1 - AS 1528.2-2001 TUBES (STAINLESS STEEL) AND TUBE FITTINGS FOR THE FOOD INDUSTRY - SCREWED COUPLINGS
4 - PREFACE
5 - CONTENTS
6 - SECTION 1 RECESSED RING JOINT TYPE
6 - 1.1 SCOPE OF SECTION
6 - 1.2 APPLICATION
6 - 1.3 REFERENCED DOCUMENTS
6 - 1.4 TYPES AND ASSEMBLIES
6 - 1.5 MATERIALS
6 - 1.5.1 Male parts, liners, nuts and blank caps
6 - 1.5.2 Pressure and temperature specification
7 - 1.5.3 Joint rings
7 - 1.6 DIMENSIONS AND TOLERANCES
7 - 1.6.1 Male parts, liners, nuts and blank caps
7 - 1.6.2 Joint rings
7 - 1.7 SCREW THREADS
10 - 1.8 SURFACE FINISH
10 - 1.8.1 External surfaces
10 - 1.8.2 Internal surfaces
10 - 1.9 PACKAGING
10 - 1.10 MARKING
10 - 1.10.1 On the container
10 - 1.10.2 On parts
11 - SECTION 2 TRAPEZOIDAL THREAD TYPE SCREWED COUPLINGS (IDF TYPE)
11 - 2.1 SCOPE OF SECTION
11 - 2.2 APPLICATION
11 - 2.3 REFERENCED DOCUMENTS
11 - 2.4 MATERIALS
11 - 2.4.1 Male parts, liners, nuts and support rings
11 - 2.4.2 Filler rods for welding
12 - 2.5 SYMBOLS
13 - 2.6 EXPANDED-TYPE MALE PART
14 - 2.7 EXPANDED-TYPE LINER
15 - 2.8 WELDED-TYPE MALE PART
16 - 2.9 WELDED-TYPE LINER
17 - 2.10 HEXAGON NUT
18 - 2.11 ROUND NUT
19 - 2.12 IDF GASKET
20 - 2.13 ASSEMBLING
20 - 2.13.1 Welding
20 - 2.13.2 Expanding
20 - 2.14 HYGIENIC REQUIREMENTS
20 - 2.14.1 Accessibility of surface of coupling
20 - 2.14.2 Welded male parts and liners
20 - 2.14.3 Gasket
20 - 2.15 SURFACE FINISH
20 - 2.15.1 External surfaces
20 - 2.15.2 Internal surfaces
21 - APPENDIX A - INFORMATION TO BE SUPPLIED BY THE PURCHASER
22 - APPENDIX B - GUIDE FOR EXPANDING WITH STRAIGHT TUBE- RECESSED RING JOINT SCREWED COUPLINGS
22 - B1 INTRODUCTION
22 - B2 TOOLS
22 - B3 PROCEDURE
22 - B3.1 Preparation
23 - B3.2 Cutting the tube
23 - B3.3 Expansion
25 - APPENDIX C - GUIDE FOR WELDING
25 - C1 INTRODUCTION
25 - C2 METHODS
25 - C2.1 Method 1-Arc with filler rod
25 - C2.2 Method 2-Gas Tungsten Arc Welding (GTAW) without filler rod but with inert gas protection on both sides of the weld
25 - C3 PROCEDURE
26 - APPENDIX D - CROSS-SECTIONS OF SCREWED COUPLING ASSEMBLIES
28 - APPENDIX E - DIMENSIONS OF RECESSED RING JOINT SCREWED COUPLINGS AND COMPONENTS
28 - E1 EXPANDED-TYPE MALE PART
29 - E2 EXPANDED-TYPE LINER
30 - E3 WELDED-TYPE MALE PART LIP REMOVED, SUITABLE FOR FLAT FACED COUPLING
31 - E4 WELDED-TYPE MALE PART
32 - E5 WELDED-TYPE FACE LINER
33 - E6 WELDED-TYPE LINER
34 - E7 SLOTTED ROUND NUT
35 - E8 HEX NUT
36 - E9 BLANK CAP
37 - APPENDIX F - GROOVES FOR EXPANDED- TYPE MALE PARTS AND LINERS
38 - APPENDIX G - DIMENSIONS OF JOINT RINGS FOR RECESSED RING JOINTS
38 - G1 FLAT FACED MODIFIED SEAL, STANDARD ORING, AUSTRALIAN CREVICE FREE SEAL
39 - APPENDIX H - TRAPEZOIDAL THREAD INTENDED FOR SCREWED COUPLINGS
39 - H1 EXPLANATION OF TERMS
39 - H1.1 Basic profile
39 - H1.2 Pitch (P)
39 - H1.3 Major diameter
39 - H1.4 Pitch diameter
39 - H1.5 Minor diameter
39 - H1.6 GO side profile
40 - H2 DETERMINATION OF THREAD LIMITING DIMENSIONS
40 - H2.1 Thread diameters
40 - H2.2 Root width of threads (w, W) on GO side profile
41 - H3 THREAD DIMENSIONS
41 - H3.1 Male Part
42 - H3.2 Nut
43 - APPENDIX I - GASKET FOR TRAPEZOIDAL THREADS TYPE COUPLING
44 - APPENDIX J - GUIDE FOR EXPANDING WITH STRAIGHT TUBE- TRAPEZOIDAL THREADS SCREWED COUPLINGS
44 - J1 INTRODUCTION
44 - J2 TOOLS
44 - J3 PROCEDURE
44 - J3.1 Preparation (see Figure J1)
44 - J3.2 Cutting the tube (see Figure J1)
45 - J3.3 Expansion (see Figure J1 and J2)
46 - J3.4 Facing off (see Figure J3)