1、BS EN ISO11363-2:2010ICS 21.040.30; 23.020.30NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBRITISH STANDARDGas cylinders 17Eand 25E taper threadsfor connection ofvalves to gas cylindersPart 2: Inspection gauges (ISO11363-2:2010)This British Standard was published under the au
2、thority of the Standards Policy and Strategy Committee on 31 July2010 BSI 2010ISBN 978 0 580 63530 4Amendments/corrigenda issued since publicationDate CommentsBS EN ISO 11363-2:2010National forewordThis British Standard is the UK implementation of EN ISO 11363-2:2010. It supersedes BS EN 629-2:1996
3、and BS EN ISO 11116-2:1999 which are withdrawn.The UK participation in its preparation was entrusted to Technical Committee PVE/3/1, Gas containers - Valve fittings for gas containers.A list of organizations represented on this committee can be obtained on request to its secretary.This publication d
4、oes not purport to include all the necessary provisions of a contract. Users are responsible for its correct application.Compliance with a British Standard cannot confer immunity from legal obligations.EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 11363-2 May 2010 ICS 23.020.30 Supersedes
5、 EN 629-2:1996, EN ISO 11116-2:1999English Version Gas cylinders - 17E and 25E taper threads for connection of valves to gas cylinders - Part 2: Inspection gauges (ISO 11363-2:2010) Bouteilles gaz - Filetages coniques 17E et 25E pour le raccordement des robinets sur les bouteilles gaz - Partie 2: Ca
6、libres de contrle (ISO 11363-2:2010) Gasflaschen - 17E und 25E kegeliges Gewinde zur Verbindung von Ventilen mit Gasflaschen - Teil 2: Lehreninspektion (ISO 11363-2:2010) This European Standard was approved by CEN on 23 January 2010. CEN members are bound to comply with the CEN/CENELEC Internal Regu
7、lations 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 CEN Management Centre or to any CEN member. This
8、 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 CEN Management Centre has the same status as the official versions. CEN members are t
9、he national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden,
10、Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2010 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref.
11、 No. EN ISO 11363-2:2010: EBS EN ISO 11363-2:2010EN ISO 11363-2:2010 (E) 3 Foreword This document (EN ISO 11363-2:2010) has been prepared by Technical Committee ISO/TC 58 “Gas cylinders“ in collaboration with Technical Committee CEN/TC 23 “Transportable gas cylinders” the secretariat of which is hel
12、d 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 November 2010, and conflicting national standards shall be withdrawn at the latest by November 2010. Attention is drawn to the possibility
13、 that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This document supersedes EN 629-2:1996, EN ISO 11116-2:1999. According to the CEN/CENELEC Internal Regulations, the nationa
14、l standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, No
15、rway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. Endorsement notice The text of ISO 11363-2:2010 has been approved by CEN as a EN ISO 11363-2:2010 without any modification. BS EN ISO 11363-2:2010ISO 11363-2:2010(E) ISO 2010 All rights reserved i
16、iiContents Page Foreword iv Introduction.v 1 Scope1 2 Normative references1 3 Terms and definitions .1 4 Requirements.2 4.1 Materials .2 4.2 Thread profile.2 4.3 Thread handedness.4 4.4 Taper.4 4.5 Pitch, P4 5 Gauge dimensions 4 6 Inspection gauges .5 6.1 Gauges for cylinder neck thread .5 6.2 Gauge
17、s for valve stem thread 7 7 Check gauges 9 8 Use of inspection gauges.9 8.1 Plain gauges 9 8.2 Threaded plug gauges 9 8.3 Accept or reject criteria using plug gauges .9 8.4 Accept or reject criteria using ring gauges 10 9 Verification of inspection gauges11 9.1 General .11 9.2 Plug gauges .12 9.3 Ri
18、ng gauges .12 9.4 Use of check plug gauges 12 10 Identification 12 10.1 Inspection gauges .12 10.2 Check gauges 13 Annex A (informative) Examples of calculation for thread gauge dimensions on the large end diameter14 Annex B (informative) Limitation of gauging system16 Bibliography18 BS EN ISO 11363
19、-2:2010ISO 11363-2:2010(E) iv ISO 2010 All rights reservedForeword ISO (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 through ISO technical committe
