BS EN 14129-2014 LPG Equipment and accessories Pressure relief valves for LPG pressure vessels《LPG设备和附件 液化石油气压力容器的泄压阀》.pdf
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1、BSI Standards PublicationBS EN 14129:2014LPG Equipment and accessories Pressure relief valves for LPGpressure vesselsBS EN 14129:2014 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN 14129:2014. Itsupersedes BS EN 14129:2004 which is withdrawn.The UK participatio
2、n in its preparation was entrusted to TechnicalCommittee PVE/19, LPG containers and their associated fittings.A list of organizations 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
3、 are responsible for its correctapplication. The British Standards Institution 2014. Published by BSI StandardsLimited 2014ISBN 978 0 580 75822 5ICS 23.060.40Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of the
4、Standards Policy and Strategy Committee on 28 February 2014.Amendments issued since publicationDate Text affectedBS EN 14129:2014EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 14129 February 2014 ICS 23.060.40 Supersedes EN 14129:2004English Version LPG Equipment and accessories - Pressure rel
5、ief valves for LPG pressure vessels quipements pour GPL et leurs accessoires - Soupapes de scurit pour rservoirs de GPL sous pression Flssiggas-Gerte und Ausrstungsteile - Sicherheitsventile fr Druckbehlter fr Flssiggas (LPG) This European Standard was approved by CEN on 30 November 2013. CEN member
6、s 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
7、 to the CEN-CENELEC 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-CENELEC Managemen
8、t Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Li
9、thuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17,
10、 B-1000 Brussels 2014 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 14129:2014 EBS EN 14129:2014EN 14129:2014 (E) 2 Contents Page Foreword 4 Introduction .5 1 Scope 6 2 Normative references 6 3 Terms and definitions .7 4 Operatin
11、g conditions 10 5 Materials 10 5.1 General . 10 5.2 Metallic materials 10 5.3 Non-metallic components 11 5.4 Lubricants, sealants, and adhesives 11 5.5 Certification . 11 6 Design 12 6.1 General . 12 6.2 Design parameters 13 6.3 Threads 14 6.4 Springs . 14 6.5 Additional requirements 14 6.6 Pressure
12、 relief valve with parallel thread . 15 6.7 Pressure relief valve for use with a changeover manifold . 15 6.8 Pilot operated pressure relief valve 15 7 Testing of the design 16 7.1 General . 16 7.2 Test requirements . 17 7.3 Dimensional checks . 19 7.4 Hydraulic proof test 19 7.5 Overtorquing test 1
13、9 7.6 Start to discharge pressure test 19 7.7 Discharge capacity test 20 7.8 Leak tightness tests . 20 7.9 Ageing test 20 7.10 Endurance test 21 7.11 Stress cracking test 21 7.11.1 General . 21 7.11.2 Mercurous nitrate immersion test . 21 7.11.3 Moist ammonia air stress cracking test . 21 7.12 Vacuu
14、m test . 21 7.13 Visual inspection 21 7.14 Test records 22 8 Marking 22 8.1 Pressure relief valves . 22 8.2 Thermal expansion valves . 22 8.3 Pilot operated pressure relief valve 23 9 Operating instructions . 23 BS EN 14129:2014EN 14129:2014 (E) 3 10 Packaging . 24 Annex A (informative) Terms used w
15、ith LPG pressure relief valves . 25 Annex B (normative) Special low temperature requirements for valves . 26 Annex C (normative) Ageing test . 27 C.1 General . 27 C.2 Ultraviolet light 27 C.3 Rain . 27 Annex D (informative) Environment checklist 30 Annex ZA (informative) Relationship between this Eu
16、ropean Standard and the Essential Requirements of EU Directive 97/23/EC 31 Bibliography 32 BS EN 14129:2014EN 14129:2014 (E) 4 Foreword This document (EN 14129:2014) has been prepared by Technical Committee CEN/TC 286 “Liquefied petroleum gas equipment and accessories”, the secretariat of which is h
17、eld 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 August 2014, and conflicting national standards shall be withdrawn at the latest by August 2014. Attention is drawn to the possibility
18、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 14129:2004. This European Standard has been submitted for reference into: the RID 9; and the tec
19、hnical annexes of the ADR 10. NOTE These regulations take precedence over any clause of this European Standard. It is emphasised that RID/ADR/ADN are being revised regularly at intervals of two years which may lead to temporary non-compliances with the clauses of this European Standard. The major ch
20、anges to this revision include the addition of: pilot operated pressure relief valve; an ageing test, see 7.9 and Annex C; an endurance test, see 7.10; and a stress cracking test, see 7.11. This document has been prepared under a mandate given to CEN by the European Commission and the European Free
21、Trade Association, and supports essential requirements of EU Directive(s). For relationship with EU Directive(s), see informative Annex ZA, which is an integral part of this document. According to the CEN-CENELEC Internal Regulations, the national standards organizations of the following countries a
22、re bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, P
23、ortugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. BS EN 14129:2014EN 14129:2014 (E) 5 Introduction This European Standard calls for the use of substances and procedures that may be injurious to health and/or the environment if adequate precautions are n
24、ot taken. It refers only to technical suitability: it does not absolve the user from their legal obligations at any stage. Protection of the environment is a key political issue in Europe and elsewhere around the world. Protection of the environment in this document is understood in a very broad sen
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