1、Vacuum technology Bakeable flanges Dimensions of knife-edge flangesBS ISO 3669:2017BSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06 ISO 2017Vacuum technology Bakeable flanges Dimensions of knife-edge flangesTechnique du vide Brides tuvables Dimensions des brides guil
2、lotineINTERNATIONAL STANDARDISO3669Second edition2017-08Reference numberISO 3669:2017(E)National forewordThis British Standard is the UK implementation of ISO 3669:2017. It supersedes DD ISO/TS 36692:2007, which is withdrawn.The UK participation in its preparation was entrusted to Technical Committe
3、e MCE/8/4, Vacuum technology.A list of organizations represented on this committee can be obtained 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
4、 2017 Published by BSI Standards Limited 2017ISBN 978 0 580 86831 3ICS 23.160Compliance 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 30 September 2017.Amendments/corrige
5、nda issued since publicationDate Text affectedBRITISH STANDARDBS ISO 3669:2017 ISO 2017Vacuum technology Bakeable flanges Dimensions of knife-edge flangesTechnique du vide Brides tuvables Dimensions des brides guillotineINTERNATIONAL STANDARDISO3669Second edition2017-08Reference numberISO 3669:2017(
6、E)BS ISO 3669:2017ISO 3669:2017(E)ii ISO 2017 All rights reservedCOPYRIGHT PROTECTED DOCUMENT ISO 2017, 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, electronic or mechanical,
7、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, Geneva, Switzerland
8、Tel. +41 22 749 01 11Fax +41 22 749 09 47copyrightiso.orgwww.iso.orgBS ISO 3669:2017ISO 3669:2017(E)ii ISO 2017 All rights reservedCOPYRIGHT PROTECTED DOCUMENT ISO 2017, Published in SwitzerlandAll rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized
9、 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 or ISOs member body in the country of the requester.ISO copyright of
10、ficeCh. de Blandonnet 8 CP 401CH-1214 Vernier, Geneva, SwitzerlandTel. +41 22 749 01 11Fax +41 22 749 09 47copyrightiso.orgwww.iso.orgISO 3669:2017(E)Foreword ivIntroduction v1 Scope . 12 Normative references 13 Terms and definitions . 14 Symbols and abbreviated terms . 25 Requirements 25.1 Material
11、s . 25.1.1 Flange 25.1.2 Bolt holes 25.1.3 Grooves . 25.1.4 Gasket 25.2 Dimensions . 2Bibliography 7 ISO 2017 All rights reserved iiiContents PageBS ISO 3669:2017ISO 3669:2017(E)ForewordISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (I
12、SO 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, gov
13、ernmental 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 mainte
14、nance 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 .iso .org/ directives).Att
15、ention 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 will be in the Introducti
16、on 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 voluntary nature of standards, the meaning of ISO specific te
17、rms and expressions related to conformity assessment, 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 .htmlThis document was prepared by Technical Committee ISO/T
18、C 112, Vacuum technology.This second edition cancels and replaces ISO/TS 3669-2:2007, which has been technically revised with the following changes: As a result of its relation to ISO 2861, ISO 9803-1, ISO 9803-2 and ISO 21358, the title has changed to Vacuum technology Bakeable flanges Dimensions o
19、f knife-edge flanges . Clause 1: pressure range in scope “from atmospheric to as low as 10-13Pa” has changed to practical range “from atmospheric to as low as 10-11Pa”, since this document deals with industrial standards. Clause 3: “knife-edge style flange” has changed to “knife-edge flange”. Clause
20、 4: “l8 depth of pipe connection” has changed to “l8 setback for inner rotatable ring”. Clause 4: “l11 outside diameter of metal gasket” has changed to “l10 outside diameter of metal gasket”. Clause 4: units of l2, l3, l4, l5, l6, l7, l8, l9and l10are now in mm, rather than mm (in), since inch value
21、s are not given in Table 1. Table 1: effectual values of l4, l5, l6, l7and l8have changed from XX.X0 to XX.X, after considering their tolerance, 0.1. Table 1: footnote added for the most commonly used flanges (16, 40, 63, 100, 160, 200 and 250CF). Table 1: l1, Nominal outside diameter of 400CF has c
22、hanged from 16,5 to 18,5.iv ISO 2017 All rights reservedBS ISO 3669:2017ISO 3669:2017(E)ForewordISO (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 t
23、hrough 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 colla
24、borates 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, Part 1. In particular the different approva
25、l 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 the elements of this document may be the s
26、ubject 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 received (see www .iso .org/ patents).Any
27、 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 voluntary nature of standards, the meaning of ISO specific terms and expressions related to conformity assessment, as well as information about ISOs ad
28、herence to the World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see the following URL: www .iso .org/ iso/ foreword .htmlThis document was prepared by Technical Committee ISO/TC 112, Vacuum technology.This second edition cancels and replaces ISO/TS 3669-2:2007, whic
29、h has been technically revised with the following changes: As a result of its relation to ISO 2861, ISO 9803-1, ISO 9803-2 and ISO 21358, the title has changed to Vacuum technology Bakeable flanges Dimensions of knife-edge flanges . Clause 1: pressure range in scope “from atmospheric to as low as 10
30、-13Pa” has changed to practical range “from atmospheric to as low as 10-11Pa”, since this document deals with industrial standards. Clause 3: “knife-edge style flange” has changed to “knife-edge flange”. Clause 4: “l8 depth of pipe connection” has changed to “l8 setback for inner rotatable ring”. Cl
