1、BRITISH STANDARDBS EN 14601:2005Railway applications Straight and angled end cocks for brake pipe and main reservoir pipeICS 45.060.01g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g
2、50g51g60g53g44g42g43g55g3g47g36g58+A1:2010National forewordThis British Standard is the UK implementation of EN 14601:2005+A1:2010. It supersedes BS EN 14601:2005, which is withdrawn.The start and finish of text introduced or altered by amendment is indicated in the text by tags. Tags indicating cha
3、nges to CEN text carry the number of the CEN amendment. For example, text altered by CEN amendment A1 is indicated by !“.The UK participation in its preparation was entrusted to Technical Committee RAE/4, Braking.A list of organizations represented on this committee can be obtained on request to its
4、 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 legal obligations.BS EN 14601:2005+A1:2010This British Standard was published under the
5、 authority of the Standards Policy and Strategy Committee on 27 September 2005 BSI 2011Amendments/corrigenda issued since publicationDate Comments 31 January 2011 Implementation of CEN amendment A1:2010ISBN 978 0 580 70059 0EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 14601:2005+A1 October 2
6、010 ICS 45.060.01 Supersedes EN 14601:2005English Version Railway applications - Straight and angled end cocks for brake pipe and main reservoir pipe Applications ferroviaires - Robinets darrt droit ou coud pour conduite gnrale de frein et conduite principale Bahnanwendungen - Gerade und abgewinkelt
7、e Luftabsperrhhne fr die Hauptluftleitung und Hauptbehlterleitung This European Standard was approved by CEN on 24 March 2005 and includes Amendment 1 approved by CEN on 30 August 2010. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for givin
8、g 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 to the CEN Management Centre or to any CEN member. This European Standard exists in three official vers
9、ions (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 Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium
10、, Bulgaria, Croatia, 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 COMMITT
11、EE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION 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 14601:2005+A1:2010: E2 Contents Page For
12、eword . 41 Scope 52 Normative references . 53 Terms and definitions . 54 Requirements 94.1 General . 94.2 Operating conditions 94.3 Functional characteristics 94.3.1 General . 94.3.2 Open and closed positions 104.3.3 Lubrication . 104.3.4 Venting port . 104.3.5 Torque 104.3.6 Spindle handle of the e
13、nd cock . 104.3.7 Fall time 114.3.8 Leakage 114.3.9 Vacuum withstanding . 114.3.10 Pneumatic shocks . 114.4 Constructional characteristics 114.4.1 External appearance . 114.4.2 Connections 114.4.3 Space envelope . 114.4.4 Mechanical shocks . 114.4.5 Resistance to torque . 124.4.6 Life expectancy . 1
14、25 Type test methods 125.1 Sampling for type test 125.2 Test requirements . 125.3 Test procedure 125.3.1 Principle . 125.3.2 Check of physical and geometrical characteristics 135.3.3 Measurement of the operating torque 145.3.4 Measurement of the pressure fall time . 145.3.5 Hydraulic test (water pre
15、ssure) of the end cock body at given pressure . 165.3.6 Operating test under air flow condition 165.3.7 Pneumatic test of the isolating device at given pressures and temperatures . 175.3.8 Endurance at ambient temperature with reduced air flow 185.3.9 Measurement of the operating torque drift 195.3.
