Standard
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AS/NZS 2033:2024
[Current]Design and installation of polyolefin pipe systems
AS/NZS 2033:2024 specifies requirements for the handling, storage, installation, testing and commissioning of above-ground and below-ground polyolefin pipe systems, for pressure and non-pressure applications conveying fluids.
Published: 26/04/2024
Pages: 79
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 Abbreviations
2 Products and materials
2.1 Scope of section
2.2 Pipe and fittings
2.2.1 Chemical resistance
2.2.2 Permeation
2.2.3 Elastomeric seals
2.2.4 Lubricants for elastomeric seals and expansion joints
2.2.5 UV resistance
2.3 Hangers and clips
2.4 Pipe embedment and trench-fill materials
2.5 Tools and equipment
3 Design
3.1 Scope of section
3.2 Calculation of maximum allowable operating pressures
3.3 Design factors
3.4 Material temperature ratings for pressure pipes
3.5 Surge and fatigue pressure ratings
3.5.1 Operating pressure
3.5.2 Design
3.6 Disinfection effects of polyolefin pipe system materials
3.6.1 General
3.6.2 Polyethylene drinking water pipe systems
3.6.3 Materials used in hot and cold water systems
3.6.4 Polypropylene hot and cold water systems
3.6.5 Secondary disinfection degradation effects
3.7 Seismic risk area design
3.8 External load design
3.9 Effects of sunlight and fire
3.9.1 Effect of sunlight
3.9.2 Effect of fire
4 General requirements
4.1 Scope of section
4.2 Transport, handling and storage
4.2.1 Transport and handling
4.2.2 Storage
4.3 Pre-installation inspection
4.3.1 Correct supply
4.3.2 Cleanliness
4.3.3 Fitness for use
4.4 Protection against damage
4.4.1 General
4.4.2 Protection from heat
4.5 Replacement of metallic water supply pipe systems
4.6 Static electricity
4.7 Temperature considerations
4.7.1 Pressure re-rating due to thermal effects
4.7.1.1 Temperature of pipe wall
4.7.1.2 Predictable temperature variations
4.7.2 Provision for expansion and contraction
4.8 Effect of water hammer or pressure surges
4.9 Buckling under external load and vacuum
5 Jointing methods
5.1 Scope of section
5.2 Fusion joints
5.2.1 General
5.2.2 Electrofusion
5.2.3 Butt welding
5.2.4 Socket fusion
5.2.5 Extrusion welding
5.3 Mechanical fittings
5.3.1 General
5.3.2 Radial and axial press fittings
5.4 Elastomeric seal joints
5.4.1 Application
5.4.2 Procedures
5.4.2.1 Elastomeric seal incorporated in socket
5.4.2.2 Elastomeric seal mounted on spigot end of a corrugated pipe
5.5 Flanged joints
5.5.1 Application
5.5.2 Requirements
5.5.3 Procedure
5.6 Threaded joints
5.6.1 Application
5.6.2 Procedure
5.7 Repair fittings
5.8 Mechanical and flexible couplings
5.9 Service connections
6 Installation of buried pipes and fittings
6.1 Scope of section
6.2 Structural design of buried pipes and fittings
6.2.1 General
6.2.2 Graphical design method
6.2.2.1 Parameters
6.2.2.2 Long term deflection
6.2.3 Engineered structural design method
6.3 Identification of buried pipes
6.4 Installation of buried pipes using trenchless technology
6.5 Pipe installation in a trench
6.5.1 Provision of a trench
6.5.2 Excavation across improved surfaces
6.5.3 Minimum cover
6.5.4 Anchorage
6.5.5 Encasement in concrete
6.5.6 Foundations and foundation stabilization
6.5.7 Prevention of flotation
6.5.8 Trench floor preparation
6.5.9 Placement of bedding
6.5.10 Pipe laying and jointing
6.5.11 Bending of pipes
6.5.12 Pipe embedment
6.5.13 Trench fill
6.5.14 Removal of trench supports, pegs and packing
6.5.15 Marking tape
6.6 Pipe installation in an embankment
7 Installation of pipes above ground
7.1 Scope of section
7.2 Installation requirements
7.2.1 Grade and alignment
7.2.2 Pipe bending
7.2.3 Setting of pipes in concrete
7.2.4 Pipes passing through floors and walls
7.2.5 Pipe installation in a sleeve or duct
7.2.6 Penetration of fire-resistant structures
7.3 Support of pipe systems
7.3.1 Supports
7.3.1.1 General
