AS-4087-2004.pdf
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1、AS 40872004 (Incorporating Amendment No. 1) Australian Standard Metallic flanges for waterworks purposes AS 40872004 Accessed by UNIVERSITY OF SOUTH AUSTRALIA on 16 Mar 2009 This Australian Standard was prepared by Committee WS-022, Valves For Water Supply Purposes. It was approved on behalf of the
2、Council of Standards Australia on 30 September 2004. This Standard was published on 26 October 2004. The following are represented on Committee WS-022: Australian Chamber of Commerce and Industry Australian Industry Group Certification Interests (Australia) Engineers Australia Master Plumbers Austra
3、lia Plastics Industry Pipe Association of Australia Victorian Employers Chamber of Commerce Water Industry Alliance Water Services Association of Australia Keeping Standards up-to-date Standards are living documents which reflect progress in science, technology and systems. To maintain their currenc
4、y, all Standards are periodically reviewed, and new editions are published. Between editions, amendments may be issued. Standards may also be withdrawn. It is important that readers assure themselves they are using a current Standard, which should include any amendments which may have been published
5、 since the Standard was purchased. Detailed information about Standards can be found by visiting the Standards Web Shop at .au and looking up the relevant Standard in the on-line catalogue. Alternatively, the printed Catalogue provides information current at 1 January each year, and the monthly maga
6、zine, The Global Standard, has a full listing of revisions and amendments published each month. Australian StandardsTM and other products and services developed by Standards Australia are published and distributed under contract by SAI Global, which operates the Standards Web Shop. We also welcome s
7、uggestions for improvement in our Standards, and especially encourage readers to notify us immediately of any apparent inaccuracies or ambiguities. Contact us via email at mailstandards.org.au, or write to the Chief Executive, Standards Australia, GPO Box 476, Sydney, NSW 2001. This Standard was iss
8、ued in draft form for comment as DR 03434. Accessed by UNIVERSITY OF SOUTH AUSTRALIA on 16 Mar 2009 AS 40872004 Australian Standard Metallic flanges for waterworks purposes Originated as AS 40871993. Previous edition 1996. Third edition 2004. Reissued incorporating Amendment No. 1 (August 2005) COPY
9、RIGHT Standards Australia All rights are reserved. No part of this work may be reproduced or copied in any form or by any means, electronic or mechanical, including photocopying, without the written permission of the publisher. Published by Standards Australia, GPO Box 476, Sydney, NSW 2001, Austral
10、ia ISBN 0 7337 6313 8 Accessed by UNIVERSITY OF SOUTH AUSTRALIA on 16 Mar 2009 AS 40872004 2 PREFACE This Standard was prepared by the Standards Australia Committee WS-022, Valves For Water Supply Purposes, to supersede AS 40871996. This Standard incorporates Amendment No. 1 (August 2005). The chang
11、es required by the Amendment are indicated in the text by a marginal bar and amendment number against the clause, note, table, figure or part thereof affected. The objective of this Standard is to provide manufacturers with requirements for metallic flanges for waterworks purposes and installers of
12、flanged components guidance on the most appropriate jointing requirements to achieve a satisfactory long-term watertight joint. The first flange standard published in Australia was AS B52-1931, which was an endorsement of BS 10, the inch series flange British Standard, Flanges and bolting for pipes
13、valves and fittings. Britain metricated in 1970 and adopted European (ISO) dimensions for flanges whilst Australia chose to continue with the same inch series flange dimensions. AS 2129, Flanges for pipes, valves and fittings, was published in 1978 to supersede AS B52 but incorporated soft metric di
14、mensions. The AS/NZS 4331 series, Metallic flanges, was published in 1995 as an endorsement of ISO hard metric flanges The most common AS 2129 flange tables used for waterworks purposes were Tables D, C, E, F and H with pressure ratings of 700, 1200, 1400, 2100 and 3500 kPa respectively. Table C fla
15、nges were subsequently re-rated to 1400 kPa in AS 21291991 to reflect industry experience. AS 4087 was published in 1993 to provide a dedicated flange Standard for waterworks purposes with a rationalized range of flanges. Table E was eliminated and flanges were designated by Class allowable operatin
16、g pressure (AOP). The table below indicates bolting compatibility between AS 4087 and AS 2129 flanges. Bolting compatibility AS 4087 Flange classification AS 2129 Flange classification PN 14 D, C PN 16 D, C PN 21 F, H PN 35 F, H The principal changes to this Edition are as follows: (a) Replacement o
17、f PN 14 with PN 16 for steel flanges. (b) Amendments to the allowable operating pressures (AOPs) to align with waterworks practices. (c) Deletion of sizes greater than DN 150 for copper alloys. (d) Inclusion of additional sizes for ductile cast iron and steel flanges. (e) Amendments to the specifica
18、tions for jointing materials. For applications outside the limits specified in this Standard the appropriate flange details may be determined from AS 2129, Flanges for pipes, valves and fittings, and AS/NZS 4331, Metallic flanges. Statements expressed in mandatory terms in notes to figures are deeme
19、d to be requirements of this Standard. A1 Accessed by UNIVERSITY OF SOUTH AUSTRALIA on 16 Mar 2009 3 AS 40872004 The terms normative and informative have been used in this Standard to define the application of the appendix to which they apply. A normative appendix is an integral part of a Standard,
20、whereas an informative appendix is only for information and guidance. Accessed by UNIVERSITY OF SOUTH AUSTRALIA on 16 Mar 2009 AS 40872004 4 CONTENTS Page FOREWORD5 SECTION 1 SCOPE AND GENERAL 1.1 SCOPE 6 1.2 REFERENCED DOCUMENTS 6 1.3 APPLICATION.6 1.4 DEFINITIONS 6 1.5 CONFIGURATION.7 1.6 MARKING9
21、 SECTION 2 CLASSIFICATION AND ALLOWABLE PRESSURES 10 SECTION 3 MATERIALS 3.1 FLANGES. 11 3.2 FASTENERS. 11 3.3 FLANGE GASKETS 12 3.4 O-RINGS FOR FLANGES 12 SECTION 4 MANUFACTURING REQUIREMENTS, DIMENSIONS AND TOLERANCES 4.1 DIMENSIONS AND TOLERANCES. 13 4.2 CONTACT SURFACES 14 4.3 SPOT-FACING AND BA
22、CK-FACING OF FLANGES 14 4.4 PREPARATION FOR THE ATTACHMENT OF FLANGES. 15 APPENDICES A LIST OF REFERENCED DOCUMENTS . 16 B DIMENSIONS OF FLANGES 18 C FLANGE JOINTING GUIDLINES. 33 D PURCHASING GUIDELINES 35 Accessed by UNIVERSITY OF SOUTH AUSTRALIA on 16 Mar 2009 5 AS 40872004 FOREWORD Limitations o
23、n the use of flanges specified in this Standard may be imposed by one or more of the following: (f) Material of construction. (g) Pressure class (h) Configuration. (i) DN (nominal size). (j) Whether installed in buried or submerged or above-ground and for the last, the method of support, i.e., beam
24、action. (k) Requirements of any relevant product Standard. Where a pipeline component or appurtenance has an allowable operating pressure (AOP) that is different to an available flange pressure class for the relevant material, the next highest flange pressure class should be specified. For example a
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