1、BS ISO 23748:2016Aerospace series O-ringgrooves DimensionsBSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06BS ISO 23748:2016 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of ISO 23748:2016.The UK participation in its preparation was e
2、ntrusted to TechnicalCommittee ACE/69, Aerospace hydraulic systems, fluids andcomponents.A list of organizations represented on this committee can beobtained on request to its secretary.This publication does not purport to include all the necessaryprovisions of a contract. Users are responsible for
3、its correctapplication. The British Standards Institution 2016. Published by BSI Standards Limited 2016ISBN 978 0 580 85852 9ICS 49.080; 49.100Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of theStandards Polic
4、y and Strategy Committee on 31 October 2016.Amendments/corrigenda issued since publicationDate Text affectedBS ISO 23748:2016 ISO 2016Aerospace series O-ring grooves DimensionsSrie arospatiale Gorges pour joints toriques DimensionsINTERNATIONAL STANDARDISO23748First edition2016-10-01Reference number
5、ISO 23748:2016(E)BS ISO 23748:2016ISO 23748:2016(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 otherwise in any form or by any means, electroni
6、c 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 officeCh. de Blandonnet 8 CP 401CH-1214 Vernier, Ge
7、neva, SwitzerlandTel. +41 22 749 01 11Fax +41 22 749 09 47copyrightiso.orgwww.iso.orgBS ISO 23748:2016ISO 23748:2016(E)Foreword iv1 Scope . 12 Normative references 13 Symbols 14 Required characteristics 24.1 Configuration Dimensions Tolerances . 24.1.1 General 24.1.2 Radial sealing Rod housing: Conf
8、iguration code A 24.1.3 Radial sealing Bore housing: Configuration code B 94.1.4 Axial sealing for internal pressure: Configuration code C .164.1.5 Axial sealing for external pressure: Configuration code D .225 Designation .286 Drawing presentation 286.1 General 286.2 Configuration code A 286.3 Conf
9、iguration code B 296.4 Configuration code C . 296.5 Configuration code D 29Bibliography .30 ISO 2016 All rights reserved iiiContents PageBS ISO 23748:2016ISO 23748:2016(E)ForewordISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO memb
10、er 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, government
11、al 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 intended for its further maintenance a
12、re 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.iso.org/directives).Attention is
13、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 will be in the Introduction and/or
14、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 expressions related to conformity assess
15、ment, as well as information about ISOs adherence to the World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see the following URL: www.iso.org/iso/foreword.html.ISO 23748 was prepared by ACE/12/1 as EN 3748:2001 and was adopted (without modification other than those s
16、tipulated below) by Technical Committee ISO/TC 20, Aircraft and space vehicles, Subcommittee SC 10, Aerospace fluid systems and components.The following are the modifications made in this International Standard: reference to ISO 3601-1 size codes in tables; correction in Table 13 of value 90,27 to 9
17、1,27; addition of “static applications” in the title and scope; “according to European Standards” was removed in the scope; any reference to European Standards were removed.iv ISO 2016 All rights reservedBS ISO 23748:2016Aerospace series O-ring grooves Dimensions1 ScopeThis International Standard sp
18、ecifies the dimensions of grooves for use with O-rings for aerospace in static sealing applications: radial sealing: rod or bore mounted O-rings; axial sealing: internal or external pressure source.2 Normative referencesThe following documents are referred to in the text in such a way that some or a
19、ll of their content constitutes requirements 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.There are no normative references in this document.3 Symbolsb O-ring groove wi
20、dthd1O-ring inside diameterd2O-ring section diameterd3O-ring groove diameter, rod mountedd4bore diameter, rod mountedd5rod outside diameter bore mountedd6O-ring groove diameter bore mountedd7O-ring groove outside diameter, internal pressured8O-ring groove inside diameter, external pressured9rod outs
21、ide diameter, rod mountedd10bore diameter, bore mountedh groove heightR edge radius on groover1corner radius on groovet housing depthZ lead-in chamfer lengthINTERNATIONAL STANDARD ISO 23748:2016(E) ISO 2016 All rights reserved 1BS ISO 23748:2016ISO 23748:2016(E)4 Required characteristics4.1 Configur
22、ation Dimensions Tolerances4.1.1 GeneralOnly recommended sizes are given in the tables.Dimensions and tolerances are in millimetres. Surface roughness values are in micrometres.4.1.2 Radial sealing Rod housing: Configuration code A4.1.2.1 GeneralThis configuration corresponds to radial grooves in st
23、atic applications, rod mounted. See Figure 1 and Tables 1 to 7.Key1 bore2 rodaSee Table 1.bGroove diameter d3 50: maximum run-out tolerance Y = 0,025.Groove diameter d3 50: maximum run-out tolerance Y = 0,05.cNo burrs permitted in this area.Figure 12 ISO 2016 All rights reservedBS ISO 23748:2016ISO
24、23748:2016(E)Table 1SurfaceRoughnessRaRmax.continuous pressurewith pressure variationcontinuous pressurewith pressure variation5 MPa 5 MPa 5MPa 5 MPa 5 MPa 5 MPa 5 MPa 5 MPaGrooveSide surfaces3,21,6 1,6 1,612,56,3 6,3 6,3Inside diameter1,6 6,3Homologous surface 0,8 3,2Table 2d2b Z r1Rnom. max. min.