20、es. 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 collaborates closely with the Inte
21、rnational Electrotechnical Commission (IEC) on all matters of electrotechnical 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 S
22、tandards 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 vote. Attention is drawn to the possibility that some of the elements of this document may be the su
23、bject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. ISO 11363-2 was prepared by Technical Committee ISO/TC 58, Gas cylinders, Subcommittee SC 2, Cylinder fittings. This first edition of ISO 11363-2 cancels and replaces ISO 11116-2:1999 and ISO 111
24、91:1997. ISO 11363 consists of the following parts, under the general title Gas cylinders 17E and 25E taper threads for connection of valves to gas cylinders: Part 1: Specifications Part 2: Inspection gauges BS EN ISO 11363-2:2010ISO 11363-2:2010(E) ISO 2010 All rights reserved vIntroduction Gas cyl
25、inders intended to contain compressed, liquefied or dissolved gas under pressure are fitted with accessories to allow release and refilling of gas. Hereinafter, the term “valve” will apply to such accessories. The connection between cylinder and valve is obtained by assembly of two taper-threads (an
26、 external one on the valve stem and an internal one in the cylinder neck), both having the same nominal taper, thread pitch and thread profile. BS EN ISO 11363-2:2010BS EN ISO 11363-2:2010INTERNATIONAL STANDARD ISO 11363-2:2010(E) ISO 2010 All rights reserved 1Gas cylinders 17E and 25E taper threads
27、 for connection of valves to gas cylinders Part 2: Inspection gauges 1 Scope This part of ISO 11363 specifies types, dimensions and principles of use of gauges, to be used in conjunction with the taper threads specified in ISO 11363-1 (i.e. 17E and 25E threads). It provides examples of calculations
28、for thread gauge dimensions on the large end diameter (Annex A) and draws attention to the limitations of the gauging system specified (Annex B). 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition c
29、ited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 11363-1, Gas cylinders 17E and 25E taper threads for connection of valves to gas cylinders Part 1: Specifications 3 Terms and definitions For the purposes of this document, the
30、 terms and definitions given in ISO 11363-1 and the following apply. 3.1 check gauge gauge for checking dimensional conformity of inspection gauges NOTE This gauge is not used for gauging cylinder neck threads or valve stem threads. 3.2 inspection gauge gauge used for the routine gauging of cylinder
31、 neck and valve stem threads NOTE This gauge is not used for checking other gauges. 3.3 single-part gauge gauge of sufficient length to contact the length of full form taper threads NOTE These gauges are either plugs or rings, plain or threaded. BS EN ISO 11363-2:2010ISO 11363-2:2010(E) 2 ISO 2010 A
32、ll rights reserved3.4 two-part gauge gauge consisting of 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 NOTE These sets of gauges are either plugs or rings, plain or threaded. 4 Requirements 4.1 Materials
33、All gauges shall be manufactured from material of suitable strength, stability and hardness. 4.2 Thread profile The thread profile of threaded inspection and check gauges shall be as shown in Figure 1. The thread profile is a British Standard Whitworth (BSW)1)form with a 55 angle (see Figure 1). 1)
34、A coarse thread devised and standardized in 1841 by British engineer Sir Joseph Whitworth (1803-87). It has an angle of thread of 55 and ranges in size from 1/16 in to 2 1/2 in. It is used in many types of engineering throughout the world, although in the UK its use is now being superseded by the IS
35、O metric system (ISO 68-1). BS EN ISO 11363-2:2010ISO 11363-2:2010(E) ISO 2010 All rights reserved 3Dimensions in millimetres Key P pitch 1 plug gauge thread profile 2 ring gauge thread profile aGauge plane. dPitch diameter. gMinor diameter. bThread axis. eMaximum minor diameter. hMaximum major diam
36、eter. cMajor diameter. fMinimum minor diameter. iMinimum major diameter. Figure 1 Thread profiles BS EN ISO 11363-2:2010ISO 11363-2:2010(E) 4 ISO 2010 All rights reserved4.3 Thread handedness The thread shall be a right-hand thread, such that it moves away from an observer when rotated clockwise. 4.
