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AS
AS 3688-2005

AS 3688-2005

Superseded

Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

View Superseded by

Water supply - Metallic fittings and end connectors

Available format(s)

Hardcopy , PDF 1 User , PDF 3 Users , PDF 5 Users , PDF 9 Users

Superseded date

25-07-2024

Superseded by

AS 3688:2016

Published date

04-08-2005

Publisher

Standards Australia

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Hardcopy - English
PDF 1 User - English
PDF 3 Users - English
PDF 5 Users - English
PDF 9 Users - English
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1 - AS 3688-2005 WATER SUPPLY-METALLIC FITTINGS AND END CONNECTORS
4 - PREFACE
5 - CONTENTS
7 - SECTION 1 SCOPE AND GENERAL
7 - 1.1 SCOPE
7 - 1.2 APPLICATION
7 - 1.3 REFERENCED DOCUMENTS
8 - 1.4 DEFINITIONS
8 - 1.4.1 Fabricated joint or fitting
8 - 1.4.2 Fastening pipe thread
8 - 1.4.3 Sealing pipe thread
8 - 1.4.4 Threaded-end connector
8 - 1.4.5 Union end connector
8 - 1.5 DESIGNATION OF SIZE
8 - 1.6 MARKING
8 - 1.6.1 Space for mark of certifying body
8 - 1.6.2 Components
8 - 1.6.3 Marking requirements
9 - 1.7 PRODUCT DOCUMENTATION
9 - 1.7.1 Product data
10 - SECTION 2 MATERIALS
10 - 2.1 SCOPE OF SECTION
10 - 2.2 MATERIALS IN CONTACT WITH DRINKING WATER
10 - 2.3 METALLIC MATERIALS
10 - 2.3.1 CORROSION-RESISTANT METALLIC MATERIALS
10 - 2.3.2 COPPER
10 - 2.3.3 COPPER ALLOY
10 - 2.3.4 DEZINCIFICATION-RESISTANT (DR) COPPER ALLOY
10 - 2.3.5 STAINLESS STEEL
11 - 2.4 PLASTIC COMPONENT MATERIALS
11 - 2.4.1 General
11 - 2.4.2 Acetal
11 - 2.4.3 'Not applicable'
11 - 2.5 OTHER COMPONENT MATERIALS
12 - SECTION 3 DESIGN AND DIMENSIONS
12 - 3.1 SCOPE OF SECTION
12 - 3.2 TUBE STOPS
12 - 3.3 SLIP FITTINGS
13 - 3.4 SPIGOTS
13 - 3.5 FIXING DEVICE
13 - 3.6 WATERWAYS
13 - 3.6.1 Copper and copper alloy
13 - 3.6.2 Stainless steel
13 - 3.7 THICKNESS OF METAL PARTS OF FITTINGS SPECIFIED BY DIMENSION
13 - 3.7.1 General
13 - 3.7.2 Minimum thickness of unspecified metal parts
15 - 3.8 SCREW THREADS
15 - 3.8.1 Screw-threaded sealing connections
15 - 3.8.2 Screw-threaded fastening connections
15 - 3.8.3 Thread engagement-Assembled joints
15 - 3.8.4 Other screw threads
16 - 3.9 FABRICATED FITTINGS
16 - 3.10 GEOMETRY OF FITTINGS
16 - 3.11 PLATING AND OTHER SURFACE FINISHES
16 - 3.12 FINISH AND WORKMANSHIP
17 - SECTION 4 PERFORMANCE REQUIREMENTS
17 - 4.1 SCOPE OF SECTION
17 - 4.2 WATERTIGHTNESS PRESSURE TEST
17 - 4.3 STRENGTH OF FABRICATED JOINT (TORQUE TEST)
17 - 4.4 STRENGTH OF JOINT ASSEMBLY (PRESSURE CYCLING TEST)
