AS 4032.1-2002

1 - AS 4032.1:2002 WATER SUPPLY - VALVES FOR THE CONTROL OF HOT WATER SUPPLY TEMPERATURES - THERMOSTATIC MIXING VALVES - MATE...
4 - PREFACE
5 - CONTENTS
7 - FOREWORD
8 - SECTION 1 SCOPE AND GENERAL
8 - 1.1 SCOPE
8 - 1.2 APPLICATION
8 - 1.3 REFERENCED DOCUMENTS
9 - 1.4 DEFINITIONS
9 - 1.4.1 Cyclic actuator
9 - 1.4.2 Dynamic pressure ratio
9 - 1.4.3 Temperature control
9 - 1.4.4 Thermal shut-off
9 - 1.4.5 Thermostatic mixing valve
9 - 1.4.6 Unequal dynamic pressures
9 - 1.4.7 Water volume control
9 - 1.5 DESIGNATION
10 - 1.6 INSTRUCTIONS
10 - 1.7 PRODUCT DATA
10 - 1.8 MARKING
11 - SECTION 2 MATERIALS
11 - 2.1 SCOPE OF SECTION
11 - 2.2 COPPER ALLOY MATERIAL
11 - 2.3 CONTAMINATION OF WATER
12 - SECTION 3 DESIGN AND CONSTRUCTION
12 - 3.1 GENERAL
12 - 3.2 END CONNECTORS
12 - 3.3 LIMITATION OF TEMPERATURE ADJUSTMENT
12 - 3.4 CROSS-FLOW PREVENTION DEVICES
12 - 3.5 ISOLATING VALVES
13 - SECTION 4 PERFORMANCE REQUIREMENTS
13 - 4.1 GENERAL
13 - 4.2 TORQUE TESTS
13 - 4.3 WATERTIGHTNESS AT AMBIENT TEMPERATURE
13 - 4.4 ENDURANCE OF THERMOSTATIC ELEMENT AND OPERATING MECHANISM INCLUDING THERMAL SHUT-OFF
13 - 4.5 SENSITIVITY OF TEMPERATURE CONTROL
14 - 4.6 TEMPERATURE STABILITY OF MIXED WATER
14 - 4.7 WATERTIGHTNESS AT OPERATING TEMPERATURE
14 - 4.8 FINAL TESTS
15 - SECTION 5 PERFORMANCE TESTS
15 - 5.1 SEQUENCE
15 - 5.2 PARAMETERS
15 - 5.3 APPARATUS
15 - 5.4 THERMOSTATIC ELEMENT/SENSOR AND OPERATING MECHANISM
15 - 5.5 ISOLATION VALVES, CROSS-FLOW PREVENTION DEVICES AND CONTROL VALVES
18 - APPENDIX A - COMMISSIONING, MAINTENANCE AND INSTALLATION INSTRUCTIONS
18 - A1 INSTALLATION INSTRUCTIONS
18 - A2 COMMISSIONING INSTRUCTIONS
19 - A3 MAINTENANCE INSTRUCTIONS
20 - APPENDIX B - MEASUREMENT OF NOISE EMISSION
20 - B1 SCOPE
20 - B2 SOUND PRESSURE LEVELS
21 - APPENDIX C - WATER VOLUME CONTROL TORQUE TEST
21 - C1 SCOPE
21 - C2 PRINCIPLE
21 - C3 APPARATUS
21 - C4 PROCEDURE
22 - C5 REPORT
23 - APPENDIX D - TEMPERATURE STOP/OVERRIDE CONTROL TORQUE TEST
23 - D1 SCOPE
23 - D2 PRINCIPLE
23 - D3 APPARATUS
23 - D4 PROCEDURE
24 - D5 REPORT
25 - APPENDIX E - WATERTIGHTNESS TEST
25 - E1 SCOPE
25 - E2 PRINCIPLE
25 - E3 APPARATUS
25 - E4 PROCEDURE
26 - E5 REPORT
27 - APPENDIX F - ENDURANCE TESTING OF THERMOSTATIC ELEMENT/SENSOR AND OPERATING MECHANISM TEST
27 - F1 SCOPE
27 - F2 PRINCIPLE
27 - F3 APPARATUS
28 - F4 PROCEDURE (see Appendix K)
29 - F5 REPORT
31 - APPENDIX G - SENSITIVITY OF TEMPERATURE CONTROL TEST
31 - G1 SCOPE
31 - G2 PRINCIPLE
31 - G3 APPARATUS
31 - G4 PROCEDURE (see Appendix K)
32 - G5 REPORT
33 - APPENDIX H - TEMPERATURE STABILITY OF MIXED WATER TEST
33 - H1 SCOPE
33 - H2 PRINCIPLE
33 - H3 APPARATUS
33 - H4 PROCEDURE (see Appendix K)
35 - H5 REPORT
38 - APPENDIX I - APPARATUS FOR TEST RIGS
38 - I1 SCOPE
38 - I2 WATER SUPPLY
38 - I3 FLOW-MEASURING DEVICES
38 - I4 PRESSURE-MEASURING DEVICES
38 - I5 TEMPERATURE-MEASURING DEVICES
38 - I6 RECORDING EQUIPMENT
38 - I7 TORQUE APPLICATOR
38 - I8 PROTRACTOR
38 - I9 MEASURING CONTAINER
39 - APPENDIX J - PIPEWORK FOR TEST RIGS
39 - J1 SCOPE
39 - J2 PIPEWORK DIMENSIONS
39 - J3 THERMAL INSULATION
39 - J4 PRESSURE TAKE-OFF TEES
39 - J5 TEMPERATURE TAKE-OFF POINTS
39 - J6 INLET ADAPTORS AND CONNECTORS
39 - J7 OUTLET ADAPTOR
40 - APPENDIX K - TYPICAL TEST RIG FOR PERFORMANCE TESTS

Specifies requirements for the design, construction, testing and performance of thermostatic mixing valves of nominal sizes not larger than DN 32, for use with hot water at a supply temperature not exceeding 90 degrees Celsius, and hot and cold water with continuous working pressures not exceeding 1400 kPa.

This Standard specifies requirements for the design, construction, testing and performanceof thermostatic mixing valves of nominal sizes not larger than DN 32, for use with hotwater at a supply temperature not exceeding 90C, and hot and cold water with continuousworking pressures not exceeding 1400 kPa.The principal element of the testing procedures is that the thermostatic mixing valve undertest does not permit the discharge of water from the outlet with a temperature more than2C in excess of the nominated discharge temperature. Discharges of water with atemperature in excess of 2C, which comply with the cumulative time/temperature factorsgiven in Table 4.1, are acceptable.NOTE: Manufacturers may negotiate with the certifying body on hot water supply temperaturesup to 99C, or hot and cold water continuous working pressures greater than 1400 kPa or both, if considered desirable, to assess temperature stability of the mixed water (see Clauses 1.7 and 5.2).

First published as AS 4032-1992.
Second edition 1995.
Third eidition 1998.
Revised and redesignated as AS 4032.1-2002.