31、ause 4: “l11 outside diameter of metal gasket” has changed to “l10 outside diameter of metal gasket”. Clause 4: units of l2, l3, l4, l5, l6, l7, l8, l9and l10are now in mm, rather than mm (in), since inch values are not given in Table 1. Table 1: effectual values of l4, l5, l6, l7and l8have changed
32、from XX.X0 to XX.X, after considering their tolerance, 0.1. Table 1: footnote added for the most commonly used flanges (16, 40, 63, 100, 160, 200 and 250CF). Table 1: l1, Nominal outside diameter of 400CF has changed from 16,5 to 18,5.iv ISO 2017 All rights reserved ISO 3669:2017(E)IntroductionThis
33、document is the conversion of ISO/TS 3669-2:2007 and contains significant technical changes from the first edition (ISO 3669:1986), which defined two series of “bakeable” flanges: as a preferred series, the main dimensions of which ensure compatibility with already standardized non-bakeable flanges
34、(see ISO 1609); a secondary series corresponding to flanges in common use.This document specifies only one series and is no longer dependent on the preferred number. Effectively, the preferred series has been made obsolete, thereby promoting the secondary series to be the one and only set of specifi
35、ed dimensions. Furthermore, several dimensions in what was formerly the secondary series have been modified to correspond to flanges in common use. Finally, detailed dimensions for the knife-edge sealing profile have been incorporated.It is noted, however, that the original ConFlat flange dimensions
36、 and tolerances, as developed by Varian, were not available during the development stage of this specification. The intent of this document is to ensure interchangeability of flanges. It is reasonable to accept that flanges manufactured to the original Varian specifications are compatible with flang
37、es manufactured according to this ISO standard, even though they might not fall within all tolerances. ISO 2017 All rights reserved vBS ISO 3669:2017Vacuum technology Bakeable flanges Dimensions of knife-edge flanges1 ScopeThis document specifies the dimensions of fixed or rotatable bolted knife-edg
38、e flanges used in vacuum systems for pressures ranging from atmospheric to as low as 1011Pa.2 Normative referencesThere are no normative references in this document.3 Terms and definitionsFor the purposes of this document, the following terms and definitions apply.ISO and IEC maintain terminological
39、 databases for use in standardization at the following addresses: ISO Online browsing platform: available at h t t p :/ www .iso .org/ obp IEC Electropedia: available at h t t p :/ www .electropedia .org/ 3.1knife-edge flangemetal sealed flange used for high and ultra-high vacuum serviceNote 1 to en
40、try: Sandwiching one metal gasket between two knife-edge flanges and securely bolting these together makes a vacuum tight joint. The seal is made when the identical circular (triangular profile) knife-edges are bolted together. A deformable metal gasket captured between the knife-edge flanges establ
41、ishes the sealing surface.Note 2 to entry: Originally developed as ConFlat1)flanges. The widespread and continued use of knife-edge flanges has made these a de facto international standard, codified by this document.3.2nominal borevalue intended to both identify the flange and specify the largest pr
42、actical size of tubing that can be accommodated by the flangeNote 1 to entry: See Table 1, in which the convention of identifying original flanges by the outside diameter of the flange (historically in inches) has been maintained.3.3leak check groovegroove machined into the seal side of the flange t
43、o facilitate the free passage of trace gas from the outer perimeter of the flange to the seal zone near the metal gasket1) Conflat is the trade name of a product supplied by the Varian corporation. This information is given for the convenience of users of this document and does not constitute an end
44、orsement by ISO of the product named. Equivalent products may be used if they can be shown to lead to the same results.INTERNATIONAL STANDARD ISO 3669:2017(E) ISO 2017 All rights reserved 1BS ISO 3669:2017Vacuum technology Bakeable flanges Dimensions of knife-edge flanges1 ScopeThis document specifi
45、es the dimensions of fixed or rotatable bolted knife-edge flanges used in vacuum systems for pressures ranging from atmospheric to as low as 1011Pa.2 Normative referencesThere are no normative references in this document.3 Terms and definitionsFor the purposes of this document, the following terms a
46、nd definitions apply.ISO and IEC maintain terminological databases for use in standardization at the following addresses: ISO Online browsing platform: available at h t t p :/ www .iso .org/ obp IEC Electropedia: available at h t t p :/ www .electropedia .org/ 3.1knife-edge flangemetal sealed flange
47、 used for high and ultra-high vacuum serviceNote 1 to entry: Sandwiching one metal gasket between two knife-edge flanges and securely bolting these together makes a vacuum tight joint. The seal is made when the identical circular (triangular profile) knife-edges are bolted together. A deformable met
48、al gasket captured between the knife-edge flanges establishes the sealing surface.Note 2 to entry: Originally developed as ConFlat1)flanges. The widespread and continued use of knife-edge flanges has made these a de facto international standard, codified by this document.3.2nominal borevalue intende
49、d to both identify the flange and specify the largest practical size of tubing that can be accommodated by the flangeNote 1 to entry: See Table 1, in which the convention of identifying original flanges by the outside diameter of the flange (historically in inches) has been maintained.3.3leak check groovegroove machined into the seal side of the flange to facilitate the free passage of trace gas from the outer perimeter of the flange to the seal zone near the metal gas
