1、Fluid power systems O-ringsPart 2: Housing dimensions for general applicationsBS ISO 3601-2:2016Incorporating Corrigendum July 2017BSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06National forewordThis British Standard is the UK implementation of ISO 3601-2:2016. It s
2、upersedes BS ISO 3601-2:2008 which is withdrawn.BS ISO 3601-1:2012 incorporates O-ring sizes corresponding to those previously given in the size tables for general industrial applications. BS ISO 3601-2 gives specifications for the housing sizes for these O-rings.The conversion of a range of O-rings
3、, which were originally designed for fractional inch housings, to metric (mm) housings has proved to be a difficult task.The National Foreword to the 2008 edition highlighted some inconsistencies in the in the standard. In the opinion of the UK Committee these have still not been resolved in this mi
4、nor revision. Potential users are advised to apply this standard with care and, when doing so, consider the following issues identified by the UK Committee. Some of the symbols are defined inconsistently and this could leadto confusion Table 2 for bores and Table 4 for rods give inconvenient housing
5、diameters for bore and rod sizes. Greater use of the stretch criteria(Subclause 6.1.1.1) and diametral interference criteria (Subclause6.1.2.1) could have enabled more convenient metric (mm) dimensions,particularly for static applications. Table 3 for bores and Table 5 forrods do give a limited rang
6、e of housings for whole number bore androd sizes. It is planned to expand the number of whole number sizesgiven in Tables 3 and 5 in a forthcoming major revision of the standard. Neither Subclause 6.1.2 nor the calculation example for rodapplications (Annex B.3) fully reflect the rules used in the c
7、alculationsfor the housing sizes for rods in Table 4. Particular care should betaken when applying Subclause 6.1.2.3.The UK participation in its preparation was entrusted to Technical Committee MCE/11, Fluid seals and their housings.A list of organizations represented on this committee can be obtain
8、ed on request to its secretary.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. The British Standards Institution 2017 Published by BSI Standards Limited 2017ISBN 978 0 580 51090 8ICS 23.100.60; 83.140.50Compl
9、iance with a British Standard cannot confer immunity from legal obligations. This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 July 2016.BRITISH STANDARDBS ISO 3601-2:2016Date Text affected31 July 2017 National foreword text addedBRITISH STA
10、NDARD BS ISO 3601-2:2016Amendments/corrigenda issued since publication ISO 2016Fluid power systems O-rings Part 2: Housing dimensions for general applicationsTransmissions hydrauliques et pneumatiques Joints toriques Partie 2: Dimensions des logements pour applications gnralesINTERNATIONAL STANDARDI
11、SO3601-2Second edition2016-07-15Reference numberISO 3601-2:2016(E) ISO 2016Fluid power systems O-rings Part 2: Housing dimensions for general applicationsTransmissions hydrauliques et pneumatiques Joints toriques Partie 2: Dimensions des logements pour applications gnralesINTERNATIONAL STANDARDISO36
12、01-2Second edition2016-07-15Reference numberISO 3601-2:2016(E)BS ISO 3601-2:2016ISO 3601-2:2016(E)ii ISO 2016 All rights reservedCOPYRIGHT PROTECTED DOCUMENT ISO 2016, Published in SwitzerlandAll rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized o
13、therwise in any form or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below or ISOs member body in the country of the requester.ISO copyright offi
14、ceCh. de Blandonnet 8 CP 401CH-1214 Vernier, Geneva, SwitzerlandTel. +41 22 749 01 11Fax +41 22 749 09 47copyrightiso.orgwww.iso.orgBS ISO 3601-2:2016ISO 3601-2:2016(E)ii ISO 2016 All rights reservedCOPYRIGHT PROTECTED DOCUMENT ISO 2016, Published in SwitzerlandAll rights reserved. Unless otherwise
15、specified, no part of this publication may be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below
16、or ISOs member body in the country of the requester.ISO copyright officeCh. de Blandonnet 8 CP 401CH-1214 Vernier, Geneva, SwitzerlandTel. +41 22 749 01 11Fax +41 22 749 09 47copyrightiso.orgwww.iso.orgISO 3601-2:2016(E)Foreword ivIntroduction v1 Scope .12 Normative references 13 Terms and definitio
