand publications and software. Except where the Copyright Act allows and except where provided for below no publications or software produced by Standards Australia or Standards New Zealand may be reproduced, stored in a retrieval system in any form or transmitted by any means without prior permission in writing from Standards Australia or Standards New Zealand. Permission may be conditional on an appropriate royalty payment. Australian requests for permission and information on commercial software royalties should be directed to the head office of Standards Australia. New Zealand requests should be directed to Standards New Zealand. Up to 10 percent of the technical content pages of a Standard may be copied for use exclusively in-house by purchasers of the Standard without payment of a royalty or advice to Standards Australia or Standards New Zealand. Inclusion of copyright material in computer softwareprograms is also permittedwithout royalty payment provided such programs are used exclusively in-house by the creators of the programs. Care should be taken to ensure that material used is from the current edition of the Standard and that it is updated whenever the Standard is amended or revised. The number and date of the Standard should therefore be clearly identified. The use of material in print form or in computer software programs to be used commercially, with or without payment, or in commercial contracts is subject to the payment of a royalty. This policy may be varied by Standards Australia or Standards New Zealand at any time. iv CONTENTS Page Section 1: General. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1 1.1Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1 1.2Normative references . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1 1.3Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2 1.4Designation of types, components and facings. . . . . . . . . . . . . . . . . . . . . . . . . . . . .2 Section 2: General requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3 2.1Pressure/temperature ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3 2.2Materials and bolting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3 2.3Repairs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3 2.4Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3 2.5Facings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 2.6Spot-facing or back-facing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 2.7Tolerances . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 2.8Marking. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 2.9Inspection and test. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6 2.10Information to be supplied by the purchaser. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6 Section 3: Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11 Section 4: Tolerances . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .47 First published as AS/NZS 4331.1:1995. v AnnexesPage ABevel for specified wall thicknesses from 5 mm to 22 mm inclusive and greater than 22 mm. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .49 BAcceptable bevel designs for unequal wall thicknesses (pipeline applications) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .50 CRecommended bevel for equal wall thicknessestthe end of the flange hub from 5 mm to 22 mm inclusive and greater than 22 mm (pipeline applications) . . .51 DGuidance on flange materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .52 EGuidance on pressure/temperature ratings. . . . . . . . . . . . . . . . . . . . . . . . . . . .62 FDesign criteria (pipeline applications). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .78 GBibliography. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .79 Tables 1 Surface finish for facings types A, B and E/F (large). . . . . . . . . . . . . . . . . . . . .5 2 Surface finish values for facings types C/D, E/F (small), G/H and J . . . . . . . . . . .5 3 Synoptic table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11 4 Dimensions of flange facings for PN 2,5, PN 6, PN 10, PN 16, PN 25 and PN 4015 5 Dimensions of flange facingsup to nominal size DN 900 for PN 20, PN 50, PN 110, PN 150, PN 260 and PN 420 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17 6 Dimensions of flange facings for nominaL sizes DN 950 to DN 1 500 for PN 20, PN 50, PN 110 and PN 150 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17 7 Dimensions of ring-joint facings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19 8 Dimensions of PN 2,5 flanges. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23 9 Dimensions of PN 6 flanges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25 10 Dimensions of PN 10 flanges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27 11 Dimensions of PN 16 flanges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29 12 Dimensions of PN 20 flanges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31 13 Dimensions of PN 25 flanges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33 14 Dimensions of PN 40 flanges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35 15 Dimensions of PN 50 flanges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37 16 Dimensions of PN 110 flanges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39 17 Dimensions of PN 150 flanges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .41 18 Dimensions of PN 260 flanges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43 19 Dimensions of PN 420 flanges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .45 20 Tolerances. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .47 21 Minimum hub radius after back-facing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .48 vi Page D.1 Basic properties and reference standards for materials used for PN 2,5, PN 6, PN 10, PN 16, PN 25 and PN 40 flanges . . . . . . . . . . . . . . . . . . . . . . . . . . . .53 D.2 Reference standards for materials used for PN 20, PN 50, PN 110, PN 150, PN 260 and PN 420 flanges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .57 D.3 Materials applicable to tables 12, 15, 16 and 17 covering PN 20, PN 50, PN 110 and PN 150 flanges types 05 and 11 in the size range DN 300 and larger for pipeline applications . . . . . . . . . . . . . . . . . . . . . . . . . . .60 E.1 Pressure/temperature (P/T) ratings for flanges made using material groups 1E0 to 6E0 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .63 E.2 Pressure/temperature (P/T) ratings for flanges made using material groups 7E0 to 9E0 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .64 E.3 Pressure/temperature (P/T) ratings for flanges made using austenitic stainless steels (based on 0,2% proof stress), material groups 10E0 to 15E0 . . . . . . .65 E.4 Pressure/temperature (P/T) ratings for flanges made using austenitic stainless steels (based on 1% proof stress), material groups 10E0 to 15E0. . . . . . . .66 E.5 Pressure/temperature (P/T) ratings for flanges made using group 1A1 materials. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .67 E.6 Pressure/temperature (P/T) ratings for flanges made using group 1A2 materials. .