EN ISO 11117-2008 en Gas cylinders - Valve protection caps and valve guards - Design construction and tests《气瓶 阀门保护盖和阀门防护装置 设计 结构和试验［代替 CEN EN 962］》.pdf

《EN ISO 11117-2008 en Gas cylinders - Valve protection caps and valve guards - Design construction and tests《气瓶 阀门保护盖和阀门防护装置 设计 结构和试验［代替 CEN EN 962］》.pdf》由会员分享，可在线阅读，更多相关《EN ISO 11117-2008 en Gas cylinders - Valve protection caps and valve guards - Design construction and tests《气瓶 阀门保护盖和阀门防护装置 设计 结构和试验［代替 CEN EN 962］》.pdf（20页珍藏版）》请在麦多课文档分享上搜索。

1、BS EN ISO11117:2008ICS 11.040.10, 23.020.30, 23.060.99NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBRITISH STANDARDGas cylinders Valveprotection caps andvalve guards Design,construction and tests(ISO 11117:2008)Incorporating corrigendum May 2009National forewordThis British

2、Standard is the UK implementation of EN ISO 11117:2008. It is identical to ISO 11117:2008, incorporating corrigendum May 2009. It supersedes BS EN 962:1997 and which is withdrawn.The UK participation in its preparation was entrusted by Technical Committee PVE/3/1, Valve fittings for gas containers.A

3、 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.Compliance with a British Standard cannot confer immunity from l

4、egal obligations.BS EN ISO 11117:2008This British Standard was published under the authority of the Standards Policy and Strategy Committee on 30 April 2009 BSI 2009Amendments/corrigenda issued since publicationDate Comments 31 August 2009 Implementation of ISO corrigendum May 2009, text added to Su

5、bclause 4.2ISBN 978 0 580 68178 3EUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN ISO 11117September 2008ICS 11.040.10; 23.020.30 Supersedes EN 962:1996 English VersionGas cylinders - Valve protection caps and valve guards -Design, construction and tests (ISO 11117:2008)Bouteilles gaz - Chapeaux fe

6、rms et chapeaux ouvertsde protection des robinets - Conception, construction etessais (ISO 11117:2008)Gasflaschen - Ventilschutzkappen und Ventilschutzkrbe -Auslegung, Bau und Prfungen (ISO 11117:2008)This European Standard was approved by CEN on 7 February 2008.CEN members are bound to comply with

7、the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the CEN Management Centre

8、 or to any CEN member.This European Standard exists in three official versions (English, French, German). A version in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as theofficial ver

9、sions.CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,Romania, Slovakia, Slovenia, Spa

10、in, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGManagement Centre: rue de Stassart, 36 B-1050 Brussels 2009 CEN All rights of exploitation in any form and by any means reservedworldwide for CEN national Memb

11、ers.Ref. No. EN ISO 11117:2009: EBS EN ISO 11117:2008EN ISO 11117:2008 (E) 3 Foreword This document (EN ISO 11117:2008) 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 he

12、ld 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 March 2009, and conflicting national standards shall be withdrawn at the latest by March 2009. Attention is drawn to the possibility that

13、 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 962:1996. According to the CEN/CENELEC Internal Regulations, the national standards organizations of

14、 the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slov

15、akia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. Endorsement notice The text of ISO 11117:2008 has been approved by CEN as EN ISO 11117:2008 without any modification. BS EN ISO 11117:2008ISO 11117:2008(E) ISO 2009 All rights reserved iiiContents Page Foreword iv Introduction v 1 Sc

16、ope . 1 2 Normative references . 1 3 Terms and definitions. 1 4 General requirements. 2 4.1 Cap . 2 4.2 Guard 2 4.3 Testing . 2 5 Materials 7 6 Type testing. 7 6.1 General. 7 6.2 Documentation 7 6.3 Number of test samples . 7 6.4 Preliminary check . 7 6.5 Torque test (one test) . 7 6.6 Axial test (o

17、ne test). 8 6.7 Drop test 8 7 Marking 9 8 Test report . 9 Annex A (normative) Marking of caps 10 BS EN ISO 11117:2008ISO 11117:2008(E) iv ISO 2009 All rights reservedForeword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member b

