ONORM EN 14601 : 2011
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
RAILWAY APPLICATIONS - STRAIGHT AND ANGLED END COCKS FOR BRAKE PIPE AND MAIN RESERVOIR PIPE
17-03-2022
12-01-2013
Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Requirements
4.1 General
4.2 Operating conditions
4.3 Functional characteristics
4.3.1 General
4.3.2 Open and closed positions
4.3.3 Lubrication
4.3.4 Venting port
4.3.5 Torque
4.3.6 Spindle handle of the end cock
4.3.7 Fall time
4.3.8 Leakage
4.3.9 Vacuum withstanding
4.3.10 Pneumatic shocks
4.4 Constructional characteristics
4.4.1 External appearance
4.4.2 Connections
4.4.3 Space envelope
4.4.4 Mechanical shocks
4.4.5 Resistance to torque
4.4.6 Life expectancy
5 Type test methods
5.1 Sampling for type test
5.2 Test requirements
5.3 Test procedure
5.3.1 Principle
5.3.2 Check of physical and geometrical
characteristics
5.3.3 Measurement of the operating torque
5.3.4 Measurement of the pressure fall time
5.3.5 Hydraulic test (water pressure) of the end
cock body at given pressure
5.3.6 Operating test under air flow condition
5.3.7 Pneumatic test of the isolating device at given
pressures and temperatures
5.3.8 Endurance at ambient temperature with reduced
air flow
5.3.9 Measurement of the operating torque drift
5.3.10 Vibration test
5.3.11 Resistance to shock test
5.3.12 Vacuum test
5.3.13 Corrosion test
5.3.14 Resistance to torque:
5.3.15 Examination
5.4 Approval validity
5.5 Type test report
6 Homologation
6.1 General
6.1.1 Procedure
6.1.2 Pass/fail criteria
6.2 Homologation test report
7 Routine tests
8 Designation
9 Marking
Annex A (normative) Dimensions of end cocks
Annex ZA (informative) Relationship between this European
Standard and the Essential
Requirements of EU Directive 96/48
ANNEX ZB (informative) Relationship between this European
Standard and the Essential
Requirements of EU Directive 2001/16
Bibliography
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