SIST EN 14817:2006
(Main)Railway applications - Suspension components - Air spring control elements
Railway applications - Suspension components - Air spring control elements
This standard specifies:
- the 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 drafting 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 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 pressure-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.
Bahnanwendungen - Federungselemente - Luftfedersteuerglieder
Diese Europäische Norm legt folgende Anforderungen fest:
- die Eigenschaften von Luftfedersteuergliedern und die Prüfungen, die durchgeführt werden sollten;
- das Abnahmeverfahren, das vom Kunden angewandt wird;
- das Qualifikationsverfahren für das Produkt auf der Grundlage der festgelegten Anforderungen;
- die Vorkehrungen hinsichtlich der Qualitätsüberwachung für die Herstellung der Luftfedersteuerglieder;
Die Anforderungen dieser Europäischen Norm gelten für Luftfedersteuerglieder für die Ausrüstung von Schienenfahrzeugen, die auf einem gesonderten Gleis unter ständiger Überwachung ohne Unterscheidung der Art oder des Verlaufs der Strecke verkehren.
Sie behandelt vollständige Steuerglieder. Es ist notwendig, dass die einzelnen Bestandteile durch gesonderte Spezifikationen beschrieben werden.
Diese Europäische Norm legt fest:
- Ausgleichsventile;
- Filter;
- Niveauregulierventile (Luftfederventile);
- Rückschlagventile;
- Überdruckventil;
- Druckminderventile;
- End-Absperrventile;
- Absperrventile.
Diese Europäische Norm berücksichtigt nicht die anderen Luftfedersteuerglieder wie z. B. Leitungen, Leitungsteile, Kompressoren sowie deren Installation.
Applications ferroviaires - Pieces de suspension - Eléments de commande de ressort pneumatique
Železniške naprave – Vzmetenje – Kontrolni elementi pri zračnih vzmeteh
General Information
Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.]PHWHKBahnanwendungen - Federungselemente - LuftfedersteuergliederApplications ferroviaires - Pieces de suspension - Eléments de commande de ressort pneumatiqueRailway applications - Suspension components - Air spring control elements45.040Materiali in deli za železniško tehnikoMaterials and components for railway engineering21.160VzmetiSpringsICS:Ta slovenski standard je istoveten z:EN 14817:2006SIST EN 14817:2006en01-oktober-2006SIST EN 14817:2006SLOVENSKI
STANDARD
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 14817April 2006ICS 45.040 English VersionRailway applications - Suspension components - Air springcontrol elementsApplications ferroviaires - Pièces de suspension - Elémentsde commande de ressort pneumatiqueBahnanwendungen - Federungselemente -LuftfedersteuergliederThis 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 references 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 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, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania,Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2006 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 14817:2006: ESIST EN 14817:2006
Traceability, qualification and quality surveillance.26 A.1 Traceability.26 A.2 Qualification of the supplier's 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 surveillance.27 Bibliography.28
From this come the performance requirements specific 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 air 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. SIST EN 14817:2006
It is essential that the various components are defined by particular specifications. This standard specifies: ¾ the differential valves; ¾ the filters; ¾ the levelling valves; ¾ the non-return valves;
¾ the minimum pressure valves; ¾ the pressure-reducing valves; ¾ the end stop valves; ¾ 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.
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 equipment 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 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 - 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 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 constant 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 is to admit an air flow in one single direction above a given pressure
3.1.7 pressure drop difference between the inlet pressure and outlet pressure of a control element at a given 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 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 European 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 Abbreviation 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 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
application. 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. SIST EN 14817:2006
Filter
Levelling valve
Non-return valve
Pressure reducing valve
End stop valve
Isolating valve
Isolating valve with vent hole
1) The control 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 specification for the control element. SIST EN 14817:2006
+ 50 °C". However, a different range of temperatures may be used if the operating or geographic conditions 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: ¾ chemical products (cleaning products, for example); ¾ organic waste; ¾
oil; ¾ ballast; ¾ etc. 6.4 Operation The control 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 technic
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