Standard
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AS 4567-2005
[Current]Twin wall metal flues — Gas appliances
Provides manufacturers, designers, regulatory authorities, testing laboratories and similar organizations with uniform minimum requirements for the safety, performance and use of twin wall metal flues. These requirements cover twin wall flue and components, excluding flue cowls (refer AS 4566), used for flueing gas appliances with a maximum flue gas temperature of 270 degrees Celsius.
Published: 21/02/2005
Pages: 27
Table of contents
Cited references
Content history
Table of contents
Header
About this publication
Preface
1 General
1.1 Scope
1.2 Classification
1.3 Definitions
2 Design and construction
2.1 Materials
2.1.1 Non-combustible and corrosion-resistant
2.1.2 Sheet metal thickness
2.1.3 Aluminium alloys
2.1.4 Durability and resistance
2.2 Construction
2.3 Design
2.3.1 Nominal cross-sectional
2.3.2 Minimum wall gap
2.3.3 Joints
2.3.4 Top plate supports and spacers
2.3.5 Ready attachment
2.3.6 Definite relationship between flue parts
2.3.7 Assembly by manufacturers
2.3.8 Spacer strength
2.3.9 Securing supports
2.3.10 Use of screws
2.3.11 Damage free
2.4 Markings
2.5 Instructions
3 Requirements for Type 1 twin wall flues
3.1 Components
3.2 Sizes
3.2.1 Inner conduit dimensions
3.2.2 External dimensions
3.2.3 Dimensions diagram
3.3 Support plates
3.3.1 Top plate supports
3.3.2 Header plates
3.4 Flue connection elbow and elbow housing
3.4.1 Flue connection elbow
3.4.2 Flue connection elbow housing
4 Requirements for Type 2 twin wall flues
4.1 Components
4.2 Sizes
4.2.1 Inner conduit dimensions
4.2.2 External dimensions
4.2.3 Internal minimum
4.2.4 Dimensions diagram
4.3 Support plates
4.3.1 Top plate supports
4.3.2 Header plates
4.4 Flue connection elbow and elbow housing
4.4.1 Flue connection elbow
4.4.2 Flue connection elbow housing
5 Requirements for Type 3 twin wall flues
5.1 Components
5.2 Sizes
6 Performance
6.1 General
6.2 Operating characteristics
6.2.1 Adjacent surface temperature
6.2.2 Temperature test outcomes
6.3 Mechanical strength
6.3.1 Joint separation
6.3.2 Impact damage
Appendix A
Appendix B
B1 M.O.T. 2.4 – 88 markings and labels
B1.1 Scope
B1.2 Method
B1.3 Apparatus
B1.4 Materials
B1.5 Procedure
B1.6 Result
B2 M.O.T. 6.2-1–94 temperature hazard and heat resistance (Type 1 and Type 2)
B2.1 Scope
B2.2 Method
B2.3 Apparatus
B2.4 Preparation of apparatus
B2.5 Procedure
B2.6 Result
B3 M.O.T. 6.2-2-94 temperature hazard and heat resistance (Type 3)
B3.1 Scope
B3.2 Method
B3.3 Apparatus
B3.4 Preparation of apparatus
B3.5 Procedure
B3.6 Result
B4 M.O.T. 6.3.2 – 88 impact resistance
B4.1 Scope
B4.2 Method
B4.3 Apparatus
B4.4 Preparation of apparatus
B4.5 Procedure
B4.6 Result
Appendix C
Cited references in this standard
Content history
AG 605-1994
AS 4567-2005 REC:2017
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