1、BRITISH STANDARDBS EN14817:2006Railway applications Suspension components Air-spring control elementsThe European Standard EN 14817:2006 has the status of a British StandardICS 45.040g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3
2、g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58BS EN 14817:2006This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 May 2006 BSI 2006ISBN 0 580 48293 6National forewordThis British Standard is the official En
3、glish language version of EN 14817:2006.The UK participation in its preparation was entrusted by Technical Committee RAE/3, Railway rolling stock materials, to Subcommittee RAE/3/-/4, Suspension components, which has the responsibility to: A list of organizations represented on this subcommittee can
4、 be obtained on request to its secretary.Cross-referencesThe British Standards which implement international or European publications referred to in this document may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” fac
5、ility of the BSI Electronic Catalogue or of British Standards Online.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 does not of itself confer immunity from legal obligation
6、s. aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep UK interests informed; monitor related international and European developments and promulgate them in the UK.Summary of pagesThi
7、s document comprises a front cover, an inside front cover, the EN title page, pages 2 to 28, an inside back cover and a back cover.The BSI copyright notice displayed in this document indicates when the document was last issued.Amendments issued since publicationAmd. No. Date CommentsEUROPEAN STANDAR
8、DNORME EUROPENNEEUROPISCHE NORMEN 14817April 2006ICS 45.040English VersionRailway applications - Suspension components - Air springcontrol elementsApplications ferroviaires - Pices de suspension - Elmentsde commande de ressort pneumatiqueBahnanwendungen - Federungselemente -LuftfedersteuergliederThi
9、s European Standard was approved by CEN on 9 January 2006.CEN members are bound to comply with 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 reference
10、s concerning such nationalstandards may be obtained on application to the Central Secretariat 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
11、own language and notified to the Central Secretariat has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembou
12、rg, Malta, Netherlands, Norway, Poland, Portugal, Romania,Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGManagement Centre: rue de Stassart, 36 B-1050 Brussels 2006 CEN All rights of
13、exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 14817:2006: EEN 14817:2006 (E) 2 Contents Page Foreword4 Introduction .5 1 Scope 6 2 Normative references 7 3 Terms, definitions, symbols and abbreviations .7 3.1 Terms and definitions .7 3.2 Symbols and
14、 abbreviations 8 4 Documentation.9 4.1 Introduction9 4.2 Documents to be provided by the customer 9 4.3 Documents to be provided by the supplier.9 5 Graphical symbols.10 6 Working conditions .11 6.1 General11 6.2 Climatic and atmospheric condition12 6.3 Environmental conditions.12 6.4 Operation 12 6
15、.5 Mechanical conditions 12 7 Product definition 12 7.1 General12 7.2 Resistance to operating conditions.14 7.2.1 Extreme temperatures.14 7.2.2 Water penetration 15 7.2.3 Penetration of external solid bodies15 7.2.4 Mechanical impacts.16 7.2.5 Projection of ballast 17 7.2.6 Corrosion17 7.2.7 Reactio
16、n to fire.17 7.2.8 Other conditions 17 7.3 Physical characteristics17 7.3.1 Material .17 7.3.2 Mass 17 7.3.3 Appearance 18 7.3.4 Air-tightness.18 7.3.5 Fatigue behaviour18 7.4 Geometrical and dimensional characteristics 18 7.5 Functional characteristics 18 7.5.1 General18 7.5.2 Air flow18 7.5.3 Pres
17、sure drop.19 7.5.4 Filtering performance19 7.5.5 Operating pressure19 8 Verification and test methods 19 8.1 General19 8.1.1 Test conditions 19 8.1.2 Test installation19 8.1.3 Definition and preparation of test pieces20 EN 14817:2006 (E) 3 8.2 Verification of resistance to the operating conditions 2
18、0 8.2.1 Extreme temperatures.20 8.2.2 Water penetration 20 8.2.3 Penetration of external solid bodies .21 8.2.4 Mechanical impacts.21 8.2.5 Projection of ballast 23 8.2.6 Corrosion23 8.2.7 Reaction to fire 23 8.2.8 Other conditions23 8.3 Verification of physical characteristics.23 8.3.1 Material .23
19、 8.3.2 Mass23 8.3.3 Appearance 23 8.3.4 Air-tightness 23 8.3.5 Fatigue behaviour23 8.4 Verification of geometrical and dimensional characteristics .23 8.5 Verification of functional characteristics24 8.5.1 General .24 8.5.2 Air flow24 8.5.3 Pressure drop 24 8.5.4 Filtering performance24 8.5.5 Operat
