BS EN ISO 14245-2010 Gas cylinders - Specifications and testing of LPG cylinder valves - Self-closing《气瓶 液化石油气瓶阀门的试验和规范 自闭合》.pdf

1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS EN ISO 14245:2010Gas cylinders Specificationsand testing of LPG cylindervalves Self-closing (ISO14245:2006)BS EN ISO 14245:2010 BRITISH STANDARDNational forewordThis British S

2、tandard is the UK implementation of EN ISO14245:2010. It is identical to ISO 14245:2006. It supersedes BS EN13152:2002 and BS ISO 14245:2006 which are withdrawnThe UK participation in its preparation was entrusted to TechnicalCommittee PVE/19, LPG containers and their associated fittings.A list of o

3、rganizations represented on this committee can beobtained on request to its secretary.This publication does not purport to include all the necessaryprovisions of a contract. Users are responsible for its correctapplication. BSI 2010ISBN 978 0 580 69007 5ICS 23.020.30; 23.060.40Compliance with a Brit

4、ish Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 31 July 2010.Amendments issued since publicationDate Text affected.EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 14245 June 20

5、10 ICS 23.020.30 Supersedes EN 13152:2001English Version Gas cylinders - Specifications and testing of LPG cylinder valves - Self-closing (ISO 14245:2006) Bouteilles gaz - Spcifications et essais pour valves de bouteilles de GPL - Fermeture automatique (ISO 14245:2006) Gasflaschen - Spezifikation un

6、d Prfung von Flaschenventilen fr Flssiggas (LPG) - Selbstschlieend (ISO 14245:2006) This European Standard was approved by CEN on 20 May 2010. 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 na

7、tional 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 European Standard exists in three official versions (English, French, German). A version i

8、n 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 the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic

9、, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NOR

10、MALISATION 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. No. EN ISO 14245:2010: EBS EN ISO 14245:2010EN ISO 14245:2010 (E) 3 Foreword The text of I

11、SO 14245:2006 has been prepared by Technical Committee ISO/TC 58 “Gas cylinders” of the International Organization for Standardization (ISO) and has been taken over as EN ISO 14245:2010 by Technical Committee CEN/TC 286 “Liquefied petroleum gas equipment and accessories” the secretariat of which is

12、held by NSAI. 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 2010, and conflicting national standards shall be withdrawn at the latest by December 2010. Attention is drawn to the possibi

13、lity 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 13152:2001. According to the CEN/CENELEC Internal Regulations, the national standards organ

14、izations 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, Norway, Poland, Por

15、tugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. Endorsement notice The text of ISO 14245:2006 has been approved by CEN as a EN ISO 14245:2010 without any modification. BS EN ISO 14245:2010ISO 14245:2006(E) ISO 2006 All rights reserved iiiContents Page Foreword

16、iv Introduction v 1 Scope . 1 2 Normative references . 1 3 Terms and definitions. 1 4 Design and specification . 4 4.1 General. 4 4.2 Materials 4 4.3 Essential components 5 4.4 Optional components. 6 4.5 Leak tightness. 7 5 Valve type test. 7 5.1 General. 7 5.2 Test procedure and test requirements .

17、 7 5.3 External and internal tightness tests (Tests nos. 2, 6, 8, 9, 10, 12, 14, 15, 16 and 17). 9 5.4 External and internal tightness test (Test no. 2) . 10 5.5 Valve closure test (Test no. 3) . 10 5.6 Operation test (Test no. 4) . 11 5.7 Valve stem test (Test no. 5) . 11 5.8 External and internal

18、tightness test (Test no. 6) . 12 5.9 Impact test (Test no. 7). 12 5.10 External and internal tightness test (Test no. 8) . 12 5.11 External and internal tightness test (Test no. 9) . 12 5.12 External and internal tightness test after ageing (Test no. 10) 13 5.13 Endurance test Part 1 (Test no. 11) 1

19、3 5.14 External and internal tightness test after endurance test Part 1 (Test no. 12) 13 5.15 Endurance test Part 2 (Test no. 13) 13 5.16 Tightness test at valve outlet seal after endurance test Part 2 (Test no. 14). 14 5.17 External and internal tightness test (Test no. 15) . 14 5.18 External and i

20、nternal tightness test High temperature (Test no. 16) 14 5.19 External and internal tightness test Low temperature (Test no. 17). 14 5.20 Simulated vacuum test (Test no. 18) 14 5.21 Examination of dismantled valves nos. 4, 5 and 6 (Test no. 19) 15 5.22 Acceptance criteria. 15 6 Documentation/test re

21、port. 15 6.1 Documentation 15 6.2 Test report . 15 7 Markings 15 Annex A (normative) Valve dimensions. 16 Annex B (informative) Production testing and inspection. 17 Annex C (normative) Special low temperature requirements for valves 18 Bibliography . 19 BS EN ISO 14245:2010ISO 14245:2006(E) iv ISO

22、2006 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 committees. Each member body interested in

23、 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 International Electrotechnical Commiss

24、ion (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 Standards adopted by the technical

25、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 subject of patent rights. ISO shall

26、not be held responsible for identifying any or all such patent rights. ISO 14245 was prepared by Technical Committee ISO/TC 58, Gas cylinders, Subcommittee SC 2, Cylinder fittings. BS EN ISO 14245:2010ISO 14245:2006(E) ISO 2006 All rights reserved vIntroduction This International Standard calls for

27、the use of substances and procedures that can be injurious to health if adequate precautions are not taken. It refers only to technical suitability and does not absolve the user from legal obligations relating to health and safety at any stage. It has been assumed in the drafting of this Internation