7.3.1.2 Fixed supports
7.3.1.3 Sliding supports
7.3.2 Spacing of supports
7.3.2.1 Pressure pipes
7.3.2.2 Non-pressure pipes
7.4 Provision for expansion
7.4.1 General
7.4.2 Maximum spacing of expansion joints
7.4.2.1 General
7.4.2.2 Cold and hot pipe systems
7.4.2.2.1 General
7.4.2.2.2 Cold pipe systems
7.4.2.2.3 Hot pipe systems
7.4.2.3 Stacks and vertical pipes
7.4.2.4 Graded pipe systems
7.4.3 Alternative provision for expansion
7.4.4 Installation of expansion joints
7.4.5 Pipes laid on ground
8 Hydrostatic pressure acceptance testing of PO pipe systems
8.1 Test methods
8.1.1 General
8.1.2 Measuring devices
8.2 System test pressure
8.3 Effects of elevation change along the pipe system
8.3.1 Effect of elevation difference on the allowable water loss
8.3.2 Test effectiveness for pipe systems with significant elevation difference
8.4 Testing PE pipes at elevated temperatures
8.5 Pipe system test length
8.6 Rate of filling the pipe system
8.7 Pressure testing personnel and equipment
8.7.1 General requirements
8.7.2 Blank ends
8.7.3 Recording time
8.7.4 Pressure pump
8.7.5 Pressure measurement equipment
8.7.5.1 General requirements
8.7.5.2 Equipment for pressure measurement
8.7.6 Water volume measurement equipment
8.8 Pre-test requirements
8.9 Reporting
8.10 Pressure acceptance test methods
8.10.1 Constant pressure test
8.10.1.1 Background
8.10.1.2 Preliminary phase
8.10.1.3 Main test phase
8.10.1.4 Acceptance criteria
8.10.1.5 Progressive leakage failure indicators
8.10.1.6 Examples of pressure vs time plots of constant pressure test
8.10.2 Pressure rebound test
8.10.2.1 Rebound test limitations
8.10.2.2 Maximum allowable air volume
8.10.2.3 Preliminary (pressure decay) phase
8.10.2.4 Pressure drop phase
8.10.2.5 Rebound (main test) phase
8.10.2.6 Acceptance criteria
8.10.2.7 Progressive leakage failure indicators
8.10.2.8 Rebound pressure test examples
8.10.3 Visual test
8.10.3.1 Background
8.10.3.2 Test method
8.10.3.3 Acceptance criteria
8.11 Testing of non-pressure pipelines
8.11.1 General
8.11.2 Method 1 — Hydrostatic test
8.11.3 Method 2 — Low pressure air test
8.11.4 Method 3 — Vacuum testing
8.12 Deflection testing
8.13 Closed-circuit television inspection
9 Commissioning
10 Compressed gases
10.1 General
10.2 Contents identification
10.3 Pressure rating and temperature re-rating
10.4 Joint types
10.5 Chemical resistance
10.6 Precautions
11 Gaseous fluids
11.1 Fuel gas distribution
11.2 Fuel gas gathering
Appendix A
A.1 General
A.2 Removal of particulate materials
A.3 Pipe disinfection
A.4 Commissioning procedure and acceptance criteria
A.5 Procedure for drinking water supply pipe systems
Appendix B
B.1 Scope of section
B.2 Seismic events
B.3 Resilient design
B.3.1 General
B.3.2 Seismic resilience
B.3.3 Liquefaction zones
B.3.3.1 General
B.3.3.2 General impact on pipe systems
B.3.3.3 Pipes with axial alignment to epicentre
B.3.3.4 Pipes with tangential alignment to epicentre
B.3.4 Installation in liquefaction zones
B.3.5 Lateral spread zones
B.3.6 Active fault zones
B.3.7 Impact of ground shaking without liquefaction, or lateral spread
B.3.8 Service lateral pipes
B.3.9 Pipe embedment in earthquake zones
B.3.10 Seismic resilience in new PE pipe utilities
B.4 References
Bibliography
Cited references in this standard
WSA 05
Conduit inspection reporting code of Australia
EN 681-2
Elastomeric seals - Material requirements for pipe joint seals used in water and drainage applications - Part 2: Thermoplastic elastomers
[Current]
Plastics piping systems for hot and cold water installations - Polybutene (PB) - Part 1: General
[Current]
Plastics piping systems for hot and cold water installations - Crosslinked polyethylene (PE-X) - Part 3: Fittings
[Current]
Plastics piping systems for hot and cold water installations - Polypropylene (PP) - Part 5: Fitness for purpose of the system
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