16、10 Vibration test . 205.3.11 Resistance to shock test 205.3.12 Vacuum test . 205.3.13 Corrosion test 215.3.14 Resistance to torque: . 225.3.15 Examination . 235.4 Approval validity . 235.5 Type test report . 236 Homologation 236.1 General . 236.1.1 Procedure 23BS EN 14601:2005+A1:2010EN 14601:2005+A
17、1:2010 (E)3 6.1.2 Pass/fail criteria . 246.2 Homologation test report . 247 Routine tests . 248 Designation 249 Marking 24Annex A (normative) Dimensions of end cocks 26Annex ZA (informative) !Relationship between this European Standard and the Essential Requirements of EU Directive 2008/57/EC of the
18、 European Parliament and of the Council of 17 June 2008 on the interoperability of the rail system within the Community (Recast)“ . 30!deleted text“ Bibliography . 36BS EN 14601:2005+A1:2010EN 14601:2005+A1:2010 (E)4 Foreword This document (EN 14601:2005+A1:2010) has been prepared by Technical Commi
19、ttee 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 publication of an identical text or by endorsement, at the latest by April 2011, and conflicting national standards shall be withdrawn a
20、t the latest by April 2011. Attention is drawn to the possibility 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 includes Amendment 1, approved by CEN on 201
21、0-08-30. This document supersedes EN 14601:2005. The start and finish of text introduced or altered by amendment is indicated in the text by tags ! “. !This document has been prepared under a mandate given to CEN/CENELEC/ETSI by the European Commission and the European Free Trade Association, and su
22、pports essential requirements of EU Directive 2008/57/EC. For relationship with EU Directive 2008/57/EC, 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 are bound
23、 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, Portugal, Romania, Slovakia, Slovenia, Spain, Sw
24、eden, Switzerland and United Kingdom. BS EN 14601:2005+A1:2010EN 14601:2005+A1:2010 (E)5 1 Scope This European Standard is applicable to manually operated end cocks designed to cut-off the brake pipe and the main reservoir pipe of the air brake and compressed air system of rail vehicles; without tak
25、ing the type of vehicles and track-gauge into consideration. This European Standard specifies requirements for the design, dimensions, testing and certification (qualification and/or homologation), and marking. 2 Normative references The following referenced documents are indispensable for the appli
26、cation 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 50125-1, Railway applications Environmental conditions for equipment Part 1: Equipment on board rolling stock EN
27、 61373, Railway applications Rolling stock equipment Shock and vibration tests (IEC 61373:1999) EN ISO 228-2, Pipe threads where pressure-tight joints are not made on the threads Part 2: Verification by means of limit gauges (ISO 228-2:1987) ISO 5208:1993, Industrial valves Pressure testing of valve
28、s ISO 8573-1:2001, Compressed air Part 1: Contaminants and purity classes ISO 9227:1990, Corrosion tests in artificial atmospheres Salt spray tests 3 Terms and definitions For the purposes of this document, the following terms and definitions shall apply. 3.1 end cock two position, three way cock, w
29、ith no piped vent and, with a rotary spindle moved by the operating handle 3.2 Components 3.2.1 port terminus of a fluid passage in a component (to which may be connected pipelines) for the transmission of fluid to, or from the component 3.2.1.1 venting port port which provides passage to atmosphere
30、 3.2.1.2 outlet port port which is vented to atmosphere when the cock is closed BS EN 14601:2005+A1:2010EN 14601:2005+A1:2010 (E)6 3.2.1.3 inlet port port which is not vented when the cock is closed 3.2.1.4 threaded port port arranged to accept screw threaded connection 3.2.2 direction of rotation d
31、irection of rotation quoted as viewed looking at the handle side NOTE In case of doubt a sketch should be provided. 3.2.3 mechanical detent spring arrangement to retain moving parts in open or closed position and only able to be moved to another position with the specified force 3.2.4 latch mechanic
32、al device to retain moving parts in open or closed position which can only be moved when the latch is released 3.3 Types of end cocks 3.3.1 Design 3.3.1.1 straight end cock cock with axis of inlet and outlet ports in line NOTE See Figure 1. Figure 1 Straight end cock 3.3.1.2 angled end cock cock wit
33、h axis of outlet port at an angle of (35 2) with axis of inlet port NOTE See Figure 2. BS EN 14601:2005+A1:2010EN 14601:2005+A1:2010 (E)7 Figure 2 Angled end cock 3.3.2 Location of the handle 3.3.2.1 right hand end cock handle located at the right hand side of the end cock with the handle closed in