28、al Standard that execution of its provisions is entrusted to appropriately qualified and experienced people. BS EN ISO 14245:2010BS EN ISO 14245:2010INTERNATIONAL STANDARD ISO 14245:2006(E) ISO 2006 All rights reserved 1Gas cylinders Specifications and testing of LPG cylinder valves Self-closing 1 S

29、cope This International Standard specifies the requirements for design, specification and type testing for dedicated LPG self-closing cylinder valves specifically for use with transportable refillable LPG cylinders from 0,5 l up to 150 l water capacity. It includes references to associated equipment

30、 for vapour or liquid service. NOTE Annex B gives recommendations for production testing and inspection. This International Standard does not apply to fixed automotive installations. 2 Normative references The following referenced documents are indispensable for the application of this document. For

31、 dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 10920, Gas cylinders 25E taper thread for connection of valves to gas cylinders Specification ISO 11114-1, Transportable gas cylinders Comp

32、atibility of cylinder and valve materials with gas contents Part 1: Metallic materials ISO 11114-2, Transportable gas cylinders Compatibility of cylinder and valve materials with gas contents Part 2: Non-metallic materials ISO 11116-1, Gas cylinders 17E taper thread for connection of valves to gas c

33、ylinders Part 1: Specifications 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 liquefied petroleum gas LPG mixture of predominantly butane or propane with traces of other hydrocarbon gases classified in accordance with UN number 1965, hydroc

34、arbon gas mixture, liquefied, or NOS or UN number 1075, petroleum gases, liquefied NOTE In some countries, UN number 1011 and UN number 1978 may also be used to designate LPG. ISO 10464 BS EN ISO 14245:2010ISO 14245:2006(E) 2 ISO 2006 All rights reserved3.2 cylinder valve valve designed for use in o

35、ne or more of the following applications: liquid filling, liquid service, vapour service, liquid level indication 3.3 external tightness resistance to leakage through the valve body to or from the atmosphere, when the valve is open 3.4 internal tightness resistance to leakage across the valve seat,

36、or other internal sealing components, when the valve is closed 3.5 eduction tube tube fitted to the valve to allow withdrawal of liquid LPG with the cylinder in its normal operating position 3.6 fixed liquid level gauge control device, such as a dip tube in combination with a vent valve, to verify t

37、hat the predetermined maximum liquid level in a cylinder has been reached or surpassed 3.7 liquid level indicator control device, such as a float gauge, permitting the gauging of the liquid level in the cylinder 3.8 valve body major valve component including valve stem and/or valve outlet and, where

38、 applicable, the provision for other optional components 3.9 excess flow device flow limiter device designed to close or partially close when the flow of liquid or vapour passing through it exceeds a predetermined value and to re-open when the pressure differential across the valve has been restored

39、 below a certain value 3.10 non-return valve valve designed to close automatically to restrict reverse flow 3.11 vapour/liquid dual valve valve designed to allow vapour and liquid withdrawal from a cylinder in its normal operating position 3.12 sealing element element used to provide internal leak t

40、ightness 3.13 valve stem section of the valve body which connects to the cylinder 3.14 valve outlet section of the valve body to which a regulator or connector can be fitted for vapour or liquid withdrawal NOTE The valve outlet is also normally used for filling the cylinder. BS EN ISO 14245:2010ISO

41、14245:2006(E) ISO 2006 All rights reserved 33.15 type test test or series of tests conducted to prove that the design meets the requirements of this International Standard 3.16 cylinder opening part of the cylinder to which the valve stem connects 3.17 quick coupling connector system which enables a

42、n appliance or equipment to be connected to a cylinder valve without the use of tools 3.18 test pressure pressure at which the valve or component is tested in bar gauge 3.19 sediment tube device designed to reduce the risk of foreign matter, which can be in the cylinder, from entering the valve 3.20

43、 protection cap/dust cap device fitted to the valve outlet and intended for one or more of the following functions: to protect the outlet; to prevent the ingress of foreign matter; to indicate unauthorized manipulation 3.21 sealing cap device fitted to, or integral with, the outlet of the cylinder v

44、alve to provide secondary closure 3.22 valve operating mechanism mechanism that opens the valve when, or after, a regulator or connector is fitted and closes automatically when, or before, a regulator or connector is disconnected 3.23 sealing mechanism mechanism to obtain internal leak tightness 3.2

45、4 protection cap device that may be screwed to a fitting permanently attached to the cylinder to protect a cylinder valve 3.25 shroud/guard device that may be welded to the cylinder to protect a cylinder valve 3.26 gross mass mass of the heaviest cylinder on which the valve is intended to be fitted,

46、 including any permanently attached accessories and the maximum mass of the LPG content BS EN ISO 14245:2010ISO 14245:2006(E) 4 ISO 2006 All rights reserved3.27 pressure relief valve valve which automatically, without the assistance of any energy other than that of the fluid concerned, discharges a

47、quantity of fluid so as to prevent a predetermined safe pressure being exceeded, and which is designed to re-close and prevent the further flow of fluid after normal pressure conditions of service have been restored NOTE The loading due to the fluid pressure underneath the valve-sealing element is o

48、pposed by a spring. 4 Design and specification 4.1 General The valve shall be capable of withstanding: operating pressures and test pressures; mechanical stresses, including dynamic loads such as pressure shocks or cyclic changes; operating temperatures. NOTE Pressures are gauge pressure unless othe

49、rwise specified. There shall be valve external and internal leak tightness for the full range of pressure and temperature conditions. The specific requirements relating to the functions, mechanical strength, pressure, operating temperatures, external and internal leak tightness of the valve and its components are detailed in the following subclauses of this clause and/or in the relevant test in Clause 5. 4.2 Materials 4.2.1 General Materials in contact with LPG shall be physically and chemically com