1、BS EN ISO 11363-1:2010ICS 21.040.30; 23.020.30NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBRITISH STANDARDGas cylinders 17E and 25E taper threads for connection of valves to gas cylindersPart 1: Specifications (ISO 11363-1:2010)Incorporating corrigendApril 2011 anda January
2、 2012National forewordThis British Standard is the UK implementation of EN ISO 11363-1:2010. It is identical to ISO 11363-1:2010, incorporating corrigenda April 2011 and January 2012. It supersedes BS EN 629-1:1996 and BS EN ISO 11116-1:1999 which are withdrawn.The UK participation in its preparatio
3、n was entrusted to Technical Committee PVE/3, Gas containers.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 are responsible for its correct application. C
4、ompliance with a British Standard cannot confer immunity from legal obligations.BS EN ISO 11363-1:2010This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 July 2010 The British Standards Institution 2013. Published by BSI Standards Limited 2013
5、.Amendments/corrigenda issued since publicationDateComments 31 July 2011 Implementation of ISO corrigendum April 2011: modification of text in Figure 330 June 2013 Implementation of ISO corrigendum January 2012: modification of text in Figure 3ISBN 978 0 580 77381 5EUROPEAN STANDARD NORME EUROPENNE
6、EUROPISCHE NORM EN ISO 11363-1 May 2010 ICS 23.020.30 Supersedes EN 629-1:1996, EN ISO 11116-1:1999English Version Gas cylinders - 17E and 25E taper threads for connection of valves to gas cylinders - Part 1: Specifications (ISO 11363-1:2010) Bouteilles gaz - Filetages coniques 17E et 25E pour le ra
7、ccordement des robinets sur les bouteilles gaz - Partie 1: Spcifications (ISO 11363-1:2010) Gasflaschen - 17E und 25E kegeliges Gewinde zur Verbindung von Ventilen mit Gasflaschen - Teil 1: Spezifikationen (ISO 11363-1:2010) This European Standard was approved by CEN on 23 January 2010. CEN members
8、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 concerning such national standards may be obtained on application t
9、o the CEN Management Centre 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 language and notified to the CEN Management Centre has the s
10、ame status as the official versions. CEN members are the 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,
11、Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, 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 m
12、eans reserved worldwide for CEN national Members. Ref. No. EN ISO 11363-1:2010: EIncorporating corrigenda April 2011 and January 2012Foreword This document (EN ISO 11363-1:2010) has been prepared by Technical Committee ISO/TC 58 “Gas cylinders“ in collaboration with Technical Committee CEN/TC 23 “Tr
13、ansportable 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 November 2010, and conflicting national standards shall be withdrawn at the late
14、st by November 2010. Attention is drawn to the possibility 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 629-1:1996, EN ISO 11116-1:1999. Acco
15、rding to the CEN/CENELEC Internal Regulations, the national 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, It
16、aly, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. Endorsement notice The text of ISO 11363-1:2010 has been approved by CEN as a EN ISO 11363-1:2010 without any modification. BS EN ISO 1136
17、3-1:2010EN ISO 11363-1:2010 (E)iiiContents Page Foreword iv Introduction.v 1 Scope1 2 Terms and definitions .1 2.1 General .1 2.2 Terms relating to cones2 2.3 Terms relating to diameter .2 2.4 Terms relating to reference 3 3 Requirements.4 3.1 Thread handedness.4 3.2 Taper.4 3.3 Thread profile.4 3.4
18、 Pitch, P4 3.5 Dimensions 4 4 Thread end finish.7 5 Marking.8 Bibliography9 BS EN ISO 11363-1:2010EN ISO 11363-1:2010 (E) ISO 2011 iv Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing In
19、ternational 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 represented on that committee. International organizations, governmental and non-governmental, in liaison
20、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 drafted in accordance with the rules given in the ISO/IEC Directives, Part 2. The main task of techn
21、ical committees is to prepare International Standards. 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 vote. Attention is drawn
22、 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 any or all such patent rights. ISO 11363-1 was prepared by Technical Committee ISO/TC 58, Gas cylinders, Subcommittee SC 2, Cylinder fittings. This fi
23、rst edition of ISO 11363-1 cancels and replaces ISO 10920:1997 and ISO 11116-1:1999. 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-
24、1:2010EN ISO 11363-1:2010 (E) ISO 2011 vIntroduction Gas cylinders 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 cylinde
25、r and valve is obtained by assembly of two taper-threads (an 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 11363-1:2010EN ISO 11363-1:2010 (E) ISO 2011 BS EN ISO 11363-1:2010EN ISO 11363-1:2010
26、 (E) ISO 2011 INTERNATIONAL STANDARD1Gas cylinders 17E and 25E taper threads for connection of valves to gas cylinders Part 1: Specifications 1 Scope This part of ISO 11363 specifies dimensions and tolerances for taper screw threads of nominal diameter 17,4 mm (designated 17E) and 25,8 mm (designate
27、d 25E) used for the connection of valves to gas cylinders. It does not cover the connection requirements for: mechanical strength; gas tightness; capability of repeated assembly and dismounting operations. Gauge inspection is covered by ISO 11363-2. 2 Terms and definitions For the purposes of this d
28、ocument, the following terms and definitions apply. 2.1 General 2.1.1 basic profile theoretical profile, when the profile of the external thread coincides with the profile of the internal thread 2.1.2 design profile design profile differs from the basic profile due to the radius of the root, necessa
29、ry for manufacturing and strength requirements NOTE For such a profile, manufacturing tolerances are taken into account. 2.1.3 length of external thread, l2length of full form thread on the valve stem, measured along the cone axis from the reference plane A NOTE See Figure 1, Table 1 and Table 3. 2.