17 - 4.5 RESISTANCE TO PULL-OUT OF ASSEMBLED JOINTS
17 - 4.6 STRENGTH OF NUT AND ASSEMBLY (TORQUE TEST)
17 - 4.7 THERMAL CYCLING TEST FOR JOINTS CONTAINING NON-METALLIC COMPONENTS
17 - 4.8 WATERTIGHTNESS UNDER INTERNAL HYDROSTATIC PRESSURE WHILST SUBJECTED TO BENDING
18 - 4.9 METHOD FOR DETERMINING COMPATIBILITY OF FITTINGS WITH PIPE
18 - 4.10 ROLL-GROOVED ASSEMBLY (JOINT PRESSURE RESISTANCE TEST)
19 - SECTION 5 CAPILLARY FITTINGS-COPPER AND COPPER ALLOY
19 - 5.1 SCOPE OF SECTION
19 - 5.2 DESIGN AND DIMENSIONS
19 - 5.2.1 General
19 - 5.2.2 Internal diameter of socket
19 - 5.2.3 Length of socket
19 - 5.2.4 Wall thickness
20 - 5.2.5 Branches of different nominal size
20 - 5.2.6 Waterway diameter
21 - 5.3 PERFORMANCE REQUIREMENTS
22 - SECTION 6 COMPRESSION FITTINGS
22 - 6.1 SCOPE OF SECTION
22 - 6.2 DESIGN
22 - 6.2.1 Copper alloy compression fittings manufactured to dimensions
22 - 6.2.2 Compression fittings complying with performance requirements
22 - 6.3 PERFORMANCE REQUIREMENTS
22 - 6.3.1 Compression fittings complying with Clause 6.2.1
22 - 6.3.2 Compression fittings complying with Clause 6.2.2
25 - SECTION 7 THREADED-END CONNECTORS
25 - 7.1 SCOPE OF SECTION
25 - 7.2 DIMENSIONS
25 - 7.3 DESIGN
25 - 7.3.1 Thread stop
25 - 7.3.2 Wrenching flats
25 - 7.3.3 Thickness of threaded-end connectors
25 - 7.3.4 Thread sealing
25 - 7.4 PERFORMANCE REQUIREMENTS
28 - SECTION 8 UNION END CONNECTORS AND COUPLINGS
28 - 8.1 SCOPE OF SECTION
28 - 8.2 DESIGN
28 - 8.2.1 Minimum wall thickness
28 - 8.2.2 Screw threads
28 - 8.2.3 Provision for tightening
28 - 8.2.4 Performance requirements
29 - SECTION 9 ROLL-GROOVED JOINTING END CONNECTORS AND COUPLING BODY
29 - 9.1 SCOPE OF SECTION
29 - 9.2 MATERIALS
29 - 9.2.1 Coupling
29 - 9.3 DESIGN
29 - 9.3.1 Fittings
30 - 9.3.2 Coupling
31 - 9.4 PERFORMANCE REQUIREMENTS AND TEST METHODS
31 - 9.5 INSTALLATION INSTRUCTIONS
32 - SECTION 10 MECHANICAL JOINTING END CONNECTORS
32 - 10.1 SCOPE OF SECTION
32 - 10.2 DESIGN
32 - 10.2.1 General
32 - 10.2.2 Joint assembly-Mechanical-friction locked-end connectors
32 - 10.2.3 Joint assembly-Press-fit end connectors
32 - 10.3 PERFORMANCE
32 - 10.4 INSTALLATION INSTRUCTIONS
33 - SECTION 11 OTHER COPPER ALLOY FITTINGS
33 - 11.1 SCOPE OF SECTION
33 - 11.2 THREADED SOCKETS
33 - 11.3 REDUCING BUSHES WITH OVERLAPPING INTERNAL AND EXTERNAL THREADS
34 - 11.4 CONTINUOUSLY THREADED FITTINGS
34 - 11.5 PERFORMANCE REQUIREMENTS
35 - APPENDIX A - MEANS FOR DEMONSTRATING COMPLIANCE WITH THIS STANDARD
35 - A1 SCOPE
35 - A2 RELEVANCE
35 - A3 PRODUCT CERTIFICATION
