BS-EN-629-2-1996.pdf
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1、| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BRITISH STANDARD BS EN 629-2 : 1996 The Eu
2、ropean Standard EN 629-2 : 1996 has the status of a British Standard ICS 23.020.30 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW Transportable gas cylinders 25E taper thread for connection of valves to gas cylinders Part 2. Gauge inspection This British Standard, having been
3、 prepared under the direction of the Engineering Sector Board, was published under the authority of the Standards Board and comes into effect on 15 December 1996 BSI 1996 The following BSI references relate to the work on this standard: Committee reference PVE/3/1 Draft for comment 92/72647 DC ISBN
4、0 580 26452 1 BS EN 629-2 : 1996 Amendments issued since publication Amd. No.DateText affected Committees responsible for this British Standard The preparation of this British Standard was entrusted by Technical Committee PVE/3, Gas containers, to Subcommittee PVE/3/1, Valve fittings for gas contain
5、ers, upon which the following bodies were represented: Aluminium Federation British Compressed Gases Association Health and Safety Executive Ministry of Defence Co-opted members BS EN 629-2 : 1996 BSI 1996i Contents Page Committees responsibleInside front cover National forewordii Foreword2 Text of
6、EN 629-23 ii BSI 1996 BS EN 629-2 : 1996 National foreword This British Standard has been prepared by Subcommittee PVE/3/1 and is the English language version of EN 629-2 : 1996 Transportable gas cylinders 25E taper thread for connection to gas cylinders Part 2: Gauge inspection, published by the Eu
7、ropean Committee for Standardization (CEN). EN 629-2 was produced as a result of international discussion in which the United Kingdom took part. Cross-references Publication referred toCorresponding British Standard EN 629-1 : 1996BS EN 629 Transportable gas cylinders 25E taper thread for connection
8、 to gas cylinders Part 1 : 1996 Specification Compliance with a British Standard does not of itself confer immunity from legal obligations. CEN European Committee for Standardization Comite Europe en de Normalisation Europa isches Komitee fu r Normung Central Secretariat: rue de Stassart 36, B-1050
9、Brussels 1996 All rights of reproduction and communication in any form and by any means reserved in all countries to CEN and its members. Ref. No. EN 629-2 : 1996 E EUROPEAN STANDARDEN 629-2 NORME EUROPE ENNE EUROPA ISCHE NORM June 1996 ICS 23.020.30 Descriptors: Gas cylinders, gas valves, junctions
10、, tapered screw threads, specifications, dimensions, dimensional measurements, standard gauges English version Transportable gas cylinders 25E taper thread for connection of valves to gas cylinders Part2: Gauge inspection Bouteilles a gaz transportables Filetages coniques 25E pour le raccordement de
11、s robinets sur les bouteilles a gaz Partie 2: Calibres de ve rification Ortsbewegliche Gasflaschen 25E kegeliges Gewinde zum Anschlub von Ventilen an Gasflaschen Teil 2: Lehrenpru fung This European Standard was approved by CEN on 1995-12-03. CEN members are bound to comply with the CEN/CENELEC Inte
12、rnal 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 concerning such national standards may be obtained on application to the Central Secretariat or to any CEN membe
13、r. 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 language and notified to the Central Secretariat has the same status as the official versions. CEN members
14、are the national standards bodies of Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. Page 2 EN 629-2 : 1996 BSI 1996 Foreword This European Standard has been prepared by Te
15、chnical Committee CEN/TC 23, Transportable gas cylinders, the secretariat of which is held by BSI. 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 December 1996, and conflicting national standards
16、 shall be withdrawn at the latest by December 1996. 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, Iceland, Ireland, Italy,
17、Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. Contents Page Foreword Introduction 1Scope3 2Normative reference3 3Definitions3 4Requirements3 5Gauge dimensions3 6Inspection gauges5 7Use of inspection gauges12 8Verification of inspection gauges13 9Identi
18、fication13 Annex A (informative) Examples of calculation for thread gauge dimensions on the large end diameter15 Annex B (informative) Limitations of gauging system15 Page 3 EN 629-2 : 1996 BSI 1996 Introduction This European Standard is a two part standard, belonging to a series of standards specif
19、ying thread dimensions and gauge requirements: Part 1: Specification; Part 2: Gauge inspection. 1 Scope This European Standard specifies types, dimensions and principles of use of gauges, to be used in conjunction with the taper thread specified in EN 629-1. Annex A provides examples of calculations
20、 for thread gauge dimensions on the large end diameter. Annex B draws attention to the limitations of the gauging system specified. 2 Normative reference This European Standard incorporates by dated or undated reference, provisions from other publications. These normative references are cited at the
21、 appropriate places in the text and the publications are listed hereafter. For dated references, subsequent amendments to or 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
22、publication referred to applies. EN 629-1Transportable gas cylinders 25E taper thread for connection of valves to gas cylinders Part 1: Specification 3 Definitions For the purposes of this standard, the following definitions apply. 3.1 inspection gauge Gauge used for the routine gauging of cylinder
23、neck and valve stem threads. This gauge is not used for checking other gauges. 3.2 check gauge Gauge for checking dimensional conformity of inspection ring gauges. This gauge is not used for gauging cylinder neck threads. 3.3 single part gauge Gauge of sufficient length to contact the full length of
24、 taper thread. These gauges are plug or ring, plain or threaded. 3.4 two part gauges Two separate inspection gauges, used in combination, where one is used to contact the large end of the taper cone and the other the small end. These sets of gauges are plug or ring, plain or threaded. 4 Requirements
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