AS/NZS 4793:2009
Mechanical tapping bands for waterworks purposes
Specifies requirements for design, materials, and performance in service of PN 16 mechanical tapping bands used for the connection of property service pipes to reticulation watermains. It applies to tapping bands, with and without electrical insulation, for mechanical connection to standard watermains, with the exception of tapping bands for polyethylene watermains that are covered in AS/NZS 4129. The nominal operating temperature range is 0°C to 40°C.
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AS/NZS 4793:2009 MECHANICAL TAPPING BANDS FOR WATERWORKS PURPOSES
PREFACE
CONTENTS
SECTION 1 SCOPE AND GENERAL
1.1 SCOPE
1.2 REFERENCED DOCUMENTS
1.3 DEFINITIONS
1.3.1 Allowable operating pressure (AOP)
1.3.2 Allowable site test pressure (ASTP)
1.3.3 DN (Nominal size)
1.3.4 dn (Nominal size of connecting pipe)
1.3.5 Maximum allowable operating pressure (MAOP)
1.3.6 Maximum operating temperature
1.3.7 Mechanical tapping band
1.3.8 Pressure classification (PN)
1.4 DESIGNATION OF SIZE
1.5 ALLOWABLE PRESSURES
SECTION 2 MATERIALS
2.1 MATERIAL REQUIREMENTS
2.2 DEZINCIFICATION-RESISTANT MATERIALS
2.3 STAINLESS STEEL
2.4 PLASTICS MATERIALS
2.4.1 General
2.4.2 Moulded-plastics material test
2.5 COATING
2.6 ELASTOMERIC SEALS
2.7 EFFECT ON WATER
SECTION 3 DESIGN
3.1 TAPPING BAND COMPONENTS
3.2 FITMENT
3.3 TAPPING BAND TYPES
3.3.1 Type F tapping bands
3.3.2 Type R tapping bands
3.4 MEANS OF ATTACHMENT
3.5 FASTENERS
3.6 OUTLETS
3.7 BI-METALLIC CONTACT
3.8 FREEDOM FROM DEFECTS
SECTION 4 TESTING
4.1 TYPE TESTS
4.1.1 General
4.1.2 Assembly test
4.1.3 Leaktightness test during application of a bending moment to the connecting pipe
4.1.4 Joint infiltration test
4.1.5 Hydrostatic leaktightness test
4.1.6 Resistance to rotation, longitudinal sliding and depressurization
4.2 BI-METALLIC COUPLE
4.3 INTEGRATED ASSEMBLY
4.3.1 Hydraulic performance
4.3.2 Assessment of cutter efficiency
SECTION 5 MARKING AND PACKAGING
5.1 MARKING
5.2 PACKAGING
5.3 INSTALLATION INSTRUCTIONS AND PIPE COMPATIBILITY
APPENDIX A - COMPLIANCE REQUIREMENTS
A1 SCOPE
A2 PRODUCT CERTIFICATION
A3 MINIMUM SAMPLING AND TESTING FREQUENCY PLAN
A3.1 General
A3.2 Retesting
A3.3 Rejection after retest
A4 DEFINITIONS
A4.1 Tapping band batch
A4.2 Material batch
A4.3 Production shift
A4.4 Lot
A4.5 Sample
A4.6 Sampling plan
A4.7 Batch release test (BRT)
A4.8 Type test (TT)
APPENDIX B - ASSEMBLY TEST
B1 SCOPE AND GENERAL
B1.1 Scope
B1.2 Relevance of test
B2 APPARATUS
B3 PROCEDURE
B3.1 Test specimens
B3.2 Test procedure
B3.3 Report
APPENDIX C - LEAKTIGHTNESS TEST DURING APPLICATION OF A BENDING MOMENT TO THE CONNECTING PIPE
C1 SCOPE AND GENERAL
C1.1 Scope
C1.2 Relevance of test
C2 APPARATUS
C3 PROCEDURE
C3.1 Test specimens
C3.2 Test procedure
C4 REPORT
APPENDIX D - RESISTANCE TO DEPRESSURIZATION AND ROTATIONAL AND SLIDING MOVEMENT
D1 SCOPE AND GENERAL
D1.1 Scope
D1.2 Relevance of test
D2 APPARATUS
D3 PROCEDURE
D3.1 Test specimens
D3.2 Test procedure
D3.3 Resistance to rotational sliding
D3.4 Resistance to axial sliding
D4 REPORT
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References
