Standard
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AS 1357.2:2023
[Current]Valves primarily for use in heated water systems, Part 2: Control valves
AS 1357.2:2023 sets out requirements for the design, construction, testing and performance of water valves and devices (vacuum relief valves, thermosiphon arrestor valves, Primary temperature control valve, inlet pressure control valves and Isolating valves). The valves and devices specified in this document are primarily intended for use in a heated water service.
Published: 15/12/2023
Pages: 85
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 Normative references
1.4 Terms and definitions
1.5 Instrumentation
1.6 Marking
2 Materials
2.1 General
2.2 Contamination of water
2.3 Corrosion-resistant metallic materials
2.4 Copper
2.5 Copper alloy
2.6 Dezincification-resistant copper alloy
2.7 Stainless steel
2.8 Diaphragm, materials and valve seats
2.9 Temperature-sensing probe
2.10 Other component materials
3 General design and construction
3.1 General
3.2 Strength
3.2.1 Torque test
3.2.2 Leakage
3.3 End connections
3.4 Components and valve seats
3.5 Repair
3.6 Instructions
4 Vacuum relief valves
4.1 General
4.2 Design
4.3 Inlet and outlet
4.3.1 Inlet
4.3.2 Outlet connection
4.4 Protection against blockage
4.5 Flow passages
4.6 Opening pressure test
4.7 Closing pressure test
4.8 Air-passing capacity test
4.9 Resistance to hot water
4.10 Marking
5 Thermosiphon arrestor valves
5.1 General
5.2 Flow area
5.3 Flow passage
5.4 Closing temperature
5.5 Valve operating characteristics
5.6 Endurance
5.7 Temperature endurance
5.8 Marking
6 Primary temperature control valves
6.1 General
6.2 Inlet and outlet connections
6.3 Design requirements
6.4 Mixed water discharge test — Tempered water range
6.5 Endurance
6.6 Minimum flow requirement
6.7 Marking
6.8 Manufacturer’s instructions
7 Inlet pressure control valves
7.1 General
7.2 Outlet pressure
7.3 Set outlet pressures and ratios
7.4 Flow rates
7.5 Endurance
7.6 Marking
8 Isolating valves
8.1 General
8.2 Minimum flow area
8.3 Width of passages
8.4 Strength of operating mechanism
8.5 Endurance
9 Thermal switching valves
9.1 General
9.2 Inlet and outlet connections
9.3 Design requirements
9.4 Performance requirements
9.4.1 Flow capacity
9.4.2 Leakage rate
9.4.3 Switching time
9.5 Endurance
9.6 Marking
9.7 Manufacturer’s instructions
10 Air eliminators
10.1 General
10.2 Inlet and outlet connections
10.2.1 Inlet
10.2.2 Outlet
10.3 Protection against blockage
10.4 Flow passages
10.5 Opening and closing test
10.6 Pressure test
10.7 Endurance test
10.8 Resistance to hot water
10.9 Marking
Appendix A
A.1 Scope
A.2 Relevance
A.3 Terms and definitions
A.4 Sampling and testing plan
A.5 Testing
A.5.1 Type testing
A.5.2 Batch release testing
A.5.3 Retesting
A.6 Sampling and frequency plans
Appendix B
B.1 General
B.2 Flowmeter for use with air
B.3 Flowmeter for use with water
B.4 Pressure gauges for use with water
B.5 Temperature-indicating and recording devices
B.6 Stopwatch
B.7 Torque applicator
Appendix C
C.1 Scope
C.2 Sound pressure levels
C.2.1 General
C.2.2 Method
Appendix D
D.1 Scope
D.2 Principle
D.3 Apparatus
D.4 Procedure
D.5 Test report
Appendix E
E.1 Scope
E.2 Principle
E.3 Apparatus
E.4 Procedure
E.5 Test report
Appendix F
F.1 Scope
F.2 Principle
F.3 Apparatus
F.4 Pressure drop, temperature variation and outlet flow variation procedure
F.4.1 General
F.4.2 Pressure drop test
F.4.3 Temperature variation test
F.4.4 Outlet flow variation test
F.5 Thermal shut-off
F.6 Mixed water temperature overshoot on starting from ambient
F.7 Test report
Appendix G
G.1 Scope
G.2 Principle
G.3 Apparatus
G.4 Procedure
G.5 Test report
Appendix H
H.1 Scope
H.2 Principle
H.3 Apparatus
H.4 Procedure
H.5 Test report
Appendix I
I.1 Scope
I.2 Principle
I.3 Apparatus
I.4 Flow rate testing procedure
I.5 Test report
Appendix J
J.1 Scope
J.2 Principle
J.3 Apparatus
J.4 Procedure
J.5 Test report
Appendix K
K.1 Scope
K.2 Principle
K.3 Apparatus
K.4 Procedure
K.5 Test report
Appendix L
L.1 Scope
L.2 Principle
L.3 Apparatus
L.4 Procedure
L.5 Test report
Appendix M
M.1 Scope
M.2 Principle
M.3 Apparatus
M.4 Procedure
M.5 Test report
Appendix N
N.1 Scope
N.2 Principle
N.3 Apparatus
N.4 Procedure
N.5 Test report
Appendix O
O.1 Scope
O.2 Principle
O.3 Apparatus
O.4 Procedure
O.5 Test report
Appendix P
P.1 Scope
P.2 Principle
P.3 Apparatus
P.4 Procedure
P.5 Test report
Appendix Q
Q.1 Scope
Q.2 Principle
Q.3 Apparatus
Q.4 Preparation for testing
Q.5 Alternative test method
Q.6 Procedure
Q.7 Alternative procedure
Q.8 Test report
Appendix R
R.1 Scope
R.2 Principle
R.3 Apparatus
R.4 Procedure
R.5 Test report
Appendix S
Appendix T
Appendix U
Appendix V
Appendix W
Appendix X
Appendix Y
Bibliography
Cited references in this standard
ASTM B165
Standard Specification for Nickel-Copper Alloy (UNS N04400)* Seamless Pipe and Tube
ASTM B164
Standard Specification for Nickel-Copper Alloy Rod, Bar, and Wire
ASTM B163
Standard Specification for Seamless Nickel and Nickel Alloy Condenser and Heat-Exchanger Tubes
ASTM B127
Standard Specification for Nickel-Copper Alloy (UNS N04400) Plate, Sheet, and Strip
ASTM A313
Standard Specification for Stainless Steel Spring Wire
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