20、ing pressure .24 9 Marking.24 Annex A (informative) Traceability, qualification and quality surveillance 26 A.1 Traceability.26 A.2 Qualification of the suppliers production factory .26 A.3 Product approval and qualification .26 A.3.1 Approval .26 A.3.2 Qualification.26 A.4 Inspection and quality su
21、rveillance.27 Bibliography28 EN 14817:2006 (E) 4 Foreword This European Standard (EN 14817:2006) has been prepared by Technical Committee CEN/TC 256 “Railway applications”, the secretariat of which is held by DIN. This European Standard shall be given the status of a national standard, either by pub
22、lication of an identical text or by endorsement, at the latest by October 2006, and conflicting national standards shall be withdrawn at the latest by October 2006. This European Standard has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Associatio
23、n. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Luxembourg, Malta, Nethe
24、rlands, Norway, Portugal, Romania, Slovakia, Spain, Sweden, Switzerland and the United Kingdom. EN 14817:2006 (E) 5 Introduction Designing an air spring control element initially requires knowledge of the mechanical system into which it is integrated. From this come the performance requirements spec
25、ific to each case that only the customer is able to specify. The requirements of the standard should be applied jointly to the supply conditions for the air spring control elements. This standard puts into concrete form the studies and work carried out to improve the performance and quality of the a
26、ir spring control elements in order to meet the requirements of modern rail transport equipment. This standard is intended for the users of rail networks, manufacturers and suppliers of rail equipment and suppliers of air brake control elements. EN 14817:2006 (E) 6 1 Scope This standard specifies: t
27、he characteristics the air brake control elements shall have and the tests to be carried out; the guidelines for drafting the approval procedure applied by the customer; the guidelines for drafting the qualification procedure for the product based on the requirements specified; the guidelines for dr
28、afting the quality surveillance provisions for the manufacture of the air spring control elements. The requirements of this standard are applicable to air spring control elements having to equip rail vehicles operating on a reserved track under permanent guidance without any distinction between the
29、nature or the route of the track. It covers complete control elements. It is essential that the various components are defined by particular specifications. This standard specifies: the differential valves; the filters; the levelling valves; the non-return valves; the minimum pressure valves; the pr
30、essure-reducing valves; the end stop valves; the isolating valves. This standard does not take into account the other air suspension control elements such as the installation of pipes, pipework elements and air production elements. EN 14817:2006 (E) 7 2 Normative references The following referenced
31、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 (including any amendments) applies. EN 50102, Degrees of protection provided by enclosures for electrical equi
32、pment against external mechanical impacts (IK code) EN 60529, Degrees of protection provided by enclosures (IP code) (IEC 60529:1989) ISO 31-1, Quantities and units Part 1: Space and time ISO 31-3, Quantities and units Part 3: Mechanics ISO 1219-1, Fluid power systems and components Graphic symbols
33、and circuit diagrams Part 1: Graphic symbols ISO 8573-1, Compressed air for general use Part 1: Contaminants and quality classes ISO 9227, Corrosion tests in artificial atmospheres Salt spray tests ISO 10209-1, Technical product documentation Vocabulary - Part 1: Terms relating to technical drawings
34、 - General and types of drawings 3 Terms, definitions, symbols and abbreviations 3.1 Terms and definitions For the purposes of this European Standard, the following terms and definitions apply. 3.1.1 differential valve appliance whose basic function is to permit a flow of air between two air springs
35、 of the same bogie when their pressure differential is greater than a specified threshold 3.1.2 filter appliance whose basic function is to catch the pollutants in the compressed air 3.1.3 levelling valve appliance whose basic function is to maintain the height of an air spring at a predetermined co
