AS 3496-1999

1 - AS 3496-1999 METAL-BODIED AND PLASTIC-BODIED TAPS
4 - PREFACE
5 - CONTENTS
6 - SECTION 1 SCOPE AND GENERAL
6 - 1.1 SCOPE
6 - 1.2 REFERENCED DOCUMENTS
6 - 1.3 DEFINITIONS
6 - 1.3.1 Component
6 - 1.3.2 Distortion
6 - 1.3.3 Flow regulating tap
6 - 1.3.4 Isolating tap
6 - 1.3.5 Mixing taps mechanical (non-thermostatic)
6 - 1.3.6 Rising spindle tap
7 - 1.3.7 Tap body
7 - 1.3.8 Tap head
7 - 1.3.9 Tapset breaching piece assembly
7 - 1.3.10 Back nut
7 - 1.4 DESIGNATION OF NOMINAL SIZE
7 - 1.5 MARKING
8 - SECTION 2 MATERIALS
8 - 2.1 SCOPE OF SECTION
8 - 2.2 COPPER
8 - 2.3 DEZINCIFICATION-RESISTANT COPPER ALLOY
8 - 2.4 STAINLESS STEEL
8 - 2.5 PLASTIC MATERIALS
8 - 2.6 CONTAMINATION OF WATER
9 - SECTION 3 DESIGN AND MANUFACTURE
9 - 3.1 SCOPE OF SECTION
9 - 3.2 END CONNECTORS
9 - 3.2.1 Threaded-end connectors
9 - 3.2.2 Union-end connectors
9 - 3.2.3 Hose-tap connection ends
9 - 3.2.4 Compression ends
9 - 3.2.5 Capillary ends
9 - 3.2.6 Tubular ends
9 - 3.3 WATER SHUT-OFF DEVICE
9 - 3.4 ACCESSORIES OR COMPONENTS
9 - 3.4.1 General
10 - 3.4.2 Back siphonage
10 - 3.5 THICKNESS OF METAL PARTS
10 - 3.5.1 General
10 - 3.5.2 Tubular components
10 - 3.5.3 Other sections
10 - 3.6 NON-METALLIC BACK NUTS
12 - SECTION 4 PERFORMANCE REQUIREMENTS
12 - 4.1 GENERAL
12 - 4.2 BODY RESISTANCE TO BENDING MOMENT (PLASTIC-BODIED TAPS)
12 - 4.3 FLOW CAPABILITY
12 - 4.4 WATERTIGHTNESS
12 - 4.5 STRENGTH OF METAL-BODIED TAP ASSEMBLY
13 - 4.6 ENDURANCE TEST (TAPS AND JUMPER VALVES)
13 - 4.7 STRENGTH OF BUTTON-OPERATED AND FOOT-OPERATED TAPS
13 - 4.8 STRENGTH OF NON-METALLIC BACK NUTS
13 - 4.9 STRENGTH OF PLASTIC-BODIED TAP ASSEMBLY
13 - 4.10 STRENGTH OF NON-METALLIC NUT AND ASSEMBLY
14 - APPENDIX A - LIST OF REFERENCED DOCUMENTS
15 - APPENDIX B - PLASTIC MATERIALS USED FOR PLASTIC-BODIED TAPS
15 - B1 SCOPE
15 - B2 GENERAL
15 - B3 ACETAL COPOLYMER
15 - B4 UV RESISTANCE
15 - B5 ALKALINE RESISTANCE
16 - APPENDIX C - DETERMINATION OF FLOW CAPABILITY OF TAPS
16 - C1 SCOPE
16 - C2 PRINCIPLE
16 - C3 APPARATUS
16 - C3.1 Water supply system
16 - C3.2 Means of pressure measurement
16 - C3.3 Means of flow rate measurements
16 - C3.4 Timing device
16 - C4 PROCEDURE
17 - C5 TEST REPORT
18 - APPENDIX D - DETERMINATION OF WATERTIGHTNESS
18 - D1 SCOPE
18 - D2 PRINCIPLE
18 - D3 APPARATUS
18 - D3.1 Pressurizing system
18 - D3.2 End connections
19 - D3.3 Pressure gauge
19 - D3.4 Timing device
19 - D3.5 Thermometer
19 - D4 PROCEDURE
19 - D4.1 Hydrostatic test
19 - D4.2 Pneumatic test
20 - D5 TEST REPORT
21 - APPENDIX E - STRENGTH TEST OF METAL-BODIED TAP ASSEMBLIES
