BS-ISO-2944-2000.pdf
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1、| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BRITISH STANDARD BS ISO 2944:2000 ICS 23.1
2、00.01 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW Fluid power systems and components Nominal pressures Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 26 06:53:23 GMT+00:00 2006, Uncontrolled Copy, (c) BSI This British Standard, having been prepared under the direction
3、 of the Engineering Sector Committee, was published under the authority of the Standards Committee and comes into effect on 15 May 2000 BSI 05-2000 ISBN 0 580 34773 7 BS ISO 2944:2000 Amendments issued since publication Amd. No.DateComments National foreword This British Standard reproduces verbatim
4、 ISO 2944:2000 and implements it as the UK national standard. The UK participation in its preparation was entrusted by Technical Committee MCE/18, Fluid power systems and components, to Subcommittee MCE/18/-/9, Systems, which has the responsibility to: aid enquirers to understand the text; present t
5、o the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. A list of organizations represented on this subcommittee can be
6、obtained on request to its secretary. Cross-references The British Standards which implement international publications referred to in this document may be found in the BSI Standards Catalogue under the section entitled International Standards Correspondence Index, or by using the Find facility of t
7、he BSI Standards Electronic Catalogue. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Su
8、mmary of pages This document comprises a front cover, an inside front cover, the ISO title page, pages ii to iv, pages 1 to 4, an inside back cover and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued. Licensed Copy: sheffieldun sheffieldu
9、n, na, Sun Nov 26 06:53:23 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Reference number ISO 2944:2000(E) INTERNATIONAL STANDARD ISO 2944 Second edition 2000-03-15 Fluid power systems and components Nominal pressures Transmissions hydrauliques et pneumatiques Pressions nominales Licensed Copy: sheffie
10、ldun sheffieldun, na, Sun Nov 26 06:53:23 GMT+00:00 2006, Uncontrolled Copy, (c) BSI ISO 2944:2000(E) ii? Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 26 06:53:23 GMT+00:00 2006, Uncontrolled Copy, (c) BSI ISO 2944:2000(E) ?iii Foreword ISO (the International Organization for Standardization)
11、 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 repre
12、sented 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
13、 drafted in accordance with the rules given in the ISO/IEC Directives, Part 3. 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
14、vote. Attention is drawn to the possibility that some of the elements of this International Standard may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. International Standard ISO 2944 was prepared by Technical Committee ISO/TC 131,Fl
15、uid power systems, Subcommittee SC 1,Terminology, classification and symbols. This second edition cancels and replaces the first edition (ISO 2944:1974), which has been technically revised. Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 26 06:53:23 GMT+00:00 2006, Uncontrolled Copy, (c) BSI ISO
16、 2944:2000(E) iv? Introduction In fluid power systems, power is transmitted and controlled by a fluid (liquid or gas) under pressure within a circuit. Systems and components are generally designed and marketed for a specific fluid pressure range. Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 2
17、6 06:53:23 GMT+00:00 2006, Uncontrolled Copy, (c) BSI INTERNATIONAL STANDARD?ISO 2944:2000(E) ?1 Fluid power systems and components Nominal pressures 1?Scope This International Standard specifies a series of nominal pressures from which to choose values used in other International Standards related
18、to fluid power. It provides a standardized series from which to choose values applied to individual fluid power systems and/or components. The nominal pressures in this International Standard are for positive gauge pressures used with fluid power systems and/or components. NOTE?See 3.1 and 4.3 for e
19、xplanations of nominal pressure. 2?Normative references The following normative documents contain provisions which, through reference in this text, constitute provisions of this International Standard. For dated references, subsequent amendments to, or revisions of, any of these publications do not
20、apply. However, parties to agreements based on this International Standard are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. For undated references, the latest edition of the normative document referred to applies. Members
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