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ISO 3601-4

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ISO 3601-4
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   Reference number ISO 3601-4:2008(E) ©  ISO 2008   INTERNATIONAL STANDARD   ISO3601-4 First edition2008-06-01 Fluid power systems — O-rings — Part 4: Anti-extrusion rings (back-up rings) Transmissions hydrauliques et pneumatiques — Joints toriques — Partie 4: Bagues anti-extrusion Copyright International Organization for Standardization Provided by IHS under license with ISO Not for Resale No reproduction or networking permitted without license from IHS --`   ,  ,` ` `   ,  ,  ,  ,` ` ` ` -` -`   ,  ,`   ,  ,`   ,`   ,  ,` ---  ISO 3601-4:2008(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobe's licensing policy, this file may be printed or viewed but shall not be edited unless the typefaces which are embedded are licensed to and installed on the computer performing the editing. In downloading this file, parties accept therein the responsibility of not infringing Adobe's licensing policy. The ISO Central Secretariat accepts no liability in this area.  Adobe is a trademark of Adobe Systems Incorporated. Details of the software products used to create this PDF file can be found in the General Info relative to the file; the PDF-creation parameters were optimized for printing. Every care has been taken to ensure that the file is suitable for use by ISO member bodies. In the unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below. COPYRIGHT PROTECTED DOCUMENT   © ISO 2008  All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from either ISO at the address below or ISO's member body in the country of the requester. ISO copyright office Case postale 56 ã  CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail copyright@iso.org Web www.iso.org Published in Switzerland ii © ISO 2008 – All rights reserved     Copyright International Organization for Standardization Provided by IHS under license with ISO Not for Resale No reproduction or networking permitted without license from IHS     -    -        `  ,  ,        `        `        `  ,  ,  ,  ,        `        `        `        `    -        `    -        `  ,  ,        `  ,  ,        `  ,        `  ,  ,        `    -    -    -  ISO 3601-4:2008(E) © ISO 2008 – All rights reserved   iii Contents Page   Foreword............................................................................................................................................................iv   Introduction........................................................................................................................................................v   1   Scope......................................................................................................................................................1   2   Normative references............................................................................................................................1   3   Terms and definitions...........................................................................................................................1   4   Symbols..................................................................................................................................................2   5   General requirements related to O-ring housings.............................................................................2   6   Types of anti-extrusion (back-up) rings..............................................................................................3   6.1   Spiral type, T1........................................................................................................................................3   6.2   Angle cut type, T2..................................................................................................................................5   6.3   Solid type, T3..........................................................................................................................................5   6.4   Angle cut concave type, T4..................................................................................................................6   6.5   Solid concave type, T5..........................................................................................................................7   7   Positioning of anti-extrusion rings in housings.................................................................................8   8   Anti-extrusion ring designation code and materials..........................................................................8   8.1   Designation code...................................................................................................................................8   8.2   Materials.................................................................................................................................................9   9   Dimensions and tolerances..................................................................................................................9   9.1   Axial and radial widths of anti-extrusion rings...................................................................................9   9.2   Outside diameters of anti-extrusion rings for piston sealing applications...................................10   9.3   Inside diameters of anti-extrusion rings for rod sealing applications...........................................11   10   Identification statement (reference to this part of ISO 3601) .............................................................11     Copyright International Organization for Standardization Provided by IHS under license with ISO Not for Resale No reproduction or networking permitted without license from IHS     -    -        `  ,  ,        `        `        `  ,  ,  ,  ,        `        `        `        `    -        `    -        `  ,  ,        `  ,  ,        `  ,        `  ,  ,        `    -    -    -  ISO 3601-4:2008(E) iv © ISO 2008 – All rights reserved   Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2. The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote.  Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. ISO 3601-4 was prepared by Technical Committee ISO/TC 131, Fluid power systems , Subcommittee SC 7, Sealing devices . ISO 3601 consists of the following parts, under the general title Fluid power systems — O-rings :  ⎯    Part 1: Inside diameters, cross-sections, tolerances and designation codes  ⎯    Part 2: Housing dimensions for general applications  ⎯    Part 3: Quality acceptance criteria  ⎯    Part 4: Anti-extrusion rings (back-up rings)  ⎯    Part 5: Suitability of elastomeric materials for industrial applications   Copyright International Organization for Standardization Provided by IHS under license with ISO Not for Resale No reproduction or networking permitted without license from IHS     -    -        `  ,  ,        `        `        `  ,  ,  ,  ,        `        `        `        `    -        `    -        `  ,  ,        `  ,  ,        `  ,        `  ,  ,        `    -    -    -
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