Standard
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AS 4793:2020
[Current]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 water mains.
Published: 17/01/2020
Pages: 26
Table of contents
Cited references
Content history
Table of contents
Header
About this publication
Preface
1 Scope and general
1.1 Scope
1.2 Normative references
1.3 Terms and definitions
1.4 Designation of size
1.5 Allowable pressures
2 Materials
2.1 Material requirements
2.2 Dezincification-resistant materials
2.3 Stainless steel
2.4 Plastics materials long term performance
2.5 Coating
2.6 Elastomeric seals
2.7 Effect on water
3 Design
3.1 Tapping band components
3.2 Plastics tapping bands
3.3 Fitment
3.4 Tapping band types
3.4.1 Type F tapping bands
3.4.2 Type R tapping bands
3.5 Means of attachment
3.6 Fasteners
3.7 Outlets
3.8 Bi-metallic contact
3.9 Freedom from defects
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 Short-term hydrostatic leaktightness test
4.1.6 Long-term hydrostatic leaktightness test for plastics tapping bands
4.1.7 Resistance to rotation, longitudinal sliding and depressurization test
4.2 Bi-metallic couple test
4.3 Integrated assembly
4.3.1 Hydraulic performance
4.3.2 Assessment of cutter efficiency
4.4 Manufacturing process test
5 Marking and packaging
5.1 Marking
5.2 Packaging
5.3 Installation instructions
Appendix A
A.1 Scope and general
A.1.1 Scope
A.1.2 General
A.2 Testing
A.2.1 General
A.2.2 Testing
A.2.3 Retesting
Appendix B
B.1 Scope and general
B.1.1 Scope
B.1.2 General
B.2 Apparatus
B.3 Material
B.4 Procedure
B.5 Test report
Appendix C
C.1 Scope and general
C.1.1 Scope
C.1.2 General
C.2 Apparatus
C.3 Material
C.4 Procedure
C.5 Test report
Appendix D
D.1 Scope and general
D.1.1 Scope
D.1.2 General
D.2 Apparatus
D.3 Material
D.4 Procedure
D.4.1 Resistance to rotational sliding
D.4.2 Resistance to axial sliding
D.5 Test report
Appendix E
E.1 Scope and general
E.1.1 Scope
E.1.2 General
E.2 Apparatus
E.3 Materials
E.4 Procedure
E.5 Test report
Bibliography
Cited references in this standard