25、min. max. min. max. min.1,80 2,65 2,40 1,10,4 0,20,3 0,12,65 3,85 3,60 1,53,55 5,05 4,80 1,80,8 0,45,30 7, 35 7,10 2,77,00 9,45 9,20 3,6 1,2 0,8 ISO 2016 All rights reserved 3BS ISO 23748:2016ISO 23748:2016(E)4.1.2.2 Section diameter d2= 1,80Table 3d1d3d4d9Codeanom.00,04+0,060f7bA0040 4,00 4,24 7,00
26、 7,00A0050 5,00 5,27 8,03 8,03A0060 6,00 6,30 9,06 9,06A0069 6,90 7, 24 10,00 10,00A0087 8,75 9,12 11,88 11,88A0106 10,60 11,02 13,78 13,78A0125 12,50 12,97 15,73 15,73A0140 14,00 14,54 17, 30 17, 30A0160 16,00 16,64 19,40 19,40A0180 18,00 18,64 21,40 21,40A0212 21,20 21,94 24,70 24,70A0236 23,60 24
27、,44 27, 20 27, 20A0280 28,00 28,94 31,70 31,70A0315 31,50 32,54 35,30 35,30A0355 35,50 36,64 39,40 39,40A0365 36,50 37,6 4 40,40 40,40A0375 37, 50 38,64 41,40 41,40A0387 38,70 39,84 42,60 42,60A0400 40,00 41,24 44,00 44,00aSize code corresponding to the codification of O-rings according to ISO 3601-
28、1.bSee ISO 286-2.4 ISO 2016 All rights reservedBS ISO 23748:2016ISO 23748:2016(E)4.1.2.3 Section diameter d2= 2,65Table 4d1d3d4d9Codeanom.00,05+0,070f7bB0053 5,30 5,58 9,72 9,72B0069 6,90 7, 25 11,39 11,39B0095 9,50 9,90 14,04 14,04B0112 11,20 11,66 15,80 15,80B0132 13,20 13,76 17,90 17,90B0150 15,0
29、0 15,56 19,70 19,70B0170 17,00 17,66 21,80 21,80B0200 20,00 20,66 24,80 24,80B0224 22,40 23,16 27, 30 27, 30B0265 26,50 27, 36 31,50 31,50B0300 30,00 30,96 35,10 35,10B0345 34,50 35,56 39,70 39,70B0387 38,70 39,86 44,00 44,00B0437 43,70 45,06 49,20 49,20B0500 50,00 51,46 55,60 55,60B0560 56,00 57,66
30、 61,80 61,80B0600 60,00 61,76 65,90 65,90B0650 65,00 66,86 71,00 71,00B0710 71,00 73,06 77, 20 77, 20B0750 75,00 77,16 81,30 81,30B0800 80,00 82,26 86,40 86,40aSize code corresponding to the codification of O-rings according to ISO 3601-1.bSee ISO 286-2. ISO 2016 All rights reserved 5BS ISO 23748:20
31、16ISO 23748:2016(E)4.1.2.4 Section diameter d2= 3,55Table 5d1d3d4d9Codeanom.00,06+0,080f7bC0250 25,00 25,82 31,30 31,30C0300 30,00 31,02 36,50 36,50C0355 35,50 36,62 42,10 42,10C0425 42,50 43,82 49,30 49,30C0487 48,70 50,12 55,60 55,60C0545 54,50 56,12 61,60 61,60C0615 61,50 63,32 68,80 68,80C0710 7
32、1,00 73,02 78,50 78,50C0800 80,00 82,32 87, 80 87, 80C0900 90,00 92,52 98,00 98,00C1000 100,00 102,82 108,30 108,30C1120 112,00 115,12 120,60 120,60C1150 115,00 118,22 123,70 123,70C1220 122,00 125,32 130,80 130,80C1320 132,00 135,62 141,10 141,10C1400 140,00 143,82 149,30 149,30C1500 150,00 154,12
33、159,60 159,60C1600 160,00 164,32 169,80 169,80C1700 170,00 174,62 180,10 180,10C1800 180,00 189,92 195,40 195,40C1900 190,00 195,12 200,60 200,60C2000 200,00 205,32 210,80 210,80C2120 212,00 217,62 223,10 223,10C2240 224,00 229,92 235,40 235,40C2360 236,00 242,32 247, 80 247, 80C2500 250,00 256,62 2
