AS 3673-1989

1 - AS 3673-1989 MALLEABLE CAST IRON THREADED PIPE FITTINGS
4 - PREFACE
4 - CONTENTS
5 - 1 SCOPE.
5 - 2 REFERENCED DOCUMENTS.
5 - 3 DEFINITIONS.
5 - 3.1 Fitting
5 - 3.2 Nominal size (DN)
5 - 3.3 Fastening thread
5 - 3.4 Sealing pipe thread
5 - 3.5 Chamfer
5 - 3.6 Reinforcement
5 - 3.7 Rib
5 - 3.8 Outlet
5 - 3.9 Run
5 - 3.10 Branch
5 - 3.11 Centre to face dimension
5 - 4 TYPES OF FITTINGS AND SYMBOLS.
5 - 5 NOMINAL SIZE RANGE.
5 - 6 NOMINAL SIZE DESIGNATION.
6 - 7 PRESSURE/TEMPERATURE RATINGS.
6 - 8 DIMENSIONS AND TOLERANCES.
6 - 8.1 Fitting dimensions.
6 - 8.2 Wall thickness.
6 - 8.3 Reinforcement.
6 - 8.4 Spanner flats.
6 - 8.5 Tolerance on face to face, centre to face and centre to centre dimensions.
7 - 8.6 Union gaskets.
7 - 9 THREADS.
7 - 9.1 Sealing pipe threads.
7 - 9.2 Fastening threads.
7 - 9.3 Gauging of threads.
7 - 9.3.1 Sealing pipe threads.
7 - 9.3.2 Fastening threads.
7 - 9.4 Alignment of threads.
7 - 9.5 Chamfering of threads.
7 - 9.5.1 Outlets
7 - 9.5.2 Internal threads
7 - 9.5.3 External threads
7 - 10 MANUFACTURE.
7 - 10.1 Fittings.
7 - 10.2 Galvanizing.
7 - 10.3 Impregnation.
7 - 11 DESIGN.
7 - 11.1 General.
7 - 11.2 Reinforcement.
7 - 11.3 Flats for bushes, nipples, backnuts, caps (hexagon), plugs and unions.
7 - 11.4 Bushes.
7 - 11.5 Backnuts.
7 - 11.6 Plugs.
7 - 11.7 Unions.
8 - 12 TESTING AND INSPECTION.
8 - 12.1 Leak tightness.
8 - 12.2 Inspection.
8 - 13 MARKING.
8 - 13.1 General.
8 - 13.2 Space for marking of certifying body.
26 - APPENDIX A - INFORMATION TO BE SUPPLIED WITH ORDER
26 - APPENDIX B - EFFECT OF NON-METALLIC MATERIALS ON WATER QUALITY

Specifies requirements for malleable cast iron threaded pipe fittings with a size range for use with steel tubes and tubulars as specified in AS 1074.

This Standard specifies requirements for the design and performance of malleable cast iron threaded pipe fittings for two basic designs, those having taper external and taper internal threads and those having taper external and parallel internal threads in accordance with AS 1722.1 for use with steel tubes and tubulars as specified in AS 1074.NOTE: Guidelines on information that should be specified by the purchaser or agreed upon at the time of enquiry or order are given in Appendix A.