1、BRITISH STANDARDBS EN 14601:2005Railway applications Straight and angled end cocks for brake pipe and main reservoir pipeThe European Standard EN 14601:2005 has the status of a British StandardICS 45.060.01g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g4
2、9g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58Licensed Copy: Wang Bin, na, Thu Dec 01 00:51:12 GMT 2005, Uncontrolled Copy, (c) BSIBS EN 14601:2005This British Standard was published under the authority of the Standards Policy and Strategy
3、Committee on 27 September 2005 BSI 27 September 2005ISBN 0 580 46107 6National forewordThis British Standard is the official English language version of EN 14601:2005.The UK participation in its preparation was entrusted to Technical Committee RAE/4, Braking, which has the responsibility to:A list o
4、f organizations represented on this committee can 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 Co
5、rrespondence Index”, or by using the “Search” facility 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
6、 of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developmen
7、ts and promulgate them in the UK.Summary of pagesThis document comprises a front cover, an inside front cover, the EN title page, pages 2 to 33 and a back cover.The BSI copyright notice displayed in this document indicates when the document was last issued.Amendments issued since publicationAmd. No.
8、 Date CommentsLicensed Copy: Wang Bin, na, Thu Dec 01 00:51:12 GMT 2005, Uncontrolled Copy, (c) BSIEUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN 14601May 2005ICS 45.060.01English versionRailway applications - Straight and angled end cocks for brakepipe and main reservoir pipeApplications ferrovi
9、aires - Robinets darrt droit ou coudpour conduite gnrale de frein et conduite principaleBahnanwendungen - Gerade und abgewinkelteAbsperrhhne fr die Bremsleitung undHauptluftbehlterleitungThis European Standard was approved by CEN on 24 March 2005.CEN members are bound to comply with the CEN/CENELEC
10、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 mem
11、ber.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 ar
12、e 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, Slovakia,Slovenia, Spain, Sweden, Switzerland and United King
13、dom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGManagement Centre: rue de Stassart, 36 B-1050 Brussels 2005 CEN All rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 14601:2005: ELicensed C
14、opy: Wang Bin, na, Thu Dec 01 00:51:12 GMT 2005, Uncontrolled Copy, (c) BSIEN 14601:2005 (E) 2ContentsPage Foreword 41 Scope. 52 Normative references. 53 Terms and definitions 54 Requirements 94.1 General 94.2 Operating conditions 94.3 Functional characteristics . 104.3.1 General 104.3.2 Open and cl
15、osed positions 104.3.3 Lubrication 104.3.4 Venting port 104.3.5 Torque . 104.3.6 Spindle handle of the end 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 S
16、pace envelope 114.4.4 Mechanical shocks. 124.4.5 Resistance to torque 124.4.6 Life expectancy. 125 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 opera
17、ting torque. 145.3.4 Measurement of the pressure fall time . 145.3.5 Hydraulic test (water pressure) of the end cock body at given pressure 165.3.6 Operating test under air flow condition 175.3.7 Pneumatic test of the isolating device at given pressures and temperatures. 175.3.8 Endurance at ambient
18、 temperature with reduced air flow 195.3.9 Measurement of the operating torque drift. 205.3.10 Vibration test. 205.3.11 Resistance to shock test 205.3.12 Vacuum test 215.3.13 Corrosion test. 225.3.14 Resistance to torque:. 225.3.15 Examination 245.4 Approval validity. 245.5 Type test report 246 Homo
19、logation . 246.1 General 246.1.1 Procedure 246.1.2 Pass/fail criteria 256.2 Homologation test report. 257 Routine tests. 25Licensed Copy: Wang Bin, na, Thu Dec 01 00:51:12 GMT 2005, Uncontrolled Copy, (c) BSIEN 14601:2005 (E) 38 Designation. 259 Marking 26Annex A (normative) Dimensions of end cocks.