17、ns .14 Symbols 15 O-ring housings 36 Requirements .137 Identification statement 14Annex A (informative) Correlation of ISO 3601-1 aerospace O-ring size identification code with EN 3748 O-ring housing codes .48Annex B (informative) Determination of the proper O-ring size for custom housings used for
18、radial and axial applications .49Bibliography .54 ISO 2016 All rights reserved iiiContents PageBS ISO 3601-2:2016ISO 3601-2:2016(E)ForewordISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing Intern
19、ational 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
20、 ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.The procedures used to develop this document and those intended for its further maintenance are described in the ISO/IEC Directives,
21、Part 1. In particular the different approval criteria needed for the different types of ISO documents should be noted. This document was drafted in accordance with the editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).Attention is drawn to the possibility that some of th
22、e 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. Details of any patent rights identified during the development of the document will be in the Introduction and/or on the ISO list of patent declarations r
23、eceived (see www.iso.org/patents).Any trade name used in this document is information given for the convenience of users and does not constitute an endorsement.For an explanation on the meaning of ISO specific terms and expressions related to conformity assessment, as well as information about ISOs
24、adherence to the WTO principles in the Technical Barriers to Trade (TBT) see the following URL: Foreword - Supplementary informationThe committee responsible for this document is ISO/TC 131, Fluid power systems, Subcommittee SC 7, Sealing devices.This second edition cancels and replaces the first ed
25、ition (ISO 3601-2:2008), which has been technically revised.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 ac
26、ceptance criteria Part 4: Anti-extrusion rings (back-up rings) Part 5: Specification of elastomeric materials for industrial applicationsiv ISO 2016 All rights reservedBS ISO 3601-2:2016ISO 3601-2:2016(E)ForewordISO (the International Organization for Standardization) is a worldwide federation of na
27、tional 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. Intern
28、ational 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.The procedures used to develop this document and those inten
29、ded for its further maintenance are described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the different types of ISO documents should be noted. This document was drafted in accordance with the editorial rules of the ISO/IEC Directives, Part 2 (see www.
30、iso.org/directives).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. Details of any patent rights identified during the development of the document wi
31、ll be in the Introduction and/or on the ISO list of patent declarations received (see www.iso.org/patents).Any trade name used in this document is information given for the convenience of users and does not constitute an endorsement.For an explanation on the meaning of ISO specific terms and express
32、ions related to conformity assessment, as well as information about ISOs adherence to the WTO principles in the Technical Barriers to Trade (TBT) see the following URL: Foreword - Supplementary informationThe committee responsible for this document is ISO/TC 131, Fluid power systems, Subcommittee SC
33、 7, Sealing devices.This second edition cancels and replaces the first edition (ISO 3601-2:2008), which has been technically revised.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 cod
34、es Part 2: Housing dimensions for general applications Part 3: Quality acceptance criteria Part 4: Anti-extrusion rings (back-up rings) Part 5: Specification of elastomeric materials for industrial applicationsiv ISO 2016 All rights reserved ISO 3601-2:2016(E)IntroductionIn fluid power systems, powe
35、r is transmitted and controlled through a fluid (liquid or gas) under pressure within an enclosed circuit. To avoid leakage or to seal different chambers of a component from each other, sealing devices are used. O-rings are one type of sealing devices. To seal properly, an O-ring has to be used in a
