BS EN 837-1-1998 压力计.波登压力计.规格,计量,要求和试验.pdf
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1、| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BRITISH STANDARD BS EN 837-1 : 1998 The Eu
2、ropean Standard EN 837-1 : 1996 has the status of a British Standard ICS 17.100 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW Pressure gauges Part 1. Bourdon tube pressure gauges Dimensions, metrology, requirements and testing This British Standard, having been prepared unde
3、r the direction of the Electrotechnical Sector Board, was published under the authority of the Standards Board and comes into effect on 15 March 1998 BSI 1998 ISBN 0 580 28893 5 BS EN 837-1 : 1998 Amendments issued since publication Amd. No.DateText affected National foreword This British Standard i
4、s the English language version of EN 837-1 : 1996, and it includes the corrections to table A.2 issued on 1997-02-20. It supersedes BS 1780 : 1985 which is withdrawn. The UK participation in its preparation was entrusted by Technical Committee GEL/65, Measurement and control, to Subcommittee GEL/65/
5、2, Elements of systems, which has the responsibility to: aid enquirers to understand the text; present to the responsible European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and p
6、romulgate them in the UK. A list of organizations represented on this subcommittee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Standards Catalogue under
7、 the section entitled International Standards Correspondence Index, or by using the Find facility of the BSI Standards Electronic Catalogue. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside
8、 front cover, the EN title page, pages 2 to 21 and a back cover. CEN European Committee for Standardization Comite Europe en de Normalisation Europa isches Komitee fu r Normung Central Secretariat: rue de Stassart 36, B-1050 Brussels 1996 Copyright reserved to CEN members. Ref. No. EN 837-1 : 1996 E
9、 EUROPEAN STANDARDEN 837-1 NORME EUROPE ENNE EUROPA ISCHE NORM December 1996 ICS 17.100 Descriptors: Metrology, measuring instruments, manometers, vacuum gauges, indicating instruments, designation, specifications, dimensions, fidelity, safety, metrology inspection, marking English version Pressure
10、gauges Part1: Bourdon tube pressure gauges Dimensions, metrology, requirements and testing Manome tres Partie 1: Manome tres a tubes de Bourdon Dimensions, me trologie, prescriptions et essais Druckmegera te Teil 1: Druckmegera te mit Rohrfedern Mae, Metechnik, Anforderungen und Pru fung This Europe
11、an Standard was approved by CEN on 1996-10-30. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerni
12、ng such national standards may be obtained on application to the Central Secretariat or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own lan
13、guage and notified to the Central Secretariat has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and
14、 United Kingdom. Page 2 EN 837-1 : 1996 BSI 1998 Foreword This European Standard has been prepared by Technical Committee CEN/TC 141, Pressure gauges Thermometers Means of measuring and/or recording temperature during the distribution of refrigerated frozen and quick-frozen products, the secretariat
15、 of which is held by AFNOR. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by June 1997, and conflicting national standards shall be withdrawn at the latest by June 1997. This European Standard is a
16、 part of the series of the following standards: EN 837-1: Pressure gauges Part 1: Bourdon tube pressure gauges Dimensions, metrology, requirements and testing; EN 837-2: Pressure gauges Part 2: Selection and installation recommendations for pressure gauges; EN 837-3: Pressure gauges Part 3: Diaphrag
17、m and capsule pressure gauges Dimensions, metrology, requirements and testing. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Denmark, Finland, France, Germany, Greece
18、, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. Contents Page Foreword2 1Scope3 2Normative references3 3Definitions3 4Nominal sizes3 5Pressure ranges3 6Accuracy classes4 7Dimensions4 8Pressure element assembly8 9Requirements8 1
19、0Testing13 11Packaging for transportation16 12Designation17 Annex A(informative) Examples of scale numbering for accuracy classes from 0,6 to 418 w w w . b z f x w . c o m Page 3 EN 837-1 : 1996 BSI 1998 1 Scope This European Standard specifies requirements for Bourdon tube (designated by B, see cla
20、use 12) indicating pressure gauges, vacuum gauges and combined vacuum and pressure gauges (compound gauges), with circular, spiral or coiled forms, from 40 to 250 nominal size, and with ranges up to 1600 bar, for the measurement of gauge pressure. A reading of zero bar is atmospheric pressure. 1 bar
21、 = 105Pa. Gauges specified have circular dials with concentric scales for industrial and test use. The standard includes methods of test for performance to be applied at type approval and production piece tests. The standard applies to gauges suitable for industrial use with common industrial fluids
22、. It applies also to liquid-filled gauges, gauges for high pressure gases and gauges for use with oxygen or acetylene. It does not apply to pressure gauges with electrical contacts. Pressure gauges for welding, cutting and associated processes are not included in this standard, but are specified in
23、EN 562. 2 Normative references This European Standard incorporates by dated or undated reference, provisions from other publications. These normative references are cited at the appropriate places in the text and the publications are listed hereafter. For dated references, subsequent amendments to o
24、r revisions of any of these publications apply to this European Standard only when incorporated in it by amendment or revision. For undated references the latest edition of the publication referred to applies. ANSI/ASME B1.20.1 Pipe threads, general purpose (inch) EN 472 : 1994Pressure gauges Vocabu
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