AS 2474-1990

1 - AS 2474-1990 VALVES FOR COMPRESSED GAS CYLINDERS (DIAMETER-INDEXED OUTLET)
4 - PREFACE
4 - CONTENTS
5 - 1 SCOPE
5 - 2 REFERENCED DOCUMENTS
5 - 3 DEFINITIONS
5 - 4 CLASSIFICATION AND DESIGNATION
5 - 5 MATERIALS
5 - 6 MANUFACTURING CONSIDERATIONS
5 - 6.1 General
5 - 6.2 Valve stem thread
5 - 6.3 Valve operations
5 - 6.4 Pressure rating
5 - 7 TESTING
5 - 8 MARKING
12 - APPENDIX A - SCHEME FOR ALLOCATION OF CONNECTION DESIGNATIONS FOR GASES AND GAS MIXTURES

Specifies outlet connection dimensions for a system of diameter-indexed connections for a limited range of nominated gases. Does not apply to valves for portable gas cylinders of less than 11 kg water capacity for self-contained breathing apparatus, or to valves for fire extinguishers.

This Standard specifies outlet connection dimensions for a system of diameter-indexed valve connections for a limited range of nominated gases.NOTE: Requirements for other aspects of the valves are specified by reference to AS 2473. Requirements for valves employing the pin-indexed outlet connections (for medical application) are specified in AS 2472.This Standard does not apply to valves for portable gas cylinders of less than 11 kg water capacity for self-contained breathing apparatus, or to valves for fire extinguishers.

Obsolescent 14-07-2004