34、a vertically upwards position NOTE 1 The end cock is opened by rotating the handle in an anticlockwise direction (see Figure 3). NOTE 2 Standard mounting position. Other positions of handle are defined by drawing (see Figure 3). Key 1 Closed position 2 Open position 3 Outlet port 4 Inlet port Figure
35、 3 Right hand end cock 3.3.2.2 left hand end cock handle located at the left hand side of the cock with the handle closed is in a vertically upwards position NOTE 1 The cock is opened by rotating the handle in a clockwise direction (see Figure 4). NOTE 2 Standard mounting position. Other positions o
36、f handle are defined by drawing (see Figure 4). BS EN 14601:2005+A1:2010EN 14601:2005+A1:2010 (E)8 Key 1 Closed position 2 Open position 3 Outlet port 4 Inlet port Figure 4 Left hand end cock 3.4 States 3.4.1 closed position position of the valve component part in which the flow path between inlet a
37、nd outlet ports is closed and the venting passage is open and connected to the hose and coupling side of the cock NOTE 1 The cock handle is closed in the vertically upwards position on the vehicle. NOTE 2 The purchaser will define the angle between the cock inlet port axis and the vertically upwards
38、 handle position for cocks not mounted horizontally. 3.4.2 open position position of the valve member in which the flow path between inlet and outlet ports is fully open, and the venting passage is closed 3.4.3 fall time time taken in a device for a quantity of air to fall from a specified high pres
39、sure level down to a specified lower pressure level NOTE Parameter used to define the fluid characteristic of the cock. 3.4.4 proof pressure test pressure, in excess of a maximum rated pressure, which causes no malfunction or permanent deformation damage 3.5 temperature range range of the temperatur
40、e within which the apparatus can operate satisfactorily 3.6 Leakage 3.6.1 external leakage leakage of the fluid contained in the end cock to atmosphere BS EN 14601:2005+A1:2010EN 14601:2005+A1:2010 (E)9 3.6.2 internal leakage leakage of the fluid contained in the end cock from one side to the other
41、side with the valve component part in the closed position 3.7 drift change or variation of a condition with time under steady state operating conditions 3.8 life expectancy predicted working period during which a component or system will maintain a specified level of performance under specified cond
42、itions NOTE Sometimes expressed in statistical term as a probability. 4 Requirements 4.1 General Workmanship and quality shall be ensured by the manufacturer, therefore quality assurance is the responsibility of the manufacturer under the agreement with the purchaser. Warranty of the part is also th
43、e responsibility of the manufacturer in accordance with the agreement with the purchaser. 4.2 Operating conditions The end cock shall be able to function under the following conditions: a) Where the air quality of the compressed air specified in ISO 8573-1:2001, class 4-4-5. This requirement is veri
44、fied when tests are carried out in accordance with 5.2. b) In the temperature range for the environmental conditions to which the rail vehicle is submitted during its operation and at least for a temperature range defined by the class T2 of EN 50125-1. The purchaser can specify a higher temperature
45、value if operational constraints demand it. This requirement is tested in accordance with 5.3.3, 5.3.7 and 5.3.12. c) The end cock shall withstand the external corrosion due to normal atmospheric pollutants as specified in EN 50125-1. The end cock is tested in accordance with the test shown in 5.3.1
46、3. d) In the vibrational environment of the rail vehicle on which it is mounted and it shall remain in either the open or closed position. The cock shall be tested in accordance with 5.3.10. 4.3 Functional characteristics 4.3.1 General The operating handle of the end cock shall be equipped with a de
47、tent or latch system. The requirements given in 4.3.2 to 4.3.10 are defined to ensure the air flow through the brake pipe and main reservoir pipe and ensure no malfunction of the cock after the brake pipe test (as part of the brake test before the trains start). BS EN 14601:2005+A1:2010EN 14601:2005
48、+A1:2010 (E)10 4.3.2 Open and closed positions The handle position shall be the same on any vehicle, so the opening and closing of the cock shall be achieved by turning its spindle through a minimum of 90 and not more than 100. Stops shall be provided at the extremes of rotation, so that the open an
49、d closed positions are achieved positively. The open and closed positions are defined in 3.4.1 and 3.4.2. 4.3.3 Lubrication It shall be possible to operate the end cock at all pressures without additional lubrication. 4.3.4 Venting port The end cock shall incorporate a venting port with a minimum area of 80 mm2, arranged so that