36、n appropriate housing for the application.Annex A and Annex B of this part of ISO 3601 are for information only. ISO 2016 All rights reserved vBS ISO 3601-2:2016BS ISO 3601-2:2016Fluid power systems O-rings Part 2: Housing dimensions for general applications1 ScopeThis part of ISO 3601 specifies the
37、 housing (gland) dimensions for class A O-rings for general industrial applications conforming to ISO 3601-1, as well as housing dimensions for class B O-rings used on selected metric-dimensioned hardware, e.g. fluid power cylinder bores and piston rods. These O-rings are for use in general hydrauli
38、c and pneumatic applications without and with anti-extrusion rings (back-up rings). The dimensions of the O-rings (d1and d2), size codes (SC) and tolerances conform to ISO 3601-1.Housing dimensions for the O-rings intended for aerospace applications that are specified in ISO 3601-1 are addressed in
39、Annex A.NOTE 1 It is expected that O-ring housing dimensions for special applications be agreed upon between the O-ring manufacturer and the user.NOTE 2 The terms “housing”, “groove” and “gland” are interchangeable, and their usage is a matter of local convenience. In this part of ISO 3601, the term
40、 “housing” is used exclusively.2 Normative referencesThe following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced
41、 document (including any amendments) applies.ISO 3601-1:2012, Fluid power systems O-rings Part 1: Inside diameters, cross-sections, tolerances and designation codesISO 3601-4, Fluid power systems O-rings Part 4: Anti-extrusion rings (back-up rings)ISO 5598, Fluid power systems and components Vocabul
42、aryISO 8015, Geometrical product specifications (GPS) Fundamentals Concepts, principles and rules3 Terms and definitionsFor the purposes of this document, the terms and definitions given in ISO 5598 apply.4 SymbolsFor the purposes of this document, the following symbols are used in this part of ISO
43、3601.Acs1cross-sectional area of the O-ringAcs2cross-sectional area of the O-ring housinga roughness of the side surface of the O-ring housingbxwidth of the O-ring housingb1width of the O-ring housing without an anti-extrusion ring (back-up ring)INTERNATIONAL STANDARD ISO 3601-2:2016(E) ISO 2016 All
44、 rights reserved 1BS ISO 3601-2:2016ISO 3601-2:2016(E)b2width of the O-ring housing with one anti-extrusion ring (back-up ring)b3width of the O-ring housing with two anti-extrusion rings (back-up rings)b4width of the O-ring axial housingC percentage of effective O-ring cross-section compressionc sur
45、face roughness of the O-ring housing based roughness of the mating surface of the O-ringd1O-ring inside diameterd2O-ring cross-section diameterd3housing inside diameter for piston applicationd4bore diameter for piston applicationd5rod diameterd6housing outside diameter for rod applicationd7outside d
46、iameter of housing for axial (face) sealingd8inside diameter of housing for axial (face) sealingd9piston diameterd10bore diameter for rod applicatione surface roughness of lead-in chamferF approximate percentage of housing fillf housing radius (also known as edges of undefined shape)g extrusion gaph
47、 height of seal housingR percentage of O-ring cross-sectional reduction resulting from diametral stretchS percentage of inside diameter stretchSC O-ring size code from ISO 3601-1t total radial housing depthtxapproximate radial housing depthY maximum run-out tolerancez length of lead-in chamfer2 ISO
48、2016 All rights reservedBS ISO 3601-2:2016ISO 3601-2:2016(E)b2width of the O-ring housing with one anti-extrusion ring (back-up ring)b3width of the O-ring housing with two anti-extrusion rings (back-up rings)b4width of the O-ring axial housingC percentage of effective O-ring cross-section compressio
49、nc surface roughness of the O-ring housing based roughness of the mating surface of the O-ringd1O-ring inside diameterd2O-ring cross-section diameterd3housing inside diameter for piston applicationd4bore diameter for piston applicationd5rod diameterd6housing outside diameter for rod applicationd7outside diameter of housing for axial (face) sealingd8inside diameter of housing for axial (face) sealingd9piston diameterd10bore diameter for rod applicatione surface roughness of lead-in chamferF approxi
