FprEN 14601

SLOVENSKI STANDARD
oSIST prEN 14601:2023
01-april-2023
Železniške naprave - Ravne in kotne zaporne pipe za zavorne in glavne zračne
vode
Railway applications - Straight and angled end cocks for brake pipe and main reservoir
pipe
Bahnanwendungen - Gerade und abgewinkelte Luftabsperrhähne für die Hauptluftleitung
und Hauptbehälterleitung
Applications ferroviaires - Robinets d'arrêt droit ou coudé pour conduite générale de frein
et conduite principale
Ta slovenski standard je istoveten z: prEN 14601
ICS:
45.040 Materiali in deli za železniško Materials and components
tehniko for railway engineering
oSIST prEN 14601:2023 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

oSIST prEN 14601:2023
oSIST prEN 14601:2023
DRAFT
EUROPEAN STANDARD
prEN 14601
NORME EUROPÉENNE
EUROPÄISCHE NORM
February 2023
ICS 45.060.01 Will supersede EN 14601:2005+A2:2021
English Version
Railway applications - Straight and angled end cocks for
brake pipe and main reservoir pipe
Applications ferroviaires - Robinets d'arrêt droit ou Bahnanwendungen - Gerade und abgewinkelte
coudé pour conduite générale de frein et conduite Luftabsperrhähne für die Hauptluftleitung und
principale Hauptbehälterleitung
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee
CEN/TC 256.
If this draft becomes a European Standard, CEN members 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.

This draft European Standard was established by CEN 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
Management 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, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and
United Kingdom.
Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are
aware and to provide supporting documentation.

Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without
notice and shall not be referred to as a European Standard.

EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2023 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 14601:2023 E
worldwide for CEN national Members.

oSIST prEN 14601:2023
prEN 14601:2023 (E)
Contents Page
European foreword . 4
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 5
4 Requirements . 10
4.1 Operating conditions . 10
4.2 Functional characteristics . 11
4.2.1 General. 11
4.2.2 Open and closed positions . 11
4.2.3 Lubrication . 11
4.2.4 Venting port . 11
4.2.5 Torque. 11
4.2.6 Spindle handle of the end cock . 11
4.2.7 Fall time . 12
4.2.8 Leakage . 12
4.2.9 Vacuum withstanding . 12
4.2.10 Pneumatic shocks . 12
4.3 Constructional characteristics . 13
4.3.1 External appearance . 13
4.3.2 Connections . 13
4.3.3 Space envelope . 13
4.3.4 Mechanical shocks . 13
4.3.5 Resistance to torque . 13
4.3.6 Life expectancy . 13
5 Type test methods . 13
5.1 Sampling for type test . 13
5.2 Test requirements . 13
5.3 Test procedure . 14
5.3.1 Principle . 14
5.3.2 Check of physical and geometrical characteristics . 14
5.3.3 Measurement of the operating torque . 15
5.3.4 Measurement of the pressure fall time . 15
5.3.5 Hydraulic test (water pressure) of the end cock body at given pressure . 17
5.3.6 Operating test under air flow condition . 17
5.3.7 Pneumatic test of the isolating device at given pressures and temperatures . 18
5.3.8 Endurance at ambient temperature with reduced air flow . 20
5.3.9 Measurement of the operating torque drift . 21
5.3.10 Vibration test . 21
5.3.11 Resistance to shock test . 22
5.3.12 Vacuum test . 22
5.3.13 Corrosion test . 23
5.3.14 Resistance to torque . 23
5.3.15 Examination . 24
oSIST prEN 14601:2023
prEN 14601:2023 (E)
5.4 Approval validity . 24
5.5 Type test report . 25
6 Homologation . 25
6.1 General . 25
6.1.1 Procedure . 25
6.1.2 Pass/fail criteria . 25
6.2 Homologation test report . 26
7 Routine tests . 26
8 Designation . 26
9 Marking . 26
Annex A (normative) Dimensions of end cocks . 27
Bibliography . 31

oSIST prEN 14601:2023
prEN 14601:2023 (E)
European foreword
This document (prEN 14601:2023) has been prepared by Technical Committee CEN/TC 256 “Railway
applications”, the secretariat of which is held by DIN.
This document is currently submitted to the CEN Enquiry.
This document will supersede EN 14601:2005+A2:2021.
prEN 14601:2023 includes the following significant technical changes with respect to
EN 14601:2005+A2:2021:
— normative references have been updated;
— tested end cock numbers in Table 1 “Operations to carry out for qualification” have been
supplemented for 5.3.7;
— in 5.3.7 “Pneumatic test of the isolating device at given pressures and temperatures” a new time
requirement for performance of the test has been added.
oSIST prEN 14601:2023
prEN 14601:2023 (E)
1 Scope
This document 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 taking the type
of vehicles and track-gauge into consideration.
This document specifies requirements for the design, dimensions, testing and certification (qualification
and/or homologation), and marking.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements 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 50125-1:2014, Railway applications - Environmental conditions for equipment - Part 1: Rolling stock
and on-board equipment
EN 61373:2010, Railway applications — Rolling stock equipment — Shock and vibration tests
(IEC 61373:1999)
EN ISO 1179-1:2013, Connections for general use and fluid power — Ports and stud ends with ISO 228-1
threads with elastomeric or metal-to-metal sealing — Part 1: Threaded ports
EN ISO 9227:2022, Corrosion tests in artificial atmospheres — Salt spray tests (ISO 9227:2022)
ISO 4975:2022, Railway applications — Braking system — Quality of compressed air for pneumatic
apparatus and systems
ISO 5208:2015, Industrial valves — Pressure testing of valves
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminology databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https://www.iso.org/obp/
— IEC Electropedia: available at https://www.ele
...