21 - E1 SCOPE
21 - E2 PRINCIPLE
21 - E3 APPLICATION
21 - E4 APPARATUS
21 - E4.1 Pressurizing system
21 - E4.2 Test rig
21 - E4.3 Test sample
21 - E4.4 Pressure gauge
21 - E4.5 Thermometer
22 - E4.6 Timing device
22 - E5 PREPARATION OF THE TEST SAMPLE
22 - E5.1 Outlets
22 - E5.2 Additional support
22 - E6 TESTING ENVIRONMENT
22 - E6.1 Safety
22 - E6.2 Plastic components of metal-bodied tap assemblies
22 - E6.3 Metal components of tap assemblies
22 - E7 PROCEDURE
23 - E8 TEST REPORT
24 - APPENDIX F - ENDURANCE TEST FOR TAPS OR JUMPER VALVES
24 - F1 SCOPE
24 - F2 PRINCIPLE
24 - F3 APPLICATION
24 - F4 APPARATUS
24 - F4.1 Test rig
25 - F4.2 Water supply system
25 - F4.3 Pressure gauge
25 - F4.4 Thermometer
25 - F4.5 Timing and control equipment
25 - F4.6 Monitors
25 - F4.7 Temperature of measurement
26 - F5 PROCEDURE
26 - F6 TEST REPORT
28 - APPENDIX G - LOAD TEST FOR BUTTON-OPERATED AND FOOT-OPERATED TAPS
28 - G1 SCOPE
28 - G2 PRINCIPLE
28 - G3 APPARATUS
28 - G4 PROCEDURE
28 - G5 TEST REPORT
29 - APPENDIX H - STRENGTH TEST FOR NON-METALLIC BACK NUTS
29 - H1 SCOPE
29 - H2 PRINCIPLE
29 - H3 APPARATUS
29 - H4 PROCEDURE
29 - H5 TEST REPORT
31 - APPENDIX I - STRENGTH TEST FOR PLASTIC-BODIED TAP ASSEMBLIES
31 - I1 SCOPE
31 - I2 PRINCIPLE
31 - I3 APPLICATION
31 - I4 APPARATUS
31 - I4.1 Pressurizing system
31 - I4.2 Test rig
31 - I4.3 Test sample
31 - I4.4 Pressure gauge
31 - I4.5 Thermometer
32 - I4.6 Timing device
32 - I5 PREPARATION OF THE TEST SAMPLE
32 - I5.1 Outlets
32 - I5.2 Additional support
32 - I6 TESTING ENVIRONMENT
32 - I6.1 Safety
32 - I6.2 Test temperature
32 - I7 PROCEDURE
32 - I8 TEST REPORT
33 - APPENDIX J - STRENGTH TEST FOR CONNECTOR NUTS AND ASSEMBLY
33 - J1 SCOPE
33 - J2 PRINCIPLE
33 - J3 APPARATUS
34 - J4 PROCEDURE
34 - J5 TEST REPORT

Specifies requirements for metallic taps, handsprays, mixing taps, mechanical (non-thermostatic) tap sets and jumper valves in a range of nominal sizes from DN 6 to DN 50 inclusive, with continuous working pressures not exceeding 1.4 MPa and continuous operating temperatures not exceeding 80 degrees Celsius.

This Standard specifies requirements for metallic taps, plastic taps, handsprays, mixing taps mechanical (non-thermostatic), tap sets and jumper valves in a range of nominal sizes from DN 6 to DN 50 inclusive, with continuous working pressures not exceeding 1.4 MPa and continuous operating temperatures not exceeding 80C.This Standard covers the minimum requirements for health and safety and the protection of the environment.

First published as AS 3496-1995.
Second edition 1999.