35 - A4 DEFINITIONS
35 - A4.1 Batch release test
35 - A4.2 Production batch
35 - A4.3 Sample
35 - A4.4 Sampling plan
35 - A4.5 Type test batch
35 - A4.6 Type testing (TT)
36 - A5 TESTING
36 - A5.1 Type testing
36 - A5.2 Batch release testing
36 - A5.3 Retesting
36 - A6 TYPE TESTS
38 - A7 BATCH TESTS
39 - APPENDIX B - LIST OF REFERENCED DOCUMENTS
41 - APPENDIX C - SIZES AND TYPES OF FITTINGS
41 - C1 GENERAL
41 - C2 END CONNECTIONS
41 - C2.1 Screw-threaded sealing connections
41 - C2.2 Screw-threaded fastening connections
41 - C2.3 Capillary fittings
41 - C2.4 Compression fittings
42 - C3 EXAMPLES
44 - APPENDIX D - WATERTIGHTNESS PRESSURE TEST
44 - D1 SCOPE
44 - D2 PRINCIPLE
44 - D3 APPARATUS
45 - D4 TEST CONDITIONS
45 - D5 PROCEDURE
45 - D5.1 Hydrostatic test (all fittings)
45 - D5.2 Pneumatic test (in conjunction with hydrostatic test for cast fittings only)
45 - D6 TEST REPORT
46 - APPENDIX E - STRENGTH OF FABRICATED JOINT-TORQUE TEST
46 - E1 SCOPE
46 - E2 PRINCIPLE
46 - E3 APPARATUS
46 - E4 PROCEDURE
46 - E5 TEST REPORT
48 - APPENDIX F - STRENGTH OF JOINT ASSEMBLY-PRESSURE CYCLING TEST
48 - F1 SCOPE
48 - F2 PRINCIPLE
48 - F3 APPARATUS
48 - F4 PROCEDURE
49 - F5 TEST REPORT
50 - APPENDIX G - RESISTANCE TO PULL-OUT OF ASSEMBLED JOINTS
50 - G1 SCOPE
50 - G2 PRINCIPLE
50 - G3 APPARATUS
50 - G4 TEST ENVIRONMENT
50 - G4.1 Metal joints
50 - G4.2 Composite joints
51 - G5 PROCEDURE
52 - G6 TEST REPORT
53 - APPENDIX H - STRENGTH OF NUT AND ASSEMBLY-TORQUE TEST
53 - H1 SCOPE
53 - H2 PRINCIPLE
53 - H3 APPARATUS
53 - H4 PROCEDURE
54 - H5 TEST REPORT
55 - APPENDIX I - THERMAL CYCLING TEST
55 - I1 SCOPE
55 - I2 PRINCIPLE
55 - I3 APPARATUS
55 - I4 ASSEMBLY
55 - I5 PROCEDURE
56 - I6 TEST REPORT
57 - APPENDIX J - METHOD FOR DETERMINING WATERTIGHTNESS UNDER INTERNAL HYDROSTATIC PRESSURE WHILST SUBJECTED TO BENDING
57 - J1 SCOPE
57 - J2 APPARATUS
57 - J3 PREPARATION OF JOINT ASSEMBLIES
58 - J4 PROCEDURE
58 - J5 TEST REPORT
59 - APPENDIX K - METHOD FOR DETERMINING COMPATIBILITY OF FITTINGS WITH PIPE
59 - K1 SCOPE
59 - K2 PRINCIPLE
59 - K3 APPARATUS
60 - K4 PREPARATION OF TEST SPECIMENS
60 - K5 CONDITIONING OF TEST SPECIMENS
60 - K6 PROCEDURE
61 - K7 TEST REPORT
62 - APPENDIX L - ROLL-GROOVED ASSEMBLY JOINT PRESSURE RESISTANCE TEST
62 - L1 SCOPE
62 - L2 PRINCIPLE
62 - L3 APPARATUS
62 - L4 TEST CONDITIONS
63 - L5 PROCEDURE
63 - L6 TEST REPORT
64 - APPENDIX M - SIMULATED SAMPLES
64 - M1 SCOPE
64 - M2 GENERAL
64 - M3 TYPICAL EXAMPLES OF SIMULATED SAMPLES
64 - M4 SPECIAL ISSUES
65 - M5 COMPONENT DOCUMENTATION
65 - M6 ACCEPTANCE

