AS/NZS 4793:2009

Mechanical tapping bands for waterworks purposes

Standards Australia

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1 - AS/NZS 4793:2009 MECHANICAL TAPPING BANDS FOR WATERWORKS PURPOSES
4 - PREFACE
5 - CONTENTS
6 - SECTION 1 SCOPE AND GENERAL
6 - 1.1 SCOPE
6 - 1.2 REFERENCED DOCUMENTS
8 - 1.3 DEFINITIONS
8 - 1.3.1 Allowable operating pressure (AOP)
8 - 1.3.2 Allowable site test pressure (ASTP)
8 - 1.3.3 DN (Nominal size)
8 - 1.3.4 dn (Nominal size of connecting pipe)
8 - 1.3.5 Maximum allowable operating pressure (MAOP)
8 - 1.3.6 Maximum operating temperature
8 - 1.3.7 Mechanical tapping band
8 - 1.3.8 Pressure classification (PN)
8 - 1.4 DESIGNATION OF SIZE
8 - 1.5 ALLOWABLE PRESSURES
9 - SECTION 2 MATERIALS
9 - 2.1 MATERIAL REQUIREMENTS
9 - 2.2 DEZINCIFICATION-RESISTANT MATERIALS
10 - 2.3 STAINLESS STEEL
10 - 2.4 PLASTICS MATERIALS
10 - 2.4.1 General
10 - 2.4.2 Moulded-plastics material test
10 - 2.5 COATING
11 - 2.6 ELASTOMERIC SEALS
11 - 2.7 EFFECT ON WATER
12 - SECTION 3 DESIGN
12 - 3.1 TAPPING BAND COMPONENTS
12 - 3.2 FITMENT
12 - 3.3 TAPPING BAND TYPES
12 - 3.3.1 Type F tapping bands
12 - 3.3.2 Type R tapping bands
12 - 3.4 MEANS OF ATTACHMENT
12 - 3.5 FASTENERS
13 - 3.6 OUTLETS
13 - 3.7 BI-METALLIC CONTACT
13 - 3.8 FREEDOM FROM DEFECTS
14 - SECTION 4 TESTING
14 - 4.1 TYPE TESTS
14 - 4.1.1 General
14 - 4.1.2 Assembly test
14 - 4.1.3 Leaktightness test during application of a bending moment to the connecting pipe
14 - 4.1.4 Joint infiltration test
14 - 4.1.5 Hydrostatic leaktightness test
15 - 4.1.6 Resistance to rotation, longitudinal sliding and depressurization
15 - 4.2 BI-METALLIC COUPLE
15 - 4.3 INTEGRATED ASSEMBLY
15 - 4.3.1 Hydraulic performance
15 - 4.3.2 Assessment of cutter efficiency
16 - SECTION 5 MARKING AND PACKAGING
16 - 5.1 MARKING
16 - 5.2 PACKAGING
16 - 5.3 INSTALLATION INSTRUCTIONS AND PIPE COMPATIBILITY
17 - APPENDIX A - COMPLIANCE REQUIREMENTS
17 - A1 SCOPE
17 - A2 PRODUCT CERTIFICATION
17 - A3 MINIMUM SAMPLING AND TESTING FREQUENCY PLAN
17 - A3.1 General
17 - A3.2 Retesting
18 - A3.3 Rejection after retest
18 - A4 DEFINITIONS
18 - A4.1 Tapping band batch
18 - A4.2 Material batch
18 - A4.3 Production shift
18 - A4.4 Lot
18 - A4.5 Sample
18 - A4.6 Sampling plan
18 - A4.7 Batch release test (BRT)
18 - A4.8 Type test (TT)
22 - APPENDIX B - ASSEMBLY TEST
22 - B1 SCOPE AND GENERAL
22 - B1.1 Scope
22 - B1.2 Relevance of test
22 - B2 APPARATUS
22 - B3 PROCEDURE
22 - B3.1 Test specimens
22 - B3.2 Test procedure
23 - B3.3 Report
24 - APPENDIX C - LEAKTIGHTNESS TEST DURING APPLICATION OF A BENDING MOMENT TO THE CONNECTING PIPE
24 - C1 SCOPE AND GENERAL
24 - C1.1 Scope
24 - C1.2 Relevance of test
24 - C2 APPARATUS
24 - C3 PROCEDURE
24 - C3.1 Test specimens
24 - C3.2 Test procedure
25 - C4 REPORT
26 - APPENDIX D - RESISTANCE TO DEPRESSURIZATION AND ROTATIONAL AND SLIDING MOVEMENT
26 - D1 SCOPE AND GENERAL
26 - D1.1 Scope
26 - D1.2 Relevance of test
26 - D2 APPARATUS
26 - D3 PROCEDURE
26 - D3.1 Test specimens
26 - D3.2 Test procedure
27 - D3.3 Resistance to rotational sliding
28 - D3.4 Resistance to axial sliding
28 - D4 REPORT

Abstract

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.

Scope

This Standard 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.
Solvent cemented PVC tapping bands are outside the scope of this Standard.
The nominal size range of tapping bands covered by this Standard is DN 80 to DN 450 with outlet sizes ranging from dn 15 to dn 50, as appropriate to the tapping band size.
Methods of demonstrating compliance with this Standard are given in Appendix A.