37、4 Taper The nominal values for the taper are the following. Taper ratio: 3/25. Taper angle: 6 52. Taper slope: 12 %. 4.5 Pitch, P The nominal pitch is 1,814 mm (derived from25,4mm14) (see Figure 1). 5 Gauge dimensions The following dimensional requirements apply to gauges shown in Figure 2 to Figure
38、 15, inclusive. All dimensions are given in millimetres. Tolerances for specified dimensions on all gauges are: all lengths, 0,01 mm; diameters of inspection gauges, 0,01 mm; diameters of check gauges,0,01mm0,02 mm. For threaded gauges, only pitch diameters are specified. For minor and major diamete
39、rs see Figure 1. Unspecified dimensions shall be chosen by the manufacturer of the gauges. BS EN ISO 11363-2:2010ISO 11363-2:2010(E) ISO 2010 All rights reserved 56 Inspection gauges 6.1 Gauges for cylinder neck thread 6.1.1 Single-part plug gauges Dimensions in millimetres Key Thread 17E 25E Thread
40、 17E 25E A 16,876 25,476 A 18,038 26,638 B 1 1 B 1 1 C 17 22 C 17 22 D 14,836 22,836 D 15,998 23,998 Figure 2 Plain plug gauge for minor diameters “I-1” Figure 3 Threaded plug gauge for pitch diameters “I-2” BS EN ISO 11363-2:2010ISO 11363-2:2010(E) 6 ISO 2010 All rights reserved6.1.2 Two-part plug
41、gauges, small end diameter Dimensions in millimetres Key Thread 17E 25E Thread 17E 25E A 1 1 A 1 1 B 17 22 B 17 22 C 8 8 C 8 8 D 14,836 22,836 D 15,998 23,998 Figure 4 Plain plug gauge for minor diameters “I-3” Figure 5 Threaded plug gauge for pitch diameters “I-4” BS EN ISO 11363-2:2010ISO 11363-2:
42、2010(E) ISO 2010 All rights reserved 76.1.3 Two-part plug gauges, large end diameter Dimensions in millimetres Key Thread 17E 25E Thread 17E 25E A 16,876 25,476 A 18,038 26,638 B 1 1 B 1 1 C 8 8 C 8 8 Figure 6 Plain plug gauge for minor diameters “I-5” Figure 7 Threaded plug gauge for pitch diameter
43、s “I-6” 6.2 Gauges for valve stem thread 6.2.1 Single-part ring gauges Dimensions in millimetres Key Thread 17E 25E Thread 17E 25E A 19,80 28,8 A 18,638 27,638 B 21 26 B 21 26 C 1 1 C 1 1 D 17,40 25,8 D 16,238 24,638 Figure 8 Plain ring gauge for major diameters “I-7” Figure 9 Threaded ring gauge fo
44、r pitch diameters “I-8” BS EN ISO 11363-2:2010ISO 11363-2:2010(E) 8 ISO 2010 All rights reserved6.2.2 Two-part ring gauges, small end diameter Dimensions in millimetres Key Thread 17E 25E Thread 17E 25E A 8 8 A 8 8 B 1 1 B 1 1 C 17,40 25,8 C 16,238 24,638 Figure 10 Plain ring gauge for major diamete
45、rs “I-9” Figure 11 Threaded ring gauge for pitch diameters “I-10” 6.2.3 Two-part ring gauges, large end diameter Dimensions in millimetres Key Thread 17E 25E Thread 17E 25E A 19,8 28,8 A 18,638 27,638 B 8 8 B 8 8 C 21 26 C 21 26 D 1 1 D 1 1 Figure 12 Plain ring gauge for major diameters “I-11” Figur
46、e 13 Threaded ring gauge for pitch diameters “I-12” BS EN ISO 11363-2:2010ISO 11363-2:2010(E) ISO 2010 All rights reserved 97 Check gauges Dimensions in millimetres Key Thread 17E 25E Thread 17E 25E A 19,80 28,8 A 18,638 27,638 B 20 25 B 20 25 C 0,25 0,25 C 0,25 0,25 D 17,40 25,8 D 16,238 24,638 Fig
47、ure 14 Plain plug check gauge “M-1” Figure 15 Threaded plug check gauge “M-2” 8 Use of inspection gauges 8.1 Plain gauges Plain gauges shall be lightly pressed into position or over the thread being gauged. Care shall be taken not to use undue force. 8.2 Threaded plug gauges Threaded plug gauges sha
48、ll be screwed into, or over, the thread being gauged. Care shall be taken not to use undue force. 8.3 Accept or reject criteria using plug gauges Thread acceptability is determined by the position of the plane at the mouth of the cylinder neck relative to the test surfaces of the gauge. To meet acce
49、ptability, when using a plug gauge, this plane shall be flush with, or fall between, the test surfaces of the gauge when the gauge is fitted to the thread (see Figures 16 and 17). BS EN ISO 11363-2:2010ISO 11363-2:2010(E) 10 ISO 2010 All rights reservedaTest surface. Figure 16 Use of single-part plug gauge aTest surface. Figure 17 Use of two-part plug gauge 8.4 Accept or reject criteria using ring gauges Thread acceptability is determined by the position of