Specifies requirements for metallic body pipe fittings and connectors for use with copper tubes and stainless steel pipes and tubes and adaptor fittings for connection to other pipe materials in water supply and gas systems where the normal working temperature does not exceed 95 degrees Celsius, and where the maximum operating pressure does not exceed 1.4MPa.

Committee
WS-001
DocumentType
Standard
ISBN
0 7337 6810 5
Pages
59
PublisherName
Standards Australia
Status
Superseded
SupersededBy
Supersedes
UnderRevision

This Standard specifies requirements for metallic body pipe fittings and connectors for use with copper tubes and stainless steel pipes and tubes and adaptor fittings for connection to other pipe materials in water supply and gas systems where the normal working temperature does not exceed 95°C, and where the maximum operating pressure does not exceed 1.4 MPa.Products designed for a temperature in excess of 95°C are included where tested to the appropriate temperature criteria.NOTES:1 For fittings used for gas applications, see AS5601.2 Illustrations used in this Standard are diagrammatic only and have been chosen without prejudice.

Originated as AS 3688-1994.
Third Edition AS 3688-2005.
Reissued incorporating Amendment No. 1 (October 2006).

AS 1834.1-1991 Material for soldering Solder alloys (Reconfirmed 2018)
AS 5601-2004 Gas installations
AS 1349-1986 Bourdon tube pressure and vacuum gauges (Reconfirmed 2018)
AS 1646.3-2000 Elastomeric seals for waterworks purposes - Material requirements for pipe joints seals used in water and wastewater applications with the exception of natural rubber and polyisoprene compounds
AS/NZS 3500.4:2003 Plumbing and drainage Heated water services
AS/NZS 1568:1998 Copper and copper alloys - Forging stock and forgings
AS 1432-2004 Copper tubes for plumbing, gasfitting and drainage applications
AS 2345-1992 Dezincification resistance of copper alloys
AS 1646.1-2000 Elastomeric seals for waterworks purposes - General requirements
AS/NZS 1567:1997 Copper and copper alloys - Wrought rods, bars and sections (Reconfirmed 2021)
AS/NZS 4020:2005 Testing of products for use in contact with drinking water
AS/NZS 4020:2002 Testing of products for use in contact with drinking water
AS 1572-1998 Copper and copper alloys - Seamless tubes for engineering purposes (Reconfirmed 2018)
AS 1646.4-2005 Elastomeric seals for waterworks purposes Material requirements for pipe joint seals used in water and wastewater applications - Thermoplastic elastomers and vulcanizates
AS 1722.2-1992 Pipe threads of Whitworth form Fastening pipe threads (Reconfirmed 2017)
AS 1167.1-1993 Welding and brazing - Filler metals Filler metal for brazing and braze welding
AS 1722.1-1975 Pipe threads of Whitworth form Sealing pipe threads (metric units)
AS/NZS 3500.1:2003 Plumbing and drainage Water services
AS 2136-1977 Method for detecting the susceptibility of copper and its alloys to stress corrosion cracking using the mercurous nitrate test (Reconfirmed 2018)
AS 2738-2000 Copper and copper alloys - Compositions and designations of refinery products, wrought products, ingots and castings (Reconfirmed 2018)
AS 1565-1996 Copper and copper alloys - Ingots and castings (Reconfirmed 2020)
AS/NZS 1167.1:2005 Welding and brazing - Filler metals Filler metal for brazing and braze welding
AS/NZS 3707:2001 Method for testing pressure cycling resistance of pipes and fittings
AS 1646.2-2000 Elastomeric seals for waterworks purposes Material requirements for pipe joint seals used in water and wastewater applications - Specifies by prescription formulation
AS/NZS 3500.0:2003 Plumbing and drainage Glossary of terms
AS 3558.5-1999 Methods of testing plastics and composite materials sanitary plumbing fixtures Determination of degradation by ultraviolet light (Reconfirmed 2016)
AS 2345-2006 Dezincification resistance of copper alloys
AS 2831-1985 Thermometers - Solid stem - Long and short - For precision use

