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