Oriented PVC (PVC-O) pipes for pressure applications
Modified PVC (PVC-M) pipes for pressure applications
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AS/NZS 4793:2009 MECHANICAL TAPPING BANDS FOR WATERWORKS PURPOSES
PREFACE
CONTENTS
SECTION 1 SCOPE AND GENERAL
1.1 SCOPE
1.2 REFERENCED DOCUMENTS
1.3 DEFINITIONS
1.3.1 Allowable operating pressure (AOP)
1.3.2 Allowable site test pressure (ASTP)
1.3.3 DN (Nominal size)
1.3.4 dn (Nominal size of connecting pipe)
1.3.5 Maximum allowable operating pressure (MAOP)
1.3.6 Maximum operating temperature
1.3.7 Mechanical tapping band
1.3.8 Pressure classification (PN)
1.4 DESIGNATION OF SIZE
1.5 ALLOWABLE PRESSURES
SECTION 2 MATERIALS
2.1 MATERIAL REQUIREMENTS
2.2 DEZINCIFICATION-RESISTANT MATERIALS
2.3 STAINLESS STEEL
2.4 PLASTICS MATERIALS
2.4.1 General
2.4.2 Moulded-plastics material test
2.5 COATING
2.6 ELASTOMERIC SEALS
2.7 EFFECT ON WATER
SECTION 3 DESIGN
3.1 TAPPING BAND COMPONENTS
3.2 FITMENT
3.3 TAPPING BAND TYPES
3.3.1 Type F tapping bands
3.3.2 Type R tapping bands
3.4 MEANS OF ATTACHMENT
3.5 FASTENERS
3.6 OUTLETS
3.7 BI-METALLIC CONTACT
3.8 FREEDOM FROM DEFECTS
SECTION 4 TESTING
4.1 TYPE TESTS
4.1.1 General
4.1.2 Assembly test
4.1.3 Leaktightness test during application of a bending moment to the connecting pipe
4.1.4 Joint infiltration test
4.1.5 Hydrostatic leaktightness test
4.1.6 Resistance to rotation, longitudinal sliding and depressurization
4.2 BI-METALLIC COUPLE
4.3 INTEGRATED ASSEMBLY
4.3.1 Hydraulic performance
4.3.2 Assessment of cutter efficiency
SECTION 5 MARKING AND PACKAGING
5.1 MARKING
5.2 PACKAGING
5.3 INSTALLATION INSTRUCTIONS AND PIPE COMPATIBILITY
APPENDIX A - COMPLIANCE REQUIREMENTS
A1 SCOPE
A2 PRODUCT CERTIFICATION
A3 MINIMUM SAMPLING AND TESTING FREQUENCY PLAN
A3.1 General
A3.2 Retesting
A3.3 Rejection after retest
A4 DEFINITIONS
A4.1 Tapping band batch
A4.2 Material batch
A4.3 Production shift
A4.4 Lot
A4.5 Sample
A4.6 Sampling plan
A4.7 Batch release test (BRT)
A4.8 Type test (TT)
APPENDIX B - ASSEMBLY TEST
B1 SCOPE AND GENERAL
B1.1 Scope
B1.2 Relevance of test
B2 APPARATUS
B3 PROCEDURE
B3.1 Test specimens
B3.2 Test procedure
B3.3 Report
APPENDIX C - LEAKTIGHTNESS TEST DURING APPLICATION OF A BENDING MOMENT TO THE CONNECTING PIPE
C1 SCOPE AND GENERAL
C1.1 Scope
C1.2 Relevance of test
C2 APPARATUS
C3 PROCEDURE
C3.1 Test specimens
C3.2 Test procedure
C4 REPORT
APPENDIX D - RESISTANCE TO DEPRESSURIZATION AND ROTATIONAL AND SLIDING MOVEMENT
D1 SCOPE AND GENERAL
D1.1 Scope
D1.2 Relevance of test
D2 APPARATUS
D3 PROCEDURE
D3.1 Test specimens
D3.2 Test procedure
D3.3 Resistance to rotational sliding
D3.4 Resistance to axial sliding
D4 REPORT
AS/NZS 4793:2009
Online Library subscription pricing
The cost of your subscription will depend on which standards you want to access, and how many people in your organisation need to be able to access the Online Library subscription at the same time (concurrent users). During your subscription period, we are also able to make any necessary changes and ensure you are aware of any pricing changes that result. For a quote, contact our Online Library team by emailing onlinelibrary@standards.govt.nz.