AS 1357.2-1998

1 - AS 1357.2-1998 VALVES PRIMARILY FOR USE IN WARM AND HOT WATER SYSTEMS - CONTROL VALVES
4 - PREFACE
5 - CONTENTS
8 - SECTION 1 SCOPE AND GENERAL
8 - 1.1 SCOPE
8 - 1.2 REFERENCED DOCUMENTS
9 - 1.3 DEFINITIONS
9 - 1.3.1 Distortion
9 - 1.3.2 Inlet pressure control valve
9 - 1.3.3 Pressure
9 - 1.3.4 Rated capacity
9 - 1.3.5 Temperature
9 - 1.3.6 Thermosiphon arrestor valve
9 - 1.4 INSTRUMENTATION
10 - 1.5 TOLERANCES
10 - 1.6 MARKING
11 - SECTION 2 MATERIALS
11 - 2.1 GENERAL
11 - 2.2 COPPER ALLOY MATERIALS
11 - 2.3 DIAPHRAGM MATERIALS AND VALVE SEATS
11 - 2.4 SPRING MATERIALS
11 - 2.5 CONTAMINATION OF WATER
12 - SECTION 3 GENERAL DESIGN AND CONSTRUCTION
12 - 3.1 GENERAL
12 - 3.2 STRENGTH
12 - 3.2.1 Torque test
12 - 3.2.2 Leakage
12 - 3.3 END CONNECTIONS
12 - 3.4 COMPONENTS AND VALVE SEATS
12 - 3.5 REPAIR
12 - 3.6 FLOW MARKING
12 - 3.7 INSTRUCTIONS
13 - SECTION 4 VACUUM RELIEF VALVES
13 - 4.1 GENERAL
13 - 4.2 DESIGN
13 - 4.3 INLET AND OUTLET
13 - 4.3.1 Inlet
13 - 4.3.2 Outlet connection
13 - 4.4 PROTECTION AGAINST BLOCKAGE
13 - 4.5 FLOW PASSAGES
13 - 4.6 OPENING PRESSURE TEST
13 - 4.7 CLOSING PRESSURE TEST
13 - 4.8 AIR-PASSING CAPACITY TEST
13 - 4.9 RESISTANCE TO HOT WATER
13 - 4.10 MARKING
14 - SECTION 5 THERMOSIPHON ARRESTOR VALVES
14 - 5.1 GENERAL
14 - 5.2 INLET, OUTLET AND SUPPLY CONNECTIONS
14 - 5.3 FLOW AREA
14 - 5.4 FLOW PASSAGE
14 - 5.5 CLOSING TEMPERATURE
14 - 5.6 VALVE OPERATING CHARACTERISTICS
14 - 5.7 ENDURANCE
14 - 5.8 TEMPERATURE ENDURANCE
14 - 5.9 MARKING
15 - SECTION 6 TEMPERING VALVES
15 - 6.1 GENERAL
15 - 6.2 INLET AND OUTLET CONNECTIONS
15 - 6.3 MINIMUM CROSS-SECTIONAL AREA OF THE CONNECTION
15 - 6.4 TOTAL FLOW AREA
15 - 6.5 FLOW PASSAGES
15 - 6.6 TEMPERATURE REQUIREMENTS
15 - 6.7 DESIGN REQUIREMENTS
15 - 6.8 MIXED WATER DISCHARGE TEST-TEMPERED WATER RANGE
16 - 6.9 THERMAL SHUT-OFF
16 - 6.10 ENDURANCE
16 - 6.11 MARKING
16 - 6.12 MANUFACTURER'S INSTRUCTIONS
16 - 6.13 PACKAGING
17 - SECTION 7 INLET PRESSURE CONTROL VALVES
17 - 7.1 GENERAL
17 - 7.2 INLET AND OUTLET CONNECTIONS
17 - 7.3 MINIMUM CROSS-SECTIONAL AREA OF THE CONNECTION
17 - 7.4 OUTLET PRESSURE
17 - 7.5 PREFERRED SET OUTLET PRESSURES AND RATIOS
17 - 7.6 FLOW RATE
17 - 7.7 ENDURANCE
17 - 7.8 MARKING
18 - SECTION 8 END-OF-LINE TEMPERATURE-ACTUATED FLOW DEVICES
18 - 8.1 GENERAL
18 - 8.2 CONNECTIONS
18 - 8.3 ACTUATING TEMPERATURE
18 - 8.4 PERFORMANCE
18 - 8.4.1 Flow rate
18 - 8.4.2 Response
18 - 8.5 ENDURANCE
18 - 8.6 MARKING
18 - 8.7 MANUFACTURER'S INSTRUCTIONS
20 - SECTION 9 ISOLATING VALVES
20 - 9.1 GENERAL
20 - 9.2 INLET AND OUTLET DETAILS
20 - 9.2.1 Inlet and outlet connections
20 - 9.2.2 Minimum flow area
20 - 9.2.3 Width of passages
20 - 9.3 TORQUE TEST
20 - 9.4 ENDURANCE
20 - 9.5 SPECIFIC DESIGN REQUIREMENT
21 - APPENDIX A - INSTRUMENTATION
21 - A1 GENERAL
21 - A2 FLOWMETER (for use with air)
21 - A3 FLOWMETER (for use with water)
21 - A4 PRESSURE GAUGES (for use with water)
21 - A5 TEMPERATURE-INDICATING AND RECORDING DEVICES
21 - A6 STOPWATCH
21 - A7 TORQUE APPLICATOR
22 - APPENDIX B - MEASUREMENT OF NOISE EMISSION
22 - B1 SCOPE
22 - B2 SOUND PRESSURE LEVELS
22 - B2.1 General
22 - B2.2 Method
23 - APPENDIX C - LEAKAGE TEST
23 - C1 SCOPE
23 - C2 PRINCIPLE
23 - C3 APPARATUS
23 - C4 PROCEDURE
24 - C5 REPORT
