🔍
Purchase the full subscription package now and enjoy a 40% discount, along with free updates for future editions.
AS/NZS 4998:2009
$125.14
Bolted unrestrained mechanical couplings for waterworks purposes
Specifies requirements for unrestrained mechanical couplings for waterworks purposes.
Table of contents
Header
About this publication
Preface
1 Scope and general
1.1 Scope
1.2 Referenced documents
1.3 Definitions
1.4 Designation of size
1.5 Classification
1.6 Allowable pressures
2 Materials
2.1 Material requirements
2.2 Dezincification-resistant copper alloys
2.3 Polymeric systems
2.3.1 General
2.3.2 Polymeric coatings
2.4 Elastomeric seals
2.5 Effect on water
3 Design, manufacture and operational limitations
3.1 Design
3.2 Dimensions
3.3 Freedom from defects
3.4 Nominal joint deflection
3.5 Nominal pipe setting gap
3.6 Component jointing
3.6.1 Leaktightness
3.6.2 Fasteners
3.7 Welding
3.7.1 Carbon steel
3.7.2 Stainless steel
4 Testing
4.1 Type tests
4.1.1 General
4.1.2 Hydrostatic leaktightness test
4.1.3 Joint infiltration test
4.1.4 Assembly test
4.2 Polymeric coating tests
5 Marking and packaging
5.1 Marking
5.2 Packaging
5.3 Installation instructions
Appendix A
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
Appendix B
Cited references in this standard
Content history
DR 06685
AS/NZS 4998:2009 REC:2022
Please select a variation to view its description.
| Published | 31/03/2009 |
|---|---|
| Pages | 19 |
Please select a variation to view its pdf.