18、odies). 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 represented on that committee. International organizations, governmental a

19、nd 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 drafted in accordance with the rules given in the ISO/IEC Directives

20、, Part 2. The main task of technical 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 ca

21、sting a vote. Attention is drawn 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 11117 was prepared by Technical Committee ISO/TC 58, Gas cylinders, Subcommittee SC

22、 2, Cylinder fittings. This second edition cancels and replaces the first edition (ISO 11117:1998) which has been technically revised. BS EN ISO 11117:2008ISO 11117:2008(E) ISO 2009 All rights reserved vIntroduction This International Standard covers devices intended for the protection of gas cylind

23、er valves, where such protection is required, for example, where the valve is unable to meet the impact test requirements of the relevant valve standard to allow safe transport, handling and storage without such protection. This International Standard specifies the principal dimensions, requirements

24、 for fitment and drop test procedure, to confirm the provision of adequate valve protection, in the event of the occurrence of a cylinder toppling from its base. BS EN ISO 11117:2008INTERNATIONAL STANDARD ISO 11117:2008(E) ISO 2009 All rights reserved 1Gas cylinders Valve protection caps and valve g

25、uards Design, construction and tests 1 Scope This International Standard specifies the requirements for valve protection caps and guards for gas cylinders. This International Standard defines tests for checking the mechanical strength and physical properties of the valve protection cap or valve guar

26、d. This International Standard applies to protection devices for valves used on cylinders for liquefied, dissolved or compressed gases. This International Standard excludes protection devices for cylinders with a water capacity of 5 l or less and cylinders whereby the protection device is fixed by m

27、eans of lugs welded or brazed to the cylinder, or is welded or brazed directly to the cylinder. This International Standard does not cover valve protection for breathing apparatus cylinders. This International Standard does not specify all the requirements that may be necessary to enable the valve p

28、rotection device to be used for lifting the cylinder. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (includi

29、ng any amendments) applies. ISO 10297, Transportable gas cylinders Cylinder valves Specification and type testing ISO 14245, Gas cylinders Specifications and testing of LPG cylinder valves Self-closing ISO 15995, Gas cylinders Specifications and testing of LPG cylinder valves Manually operated 3 Ter

30、ms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 valve protection cap cap device securely fixed over the valve during handling, transportation and storage and which is removed for access to the valve 3.2 valve guard guard device protecting the valv

31、e during handling, transportation, storage NOTE The guard need not be removed to provide access to the valve. BS EN ISO 11117:2008ISO 11117:2008(E) 2 ISO 2009 All rights reserved3.3 permitted mass mass of the cylinder, together with its permanent attachments and test substance contents, as used duri

32、ng the drop test See 6.7. 3.4 test valve gas filling and/or dispensing device used to verify the guard or protection cap approval in accordance with this International Standard and which represents the valve of equal or lesser dimensions for which approved guards or protection caps provide suitable

33、protection 4 General requirements 4.1 Cap The cap shall be of adequate strength to protect the valve during handling and transportation. It shall be capable of being securely fixed to the cylinder, either by screwed thread or other suitable means. Provision should be made for assisted fitting or rem

34、oval of the cap, for example, a hexagonal section. Unless otherwise specified, the cap shall be provided with vent hole(s), e.g. by diametrically opposed vent holes of 10 mm diameter. Two diametrically opposite vent holes shall be provided, each of them having a minimum diameter of 10 mm. (When the

35、cap has no vent hole, the valve outlet passage of the cylinder shall be plugged to prevent leakage and subsequent pressure build up in the cap.) Caps designed for use with valve dimensions in accordance with ISO 10297, as applicable, shall conform to dimensions given in Figure 1 and preferably Figur

36、e 4 where a threaded fixing connection is used. Caps designed for use with valves with dimensions other than those given in ISO 10297 shall be tested with the intended largest valve. The cap shall be of such dimensions as not to contact any part of the valve. See Tables 1 and 2. 4.2 Guard The guard