AS 4554-2005 Gas laundry dryers (Reconfirmed 2016)
AS 5200.458-2008 Plumbing and drainage products Universal plastic-bodied transition couplings
AS 3517-2007 Capillary fittings of copper and copper alloy for non-pressure sanitary plumbing applications (Reconfirmed 2018)
AS 4553-2008 Gas space heating appliances
AS/NZS 4766:2006 Polyethylene storage tanks for water and chemicals
AS 5200.000-2006 Technical specification for plumbing and drainage products Procedures for certification of plumbing and drainage products (Reconfirmed 2018)
AS 2896-1998 Medical gas systems - Installation and testing of non-flammable medical gas pipeline systems
AS/NZS 4645.2:2008 Gas distribution networks Steel pipe systems
AS/NZS 5601.2:2010
AS 1357.1-2004 Valves primarily for use in heated water systems Protection valves
AS/NZS 2845.1:2010 Water supply - Backflow prevention devices Materials, design and performance requirements
AS 5200.037.2-2008 Plumbing and drainage products Flow controllers for use with heated or cold water systems (Reconfirmed 2016)
ATS 5200.490-2007 Technical Specification for plumbing and drainage products Cross-linked polyethylene/ aluminium/polyethylene-composite pipe systems for pressure applications (Reconfirmed 2018)
AS/NZS 3499:2006 Water supply - Flexible hose assemblies (Reconfirmed 2016)
ATS 5200.050-2005 Technical Specification for plumbing and drainage products Prefabricated bathroom modules
AS 5830.1-2012 In-line ball valves for use in plumbing water supply systems Metal-bodied
AS/NZS 4692.1:2005 Electric water heaters Energy consumption, performance and general requirements (Reconfirmed 2016)
AS 1172.2:2014 Sanitary plumbing products Flushing devices and cistern inlet and outlet valves
AS/NZS 3500.5:2012 Plumbing and drainage Housing installations
AS 1697-2005 Installation and maintenance of steel pipe systems for gas
AS 4032.2-2005 Water supply - Valves for the control of hot water supply temperatures Tempering valves and end-of-line temperature-actuated devices (Reconfirmed 2015)
AS/NZS 3500.4:2003 Plumbing and drainage Heated water services
AS/NZS 3500.2:2003 Plumbing and drainage Sanitary plumbing and drainage
AS 5082.2-2007 Polybutylene (PB) plumbing pipe systems - Metric series Mechanical and fusion jointing systems (Reconfirmed 2017)
MP 52-2005 Manual of authorization procedures for plumbing and drainage products
AS 1357.2-2005 Valves primarily for use in heated water systems Control valves (Reconfirmed 2015)
AS 1628-1999 Water supply - Metallic gate, globe and non-return valves (Reconfirmed 2015)
AS 4041-2006 Pressure piping (Reconfirmed 2016)
ATS 5200.478-2006 Technical Specification for plumbing and drainage products Cross-linked polyethylene/Aluminium/Cross-linked polyethylene macro-composite pipe systems for pressure applications
ATS 5200.420-2005 Technical Specification for plumbing and drainage products Trap-priming valves
ATS 5200.037.1-2006
AS 4176-1994 Polyethylene/aluminium and cross-linked polyethylene/aluminium macro-composite pipe systems for pressure applications
AS 1361-1995 Electric heat-exchange water heaters - For domestic applications (Reconfirmed 2016)
AS/NZS 3718:2005 Water supply - Tap ware (Reconfirmed 2016)
ATS 5200.472-2006 Technical Specification for plumbing and drainage products Heated water system recirculation device
AS/NZS 2642.3:1994 Polybutylene pipe systems Mechanical jointing fittings for use with polybutylene (PB) pipes for hot and cold water applications
AS/NZS 5601.1:2013 Gas installations General installations
AS 4775-2007 Emergency eyewash and shower equipment
ATS 5200.053-2006 Technical Specification for plumbing and drainage products Stainless steel pipes and tubes
AS 1910-2004 Water supply - Float control valves for use in hot and cold water (Reconfirmed 2016)
AS 2537-1994 Mechanical jointing fittings for use with cross-linked polyethylene (PE-X) pipe for hot and cold water applications
ATS 5200.491-2010 Technical Specification for plumbing and drainage products Aluminium alloy piping system with plastics lining for plumbing water service applications
AS/NZS 2845.1:1998 Water supply - Backflow prevention devices Materials, design and performance requirements
AS/NZS 3497:1998 Drinking water treatment units - Plumbing requirements
AS 4551-2008 Domestic gas cooking appliances
AS/NZS 5601.2:2013 Gas installations LP Gas installations in caravans and boats for non-propulsive purposes
AS 2896-2011 Medical gas systems - Installation and testing of non-flammable medical gas pipeline systems
AS 1357.1-2009 Valves primarily for use in heated water systems Protection valves
ATS 5200.481-2006 Technical Specification for plumbing and drainage products Thermal switching valves
AS 4643-2007 Overhead radiant tube gas heaters
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AS 5263.0-2013 Gas appliances General requirements
AS 5200.007-2008 Plumbing and drainage products Metal-bodied water hammer arresters
AS 2118.1-2006 Automatic fire sprinkler systems General systems
AS 5200.053-2008 Plumbing and drainage products Stainless steel pipes and tubes for pressure applications
AS/NZS 3500.1:2003 Plumbing and drainage Water services
AS 3498-2009 Authorization requirements for plumbing products - Water heaters and hot-water storage tanks
AS/NZS 4129:2008 Fittings for polyethylene (PE) pipes for pressure applications
ATS 5200.479-2006 Flood stop safety valve
AS 3498-2003 Authorization requirements for plumbing products - Water heaters and hot-water storage tanks
AS 1589-2001 Copper and copper alloy waste fittings (Reconfirmed 2018)
ATS 5200.030-2007 Technical Specification for plumbing and drainage products Solenoid valves
AS 5830.2-2012 In-line ball valves for use in plumbing water supply systems Plastics-bodied
ATS 5200.486-2008 Technical Specification for plumbing and drainage products Sprinklers for home applications

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