BS-ISO-21358-2007.pdf
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1、BRITISH STANDARD BS ISO 21358:2007 Vacuum technology Right-angle valve Dimensions and interfaces for pneumatic actuator ICS 23.160 ? Licensed Copy: London South Bank University, London South Bank University, Wed May 16 03:50:49 GMT+00:00 2007, Uncontrolled Copy, (c) BSI BS ISO 21358:2007 This Britis
2、h Standard was published under the authority of the Standards Policy and Strategy Committee on 31 May 2007 BSI 2007 ISBN 978 0 580 50749 6 National foreword This British Standard was published by BSI. It is the UK implementation of ISO 21358:2007. The UK participation in its preparation was entruste
3、d to Technical Committee MCE/8, Compressors, pneumatic tools, pneumatic machines and 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 ar
4、e responsible for its correct application. Compliance with a British Standard cannot confer immunity from legal obligations. Amendments issued since publication Amd. No. DateComments Licensed Copy: London South Bank University, London South Bank University, Wed May 16 03:50:49 GMT+00:00 2007, Uncont
5、rolled Copy, (c) BSI Reference number ISO 21358:2007(E) INTERNATIONAL STANDARD ISO 21358 First edition 2007-04-15 Vacuum technology Right-angle valve Dimensions and interfaces for pneumatic actuator Technique du vide Vanne dquerre Dimensions et interfaces pour actionneur pneumatique BS ISO 21358:200
6、7 Licensed Copy: London South Bank University, London South Bank University, Wed May 16 03:50:49 GMT+00:00 2007, Uncontrolled Copy, (c) BSI ii Licensed Copy: London South Bank University, London South Bank University, Wed May 16 03:50:49 GMT+00:00 2007, Uncontrolled Copy, (c) BSI iii Foreword ISO (t
7、he 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 commit
8、tee 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 electrotech
9、nical 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
10、 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
11、 any or all such patent rights. ISO 21358 was prepared by Technical Committee ISO/TC 112, Vacuum technology. BS ISO 21358:2007 Licensed Copy: London South Bank University, London South Bank University, Wed May 16 03:50:49 GMT+00:00 2007, Uncontrolled Copy, (c) BSI iv Introduction There has previousl
12、y been no International Standard for the mounting dimensions of right-angle valves, in spite of the fact that right-angle valves are frequently incorporated in vacuum systems as part of pipeline fittings in practical situations of use. This International Standard was prepared in accordance with the
13、revision of ISO 9803 in which the mounting dimensions of pipeline fittings have been standardized. Interfaces for pneumatic actuators have also been standardized. BS ISO 21358:2007 Licensed Copy: London South Bank University, London South Bank University, Wed May 16 03:50:49 GMT+00:00 2007, Uncontro
14、lled Copy, (c) BSI 1 Vacuum technology Right-angle valve Dimensions and interfaces for pneumatic actuator 1 Scope This International Standard defines dimensions of right-angle valves that are compatible with the mounting dimensions of elbows defined in ISO 9803-1 and ISO 9803-2. This International S
15、tandard covers right-angle valves with flanges defined in ISO 2861-1, ISO 1609 and ISO 3669. ISO 3669 lists two flange series: preferred series, and secondary series. This International Standard covers only the valves with flanges of the secondary series. 2 Normative references The following referen
16、ced documents are indispensable for the application 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. ISO 1609, Vacuum technology Flange dimensions ISO 2861-1, Vacuum techn
17、ology Quick-release couplings Dimensions Part 1: Clamped type ISO 3669, Vacuum technology Bakable flanges Dimensions 3 Terms and definitions For the purposes of this document, the terms and definitions given in ISO 1609 and ISO 2861-1 apply. 4 Requirements 4.1 Mounting dimensions of the vacuum pipel
18、ine fittings shall be as specified in Table 1. See Figure 1. 4.2 Flange dimensions shall be as specified in ISO 1609 and ISO 2861-1 and ISO 3669. One or more flanges should be rotatable. BS ISO 21358:2007 Licensed Copy: London South Bank University, London South Bank University, Wed May 16 03:50:49
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