CGA V 9 : 2012
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
COMPRESSED GAS CYLINDER VALVES
11-20-2019
01-12-2013
1 Introduction
2 Scope
3 Definitions
4 Design considerations
4.1 Valve connection
4.2 Temperatures
4.3 Leak rate
4.4 Materials
4.5 Cleaning
4.6 Markings
4.7 Pressure relief devices
4.8 Specific valves
4.9 Other valve components/devices
5 Valve types and descriptions
5.1 Packed valves
5.2 Pressure seal valves
5.3 O-ring valves
5.4 Diaphragm valves
5.5 Post-type medical valves
5.6 Reverse seated valves
5.7 Remotely operated valves
5.8 Additional valve types
6 Valve qualification and documentation
6.1 General
6.2 Documentation
6.3 Valve qualification test procedure
7 Valve qualification tests
7.1 Performance and qualifying test
7.2 Conditional qualifying tests
8 Testing of production valves
9 Maintenance
9.1 Inspection-general requirements
9.2 Inspection procedure
10 References
11 Additional references
Tables
Appendices
Appendix A - Valve selection guidelines (Informative)
Appendix B - DOs and DO NOTs relative to valve use and
abuse (Informative)
Appendix C - Performance standard for cylinder valve
protection caps (Informative)
Appendix D - Oxygen pressure surge test (Normative)
Appendix E - Compressed gas cylinder valve figures
(Informative)
Appendix F - Coding system for threaded cylinder outlets and
threaded valve inlets (Normative)
Appendices Tables
Appendices Figures
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