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AS 4032.2-2005
[Current]Water supply — Valves for the control of hot water supply temperatures, Part 2: Tempering valves and end-of-line temperature-actuated devices
The objective of this Standard is to provide manufacturers with requirements for tempering valves and end-of-line temperature-actuated devices that give reasonable protection to users against exposure to high or excessive fluctuations in mixed water temperatures caused by the following: - Maintaining an outlet temperature within specified limits, including shut-off of the cold water supply. - Closing the outlet when the mixed water temperature exceeds a specified maximum.
Published: 13/12/2005
Pages: 40
Table of contents
Cited references
Content history
Table of contents
Header
About this publication
Preface
1 Scope and general
1.1 Scope
1.2 Application
1.3 Referenced documents
1.4 Definitions
1.5 Instrumentation
1.6 Marking
1.7 Instructions
2 Materials
2.1 General
2.2 Products in contact with water
2.3 Corrosion-resistant metallic materials
2.4 Copper
2.5 Copper alloy
2.6 Dezincification-resistant (DR) copper alloy
2.7 Stainless steel
2.8 Plastic materials
2.8.1 General
2.8.2 Acetal
2.8.3 UV resistance
2.9 Other component materials
3 Design and construction
3.1 General
3.2 Wrenching flats
3.3 Strength
3.3.1 Torque test
3.3.2 Leakage
3.4 End connectors
3.5 Components and valve seats
3.6 Repair
4 Tempering valves
4.1 General
4.2 Inlet and outlet connections
4.3 Design requirements
4.4 Temperature stability of mixed water
4.5 Sequence of tests
4.6 Endurance of thermostatic element and operating mechanism
4.7 Marking
4.8 Manufacturer’s instructions
5 End-of-line temperature-actuated flow devices
5.1 General
5.2 Connections
5.3 Actuating temperature
5.4 Performance
5.4.1 Flow rate
5.4.2 Response
5.5 Endurance
5.6 Marking
5.7 Manufacturer’s instructions
Appendix A
A1 Scope
A2 Relevance
A3 Product certification
A4 Definitions
A5 Testing
A5.1 Type testing
A5.2 Batch release testing
A5.3 Retesting
Appendix B
B1 General
B2 Flowmeter (for use with water)
B3 Pressure gauges (for use with water)
B4 Temperature-indicating and recording devices
B5 Timing device
B6 Torque applicator
B7 Temperature sensors
Appendix C
C1 Scope
C2 Principle
C3 Apparatus
C4 Procedure
C5 Test report
Appendix D
D1 Scope
D2 Principle
D3 Apparatus
D4 Procedure
D4.1 General
D4.2 Ambient temperature hydrostatic test
D4.3 Operating temperature hydrostatic test
D4.4 Integral cross-flow prevention devices
D5 Report
Appendix E
Appendix F
F1 Scope
F2 Principle
F3 Apparatus
F4 Pressure drop, temperature variation and outlet flow variation procedure
F4.1 General
F4.2 Pressure drop test (concurrent with Paragraph F4.1 and Table F1)
F4.3 Temperature variation test (concurrent with Paragraph F4.1 and Table F2)
F4.4 Outlet flow variation test (concurrent with Paragraph F4.1 and Table F3)
F5 Thermal shut-off
F6 Mixed water temperature overshoot on starting from ambient
F7 Report
Appendix G
G1 Scope
G2 Principle
G3 Apparatus
G4 Procedure
G5 Report
Appendix H
H1 Scope
H2 Principle
H3 Apparatus
H4 Procedure (see Figure H1)
H4.1 Flow rate
H4.2 Response
H4.3 Endurance
H5 Report
Appendix I
I1 Scope
Appendix J
J1 Scope
Amendment control sheet
Cited references in this standard
[Superseded]
Pipe threads of Whitworth form, Part 1: Sealing pipe threads (metric units)
Content history
[Current]
[Current]
[Superseded]
AS 4032.2-2005 Rec:2015
DR 05294
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