36、nstant value whatever the static load applied whilst admitting or discharging air 3.1.4 end stop valve appliance whose basic function is to limit the height of an air spring to a predetermined value by purging it rapidly into the atmosphere 3.1.5 minimum pressure valve appliance whose basic function
37、 is to admit an air flow in one single direction above a given pressure EN 14817:2006 (E) 8 3.1.6 non-return valve appliance whose basic function is to admit an air flow in one single direction 3.1.7 pressure drop difference between the inlet pressure and outlet pressure of a control element at a gi
38、ven moment 3.1.8 pressure reducing valve appliance that supplies a relatively constant outlet pressure regardless of the inlet pressure and outlet air flow NOTE It is essential that the inlet pressure, however, remains higher than the regulated outlet pressure. 3.1.9 isolating valve appliance whose
39、basic function is to permit air to flow or not whatever the direction 3.1.10 isolating valve with vent hole appliance whose basic function is to permit air to flow in whatever direction or to oppose it by venting one part of the air circuit 3.2 Symbols and abbreviations For the purposes of this Euro
40、pean Standard, the following symbols and abbreviations apply. Most of the symbols used in this standard and defined in this subclause conform to ISO 31-1 and ISO 31-3. Decimal multiples and sub-multiples of the units defined in Table 1 may be used. Table 1 Symbols and abbreviations Symbol Abbreviati
41、on Unit Explanation p Pa Absolute pressure. The value zero corresponds to an absolute vacuum. p1 Pa Inlet pressure. p2 Pa Outlet pressure. pamb Pa Ambient pressure outside the control element. Unless otherwise specified, pamb = pat. pat Pa Normal atmospheric pressure, with pat = 101325 Pa (1 bar) pe
42、 Pa Effective pressure. Pressure equal to the algebraic difference between the absolute pressure inside the element (p) and the ambient pressure (pamb). pe = p - pamb pmw Pa Maximum working pressure. Maximum absolute pressure to which the control element is subjected in service for a given applicati
43、on. pop Pa Operating pressure. T C Ambient temperature outside the control element. TEmax C Upper limit of range of exceptional operating temperatures. TEmin C Lower limit of range of exceptional operating temperatures. EN 14817:2006 (E) 10 5 Graphical symbols The control elements shall be represent
44、ed in the diagrams by the symbols given in Table 2. Table 2 Graphical symbols Element Graphical symbol Differential valve Filter Levelling valve Non-return valve Pressure reducing valve EN 14817:2006 (E) 11 Minimum pressure valve End stop valve Isolating valve Isolating valve with vent hole 1) The c
45、ontrol mode shall be represented in accordance with the rules in ISO 1219-1 6 Working conditions 6.1 General The control element shall ensure all the functions in the working and environmental conditions to which it is subjected in operation. These conditions shall be defined in the technical specif
46、ication for the control element. EN 14817:2006 (E) 12 6.2 Climatic and atmospheric condition The variation in air temperature (ambient temperature) taken into account is generally between “- 25 C and + 50 C“. However, a different range of temperatures may be used if the operating or geographic condi
47、tions are exceptional. 6.3 Environmental conditions Depending on its location on the vehicle and its operating conditions, the control element may be exposed to attacks from various sources: chemical products (cleaning products, for example); organic waste; oil; ballast; etc. 6.4 Operation The contr
48、ol element shall ensure without incident that all functions are operational when it is subjected to the maximum air circuit pressure in the specified operating conditions. The maximum working pressure (pmw) shall be defined in the technical specification. The vehicle air circuits may contain polluta
49、nts (dust, water, oil), The air quality shall be defined in the technical specification in accordance with ISO 8573-1. NOTE For the tests, the air quality is defined in 8.1.2. 6.5 Mechanical conditions Depending on its location on the vehicle and its operating conditions, the control element may be exposed to mechanical stresses (vibration, impact, etc.). 7 Product definition 7.1 General The customer shall define in the technical specification all the necessary characteristics for defining the control element as a