25 - APPENDIX D - OPENING PRESSURE AND AIR-PASSING CAPACITY TEST- VACUUM RELIEF VALVES
25 - D1 SCOPE
25 - D2 PRINCIPLE
25 - D3 APPARATUS
26 - D4 PROCEDURE (Figure D1)
26 - D5 REPORT
27 - APPENDIX E - CLOSING TEMPERATURE AND FLOW AREA TEST-THERMOSIPHON ARRESTOR VALVES
27 - E1 SCOPE
27 - E2 PRINCIPLE
27 - E3 APPARATUS
28 - E4 PROCEDURE (see Figure E1)
28 - E5 REPORT
29 - APPENDIX F - ENDURANCE TEST-THERMOSIPHON ARRESTOR VALVES AND TEMPERING VALVES
29 - F1 SCOPE
29 - F2 PRINCIPLE
29 - F3 APPARATUS
31 - F4 PROCEDURE
31 - F5 REPORT
32 - APPENDIX G - TEMPERATURE ENDURANCE TEST-THERMOSIPHON ARRESTOR VALVES
32 - G1 SCOPE
32 - G2 PRINCIPLE
32 - G3 APPARATUS
32 - G4 PROCEDURE
32 - G5 REPORT
33 - APPENDIX H - MIXED WATER DISCHARGE TEST-TEMPERING VALVES
33 - H1 SCOPE
33 - H2 PRINCIPLE
33 - H3 APPARATUS
34 - H4 PROCEDURE (see Figure H1)
34 - H5 REPORT
36 - APPENDIX I - INFORMATION ON SCALDS FROM HOT WATER
37 - APPENDIX J - OUTLET PRESSURE TEST-INLET PRESSURE CONTROL VALVES
37 - J1 SCOPE
37 - J2 PRINCIPLE
37 - J3 APPARATUS
37 - J4 PROCEDURE (see Figure J1)
38 - J5 REPORT
39 - APPENDIX K - FLOW RATE TEST-INLET PRESSURE CONTROL VALVES
39 - K1 SCOPE
39 - K2 PRINCIPLE
39 - K3 APPARATUS
39 - K4 PROCEDURE (see Figure K1)
39 - K5 REPORT
40 - APPENDIX L - ENDURANCE TEST-INLET PRESSURE CONTROL VALVES
40 - L1 SCOPE
40 - L2 PRINCIPLE
40 - L3 APPARATUS
41 - L4 PROCEDURE (see Figure L1)
41 - L5 REPORT
42 - APPENDIX M - PERFORMANCE AND ENDURANCE TEST-END-OF-LINE TEMPERATURE-ACTUATED FLOW DEVICES
42 - M1 SCOPE
42 - M2 PRINCIPLE
42 - M3 APPARATUS
43 - M4 PROCEDURE (see Figure M1)
43 - M4.1 Flow rate
43 - M4.2 Response
43 - M4.3 Endurance
43 - M5 REPORT
45 - APPENDIX N - TORQUE TEST-ISOLATING VALVES
45 - N1 SCOPE
45 - N2 PRINCIPLE
45 - N3 APPARATUS
45 - N4 PROCEDURE
46 - N5 REPORT
47 - APPENDIX O - ENDURANCE TEST-ISOLATING VALVES
47 - O1 SCOPE
47 - O2 PRINCIPLE
47 - O3 APPARATUS
47 - O4 PROCEDURE
47 - O5 REPORT
48 - APPENDIX P - SPECIFIC DESIGN TEST-ISOLATING VALVES
48 - P1 SCOPE
48 - P2 PRINCIPLE
48 - P3 APPARATUS
48 - P4 PROCEDURE
48 - P5 TEST REPORT

Specifies requirements for the design, construction and performance of vacuum relief valves, thermosyphon arrestor valves, tempering valves, end-of-line temperature-actuated devices and isolating valves primarily for use in warm and hot water systems.

This Standard sets out requirements for the design, construction, testing and performance of the following types of water valves and devices:(a) Vacuum relief valves.(b) Thermosiphon arrestor valves.(c) Tempering valves.(d) Inlet pressure control valves.(e) End-of-line temperature-actuated devices.(f) Isolating valves.The valves and devices specified in this Standard are primarily intended for use in warm and hot water systems which are required to operate at-(i) continuous operating temperature not exceeding 85C;(ii) temperatures under emergency conditions, not exceeding 99C; and(iii) continuous working pressure not exceeding 1400 kPa.NOTE: For valves used with water heaters which are intended to operate at temperatures above 99C (e.g. hot water boilers), see AS 1271.

First published as part of AS B271-1968.
Revised and redesignated AS 1357-1972.
Revised and redesignated in part as AS 1357.2-1988.
Second edition 1992.
Third edition 1998.