20、 27Annex ZA (informative) Relationship between this European Standard and the Essential Requirements of EU Directive 96/48 . 31ANNEX ZB (informative) Relationship between this European Standard and the Essential Requirements of EU Directive 2001/16 32Bibliography 33Licensed Copy: Wang Bin, na, Thu D
21、ec 01 00:51:12 GMT 2005, Uncontrolled Copy, (c) BSIEN 14601:2005 (E) 4Foreword This document (EN 14601:2005) 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, e
22、ither by publication of an identical text or by endorsement, at the latest by November 2005, and conflicting national standards shall be withdrawn at the latest by November 2005. This European Standard has been prepared under a mandate given to CEN/CENELEC/ETSI by the European Commission and the Eur
23、opean Free Trade Association, and supports essential requirements of EU Directives 96/48 and 2001/16. For relationship with EU Directive(s), see informative Annexes ZA and ZB, which are an integral part of this document. According to the CEN/CENELEC Internal Regulations, the national standards organ
24、izations of the following countries are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Sl
25、ovenia, Spain, Sweden, Switzerland and United Kingdom. Licensed Copy: Wang Bin, na, Thu Dec 01 00:51:12 GMT 2005, Uncontrolled Copy, (c) BSIEN 14601:2005 (E) 51 Scope This European Standard is applicable to manually operated end cocks designed to cut-off the brake pipe and the main reservoir pipe of
26、 the air brake and compressed air system of rail vehicles; without taking 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 referen
27、ces The following referenced 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 50125-1, Railway applications Environmenta
28、l conditions for equipment Part 1: Equipment on board rolling stockEN 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 22
29、8-2:1987)ISO 5208:1993, Industrial valves Pressure testing of valvesISO 8573-1:2001, Compressed air Part 1: Contaminants and purity classesISO 9227:1990, Corrosion tests in artificial atmospheres Salt spray tests3 Terms and definitions For the purpose of this European Standard, the following terms a
30、nd definitions shall apply. 3.1 end cock two position, three way cock, with no piped vent and, with a rotary spindle moved by the operating handle 3.2 Components3.2.1 portterminus of a fluid passage in a component (to which may be connected pipelines) for the transmission of fluid to, or from the co
31、mponent 3.2.1.1 venting port port which provides passage to atmosphere3.2.1.2 outlet port port which is vented to atmosphere when the cock is closed 3.2.1.3 inlet port port which is not vented when the cock is closed Licensed Copy: Wang Bin, na, Thu Dec 01 00:51:12 GMT 2005, Uncontrolled Copy, (c) B
32、SIEN 14601:2005 (E) 63.2.1.4 threaded port port arranged to accept screw threaded connection 3.2.2 direction of rotation direction 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 pa
33、rts in open or closed position and only able to be moved to another position with the specified force 3.2.4 latch mechanical 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 cocks3.3.1 Design3.3.1.1 straight end cock cock wi
34、th axis of inlet and outlet ports in line NOTE See Figure 1. Figure 1 Straight end cock Licensed Copy: Wang Bin, na, Thu Dec 01 00:51:12 GMT 2005, Uncontrolled Copy, (c) BSIEN 14601:2005 (E) 73.3.1.2 angled end cock cock with axis of outlet port at an angle of (35 2) with axis of inlet port NOTE See
35、 Figure 2. 35 2Figure 2 Angled end cock 3.3.2 Location of the handle3.3.2.1 right hand end cock handle located at the right hand side of the end cock with the handle closed in a vertically upwards position NOTE 1 The end cock is opened by rotating the handle in an anticlockwise direction (see Figure
36、 3). NOTE 2 Standard mounting position. Other positions of handle are defined by drawing (see Figure 3). 14332Key1 Closed position2 Open position 3 Outlet port4 Inlet portFigure 3 Right hand end cock Licensed Copy: Wang Bin, na, Thu Dec 01 00:51:12 GMT 2005, Uncontrolled Copy, (c) BSIEN 14601:2005 (
37、E) 83.3.2.2 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 of handle are define
38、d by drawing (see Figure 4). 33421Key1 Closed position 2 Open position 3Outlet port4 Inlet portFigure 4 Left hand end cock 3.4 States3.4.1 closed position position of the valve component part in which the flow path between inlet and outlet ports is closed and the venting passage is open and connecte
39、d 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 handle position for cocks not mounted horizontally. 3.4.2 open positi
40、on 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 pressure level down to a specified lower pressure level NOTE Parameter use
41、d to define the fluid characteristic of the cock. Licensed Copy: Wang Bin, na, Thu Dec 01 00:51:12 GMT 2005, Uncontrolled Copy, (c) BSIEN 14601:2005 (E) 93.4.4 proof pressure test pressure, in excess of a maximum rated pressure, which causes no malfunction or permanent deformation damage 3.5 tempera
42、ture range range of the temperature within which the apparatus can operate satisfactorily 3.6 Leakage3.6.1 external leakage leakage of the fluid contained in the end cock to atmosphere 3.6.2 internal leakage leakage of the fluid contained in the end cock from one side to the other side with the valv
43、e component part in the closed position 3.7 driftchange 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 conditions NOTE Sometim
44、es 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 the responsibility of
45、 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 verified when tests are
46、 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 value if operationa
47、l 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 5.3.13. d) In the vibrat
48、ional 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. Licensed Copy: Wang Bin, na, Thu Dec 01 00:51:12 GMT 2005, Uncontrolled Copy, (c) BSIEN 14601:2005 (E) 104.3 Functional characte
49、ristics 4.3.1 General The operating handle of the end cock shall be equipped with a detent 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). 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