37、shall be of adequate strength to protect the valve during handling and transportation. It shall be fixed so as to prevent easy removal by the end user or dismantling under normal service conditions. The design shall permit ready access for valve operation and assembly of operational equipment. When

38、the guard is of a rotating type, it shall be capable of manual orientation. The clearance dimensions of the guard given in Figure 2 are typical for valves designed in accordance with ISO 10297. The centre of the opening in the guard shall be within 10 mm of the valve outlet axis. The opening shall n

39、ot extend below the reference plane. Where a threaded fixing connection is used, the preferred thread dimensions are given in Figure 4. Figure 3 gives examples of guards. 4.3 Testing Type testing of the protection devices shall be performed in accordance with the procedure described in Clause 6. If

40、the guard is fixed only to the valve and not fixed to the cylinder then the valve type shall pass the valve impact test of ISO 10297 because in this situation the valve to cylinder connection shall carry the impact load. Therefore its capability to resist impact needs to be verified. BS EN ISO 11117

41、:2008ISO 11117:2008(E) ISO 2009 All rights reserved 3Dimensions in millimetres Key 1 cap with open top 5 cylinder neck ring 2 closed cap 6 reference plane 3 cylinder axis 7 example A 4 vent W 10 mm 8 example B a 80 2,309 Whitworth. NOTE 1 The outlines and dimensions given are typical for caps in com

42、mon use. Any other shape or dimension can be used, provided they give appropriate clearance around the valve. NOTE 2 The preferred 80 mm fixing connection is shown. Alternative sizes, e.g. 78 mm, can be used. Caps for such cylinders should have the appropriate dimensions. NOTE 3 For open tops, water

43、 drainage should be considered. Figure 1 Basic dimensions of valve protection caps and neck rings BS EN ISO 11117:2008ISO 11117:2008(E) 4 ISO 2009 All rights reservedDimensions in millimetres Key H height of the guard (at least 1 mm greater than the projection of the fully open valve above the refer

44、ence plane) r maximum radius of handwheel 1 axis of the valve outlet 2 reference plane aMeasured at the lowest position of the handwheel. b 80 2,309 Whitworth. NOTE 1 The outlines and dimensions given are typical for guards in common use. Any other shape or dimensions can be used, providing they giv

45、e appropriate clearance around the valve. NOTE 2 The preferred 80 mm fixing connection is shown. Alternative sizes, e.g. 78 mm can be used. Guards for such cylinders should have the appropriate dimensions. NOTE 3 For valve details see ISO 10297, ISO 14245 and ISO 15995. NOTE 4 Provisions for water d

46、rainage should be considered. Figure 2 Basic dimensions of valve guard BS EN ISO 11117:2008ISO 11117:2008(E) ISO 2009 All rights reserved 5a) b) c) d) e) f) g) Figure 3 Examples of valve guards BS EN ISO 11117:2008ISO 11117:2008(E) 6 ISO 2009 All rights reserved25,4p= zr = 0,137 329 p H = 0,960 491

47、p H1= 0,640 327 p Key 1 cap or guard thread profile 2 cylinder neck ring thread profile NOTE Other recognized thread forms are permitted, provided that all test requirements of this International Standard are met. Figure 4 Thread Table 1 Dimensions of the thread Dimensions in millimetres Nominal dia

48、meter Major diameter Pitch diameter Minor diameter Pitch Number of threads per inch Thread height Radius d = D D2= D2D1= D1p z H1r W 80 80 78,521 77,042 2,309 11 1,479 0,317 Table 2 Tolerances of the thread Dimensions in millimetres Cylinder neck ring Cap or guard Nominal diameter Major diameter d P

49、itch diameter d2Minor diameterd1Major diameterD Pitch diameter D2Minor diameterD10,055 0 0 a +0,280 +0,630 W 80 0,530 0,280 0,450 0 0 +0,155 aNo maximum tolerance is specified but satisfactory operation shall be ensured. BS EN ISO 11117:2008ISO 11117:2008(E) ISO 2009 All rights reserved 75 Materials The cap or guard shall withstand impacts and falls throughout the whole range of operating temperatures from 20 C to +20 C. The relationship between material properties and operating temperatu