30、1.4 length of internal thread, L2length of full form thread in the cylinder neck, measured along the cone axis from the reference plane F EN ISO 11363-1:2010 (E)BS EN ISO 11363-1:2010 ISO 2011 2 NOTE See Figure 1, Table 2 and Table 4. 2.1.5 pitch P distance, measured parallel to the cone surface, be
31、tween two homologous points of two parallel consecutive flanks of the same thread NOTE See Figures 2 and 3. 2.1.6 taper ratio of the difference of two diameters corresponding to planes normal to the axis of the reference cone, and the axial distance between the same planes NOTE Taper can be expresse
32、d as a ratio, as an angle or as a percentage. 2.1.7 thread profile thread shape obtained by the intersection of a plane through the thread axis and the threaded surface 2.1.8 valve stem tapered end of the valve body (inlet connection), with a thread formed on the external surface of the truncated co
33、ne NOTE See Figure 1. 2.1.9 cylinder neck thread tapered axial hole in the cylinder neck, with a thread formed on the internal surface of the truncated cone NOTE See Figure 1. 2.2 Terms relating to cones 2.2.1 major cone cone bounding the crests of the thread of the valve stem, or the roots of the c
34、ylinder neck thread 2.2.2 minor cone cone bounding the roots of the thread, of the valve stem, or the crests of the cylinder neck thread 2.2.3 pitch cone cone passing, coaxially and midway, between the major and minor cones 2.3 Terms relating to diameter NOTE See Figure 1. 2.3.1 major diameter, d1ed
35、iameter of the major cone at the valve stem thread reference plane A (before any chamfer is cut) 2.3.2 major diameter, D1ediameter of the major cone at reference plane G BS EN ISO 11363-1:2010EN ISO 11363-1:2010 (E) ISO 2011 32.3.3 minor diameter, d1idiameter of the minor cone at the valve stem thre
36、ad reference plane A (before any chamfer is cut) 2.3.4 minor diameter, D1idiameter of the minor cone at reference plane G 2.3.5 pitch diameter, d1pdiameter of the pitch cone at the valve stem thread reference plane A (before any chamfer is cut) 2.3.6 pitch diameter, d2pdiameter of the pitch cone at
37、reference plane B 2.3.7 pitch diameter, D1pdiameter of the pitch cone at reference plane G 2.3.8 pitch diameter, D2pdiameter of the pitch cone at reference plane F (before any chamfer is cut) 2.4 Terms relating to reference NOTE See Figure 1. 2.4.1 reference length, l1reference dimension being the d
38、istance between the parallel reference planes A and B 2.4.2 reference length, L1reference dimension being the distance between the parallel reference planes F and G 2.4.3 reference plane A reference plane coincident with the small end face of the threaded valve stem and corresponding to diameters d1
39、i, d1pand d1e2.4.4 reference plane B reference plane at a distance l1from reference plane A and corresponding to diameter d2p2.4.5 reference plane F reference plane coincident with the entry section face of the cylinder neck thread and corresponding to pitch diameter D2p2.4.6 reference plane G refer
40、ence plane at a distance L1from reference plane F and corresponding to diameter D1e, D1pand D1iBS EN ISO 11363-1:2010EN ISO 11363-1:2010 (E) ISO 2011 4 3 Requirements 3.1 Thread handedness The thread shall be a right-hand thread, such that it moves away from an observer when rotated clockwise. 3.2 T
41、aper The nominal values for the taper are the following. Taper ratio: 3/25. Taper angle: 6 52. Taper slope: 12 %. 3.3 Thread profile The thread profile is a British Standard Whitworth (BSW)1)form with a 55 angle. The form and thread height measurements are perpendicular to the cone surface (see Figu
42、re 3). It is crucial that the thread profile is cut in this way and not perpendicular to the axis of the cone. 3.4 Pitch, P The nominal pitch is 1,814 mm (derived from 25,4mm14) (see Figure 3). 3.5 Dimensions Dimensions are given in Figure 1 and the values are given in Table 4. 1) A coarse thread de
43、vised 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 ISO metric system (I
44、SO 68-1). BS EN ISO 11363-1:2010EN ISO 11363-1:2010 (E) ISO 2011 5Dimensions in millimetres Key 1 valve stem thread profile 2 cylinder neck thread profile D2ppitch diameter L1reference length L2length of internal thread F reference plane, F G reference plane, G Figure 1 Thread reference planes and d
45、iameters BS EN ISO 11363-1:2010EN ISO 11363-1:2010 (E) ISO 2011 6 Table 1 Valve stem thread dimensions for 17E Dimensions in millimetres Major diameter Pitch diameter Minor diameter Pitch diameter Reference length Length of external threadValve stem d1ed1pd1id2pl1l2Dimension 17,28 16,118 14,956 18,6
46、38 21 W 21 Tolerance 0,120+0,120+0,120+0,120+ Table 2 Cylinder neck thread dimensions for 17E Dimensions in millimetres Major diameter Pitch diameter Minor diameter Pitch diameter Reference length Length of internal threadCylinder neck thread D1eD1pD1iD2pL1L2Dimension 17,16 15,998 14,834 18,038 17 W
47、 17 Tolerance 00,1200,1200,1200,12 Table 3 Valve stem thread dimensions for 25E Dimensions in millimetres Major diameter Pitch diameter Minor diameter Pitch diameter Reference length Length of external threadValve stem d1ed1pd1id2pl1l2Dimension 25,68 24,518 23,356 27,638 26 W 26 Tolerance 0,120+0,120+0,120+0,120+ Table 4 Cylinder neck thread dimensions for 25E Dimensions in millimetres Major diameter Pit