34、62,10 262,10aSize code corresponding to the codification of O-rings according to ISO 3601-1.bSee ISO 286-2.6 ISO 2016 All rights reservedBS ISO 23748:2016ISO 23748:2016(E)4.1.2.5 Section diameter d2= 5,30Table 6d1d3d4d9Codeanom.00,07+0,090f7bD0600 60,00 61,82 70,20 70,20D0710 71,00 73,02 81,40 81,40
35、D0800 80,00 82,32 90,70 90,70D0900 90,00 92,52 100,90 100,90D1090 109,00 112,02 120,40 120,40D1120 112,00 115,12 123,50 123,50D1180 118,00 121,22 129,60 129,60D1280 128,00 131,52 139,90 139,90D1360 136,00 139,72 148,10 148,10D1450 145,00 148,92 157, 30 157, 30D1550 155,00 159,22 167,60 167,60D1650 1
36、65,00 169,42 177, 80 177, 80D1750 175,00 179,72 188,10 188,10D1850 185,00 190,02 198,40 198,40D1950 195,00 200,22 208,60 208,60D2000 200,00 205,32 213,70 213,70aSize code corresponding to the codification of O-rings according to ISO 3601-1.bSee ISO 286-2. ISO 2016 All rights reserved 7BS ISO 23748:2
37、016ISO 23748:2016(E)4.1.2.6 Section diameter d2= 7,00Table 7d1d3d4d9Codeanom.00,09+0,110f7bE1090 109,00 112,06 123,40 123,40E1150 115,00 118,26 129,60 129,60E1250 125,00 128,46 139,80 139,80E1360 136,00 139,76 151,10 151,10E1450 145,00 148,96 160,30 160,30E1550 155,00 159,26 170,60 170,60E1650 165,0
38、0 169,46 180,80 180,80E1750 175,00 179,76 191,10 191,10E1850 185,00 189,96 201,30 201,30E1900 190,00 195,16 206,50 206,50E2000 200,00 205,36 216,70 216,70E2120 212,00 217,66 229,00 229,00E2240 224,00 229,86 241,20 241,20E2300 230,00 236,16 247, 50 247, 50E2430 243,00 249,46 260,80 260,80E2500 250,00
39、 256,66 268,00 268,00E2580 258,00 264,86 276,20 276,20E2720 272,00 279,26 290,60 290,60E2800 280,00 287,46 298,80 298,80E2900 290,00 297,66 309,00 309,00E3000 300,00 307,96 319,30 319,30E3150 315,00 323,36 334,70 334,70E3250 325,00 333,56 344,90 344,90E3350 335,00 343,86 355,20 355,20E3450 345,00 35
40、4,06 365,40 365,40E3550 355,00 364,36 375,70 375,70E3650 365,00 374,56 385,90 385,90E3750 375,00 384,86 396,20 396,20E3870 387,00 397,16 408,50 408,50E4000 400,00 410,46 421,80 421,80aSize code corresponding to the codification of O-rings according to ISO 3601-1.bSee ISO 286-2.8 ISO 2016 All rights
41、reservedBS ISO 23748:2016ISO 23748:2016(E)4.1.3 Radial sealing Bore housing: Configuration code B4.1.3.1 GeneralThis configuration (not recommended) corresponds to radial grooves in static applications, bore mounted. See Figure 2 and Tables 8 to 14.Key1 rod2 boreaSee Table 8.bGroove diameter d6 50:
42、maximum run-out tolerance Y = 0,025.Groove diameter d6 50: maximum run-out tolerance Y = 0,05.cNo burrs permitted in this area.Figure 2 ISO 2016 All rights reserved 9BS ISO 23748:2016ISO 23748:2016(E)Table 8SurfaceRoughnessRaRmax.continuous pressurewith pressure variationcontinuous pressurewith pres
43、sure variation5 MPa 5 MPa 5 MPa 5 MPa 5 MPa 5 MPa 5 MPa 5 MPaGrooveSide surfaces3,21,6 1,6 1,612,56,3 6,3 6,3Inside diameter1,6 6,3Homologous surface 0,8 3,2Table 9d2b Z r1Rnom. max. min. min. max. min. max. min.1,80 2,65 2,40 1,10,4 0,20,3 0,12,65 3,85 3,60 1,53,55 5,05 4,80 1,80,8 0,45,30 7, 35 7,
44、10 2,77,00 9,45 9,20 3,6 1,2 0,810 ISO 2016 All rights reservedBS ISO 23748:2016ISO 23748:2016(E)4.1.3.2 Section diameter d2= 1,80Table 10d1d5d6d10Codeanom.00,04+0,060H8bA0040 4,00 4,29 7,13 4,37A0048 4,87 5,15 7,99 5,23A0056 5,60 5,84 8,68 5,92A0067 6,70 6,86 9,70 6,94A0080 8,00 8,16 11,00 8,24A008
45、7 8,75 8,86 11,70 8,94A0100 10,00 10,06 12,90 10,14A0118 11,80 11,86 14,70 11,94A0140 14,00 13,96 16,80 14,04A0160 16,00 15,96 18,80 16,04A0180 18,00 17, 86 20,70 17,94A0200 20,00 19,86 22,70 19,94A0224 22,40 22,16 25,00 22,24A0250 25,00 24,66 27, 50 24,74A0280 28,00 27,66 30,50 27,74A0325 32,50 32,
46、06 34,90 32,14A0365 36,50 36,06 38,90 36,14A0400 40,00 39,36 42,20 39,44aSize code corresponding to the codification of O-rings according to ISO 3601-1.bSee ISO 286-2. ISO 2016 All rights reserved 11BS ISO 23748:2016ISO 23748:2016(E)4.1.3.3 Section diameter d2= 2,65Table 11d1d5d6d10Codeanom.00,05+0,
47、070H8bB0045 4,50 5,07 9,37 5,23B0060 6,00 6,48 10,78 6,64B0069 6,90 7, 33 11,63 7,49B0080 8,00 8,42 12,72 8,58B0090 9,00 9,42 13,72 9,58B0100 10,00 10,32 14,62 10,48B0118 11,80 12,12 16,42 12,28B0140 14,00 14,22 18,52 14,38B0150 15,00 15,22 19,52 15,38B0180 18,00 18,12 22,42 18,28B0200 20,00 20,12 2
48、4,42 20,28B0224 22,40 22,42 26,72 22,58B0250 25,00 24,92 29,22 25,08B0280 28,00 27,92 32,22 28,08B0325 32,50 32,12 36,42 32,28B0365 36,50 36,12 40,42 36,28B0400 40,00 39,52 43,82 39,68B0450 45,00 44,42 48,72 44,58B0500 50,00 49,32 53,62 49,48B0560 56,00 55,12 59,42 55,28aSize code corresponding to t
49、he codification of O-rings according to ISO 3601-1.bSee ISO 286-2.12 ISO 2016 All rights reservedBS ISO 23748:2016ISO 23748:2016(E)4.1.3.4 Section diameter d2= 3,55Table 12d1d5d6d10Codeanom.00,06+0,080H8bC0250 25,00 25,29 30,99 25,51C0300 30,00 30,19 35,89 30,41C0355 35,50 35,49 41,19 35,71C0400 40,00 39,89 45,59 40,11C0450 45,00 44,79 50,49 45,01C0500 50,00 49,69 55,39 49,91C0560 56,00 55,49 61,19 55,71C0630 63,00 62,29 67,99 62,51C0710 71,00 70,19 75,89 70,41C0800 80,00
