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Table of Contents
Section 1 Scope And General
1.1 Scope
1.2 Application
1.3 Referenced Documents
1.4 Definitions
1.5 Tolerances
1.6 Instrumentation
1.7 Pressure Rating
Section 2 Materials
2.1 General
2.2 Components
2.3 Springs And Circlips
2.4 Stainless Steel
2.5 Filler Metals
2.6 Nickel-Copper-Iron
2.7 Ferrous Materials
2.8 Aluminium Alloys
2.9 Corrosion-Resistant Metallic Materials
2.10 Plastics
2.11 Contamination Of Water
Section 3 Common Design And Performance Requirements
3.1 General
3.2 Pressure And Temperature Ranges
3.3 Design
3.4 End Connections
3.5 Non-Return Valves
3.6 Structural Tests
3.7 Test Sequence
Section 4 Atmospheric Vacuum Breakers (AVB)
4.1 General
4.2 Application
4.3 Components
4.4 Specific Design Requirements
4.5 Performance Tests
Section 5 Hose Connection Vacuum Breakers (HCVB)
5.1 General
5.2 Application
5.3 Components
5.4 Specific Design Requirements
5.5 Performance Tests
Section 6 Dual Check Valves With Atmospheric Port (DCAP)
6.1 General
6.2 Application
6.3 Components
6.4 Specific Design Requirements
6.5 Performance Tests
Section 7 Dual Check Valves (Dual CV)
7.1 General
7.2 Application
7.3 Components
7.4 Performance Tests
Section 8 Dual Check Valve With Intermediate Vent (Du CV)
8.1 General
8.2 Application
8.3 Components
8.4 Specific Design Requirements
8.5 Performance Tests
Section 9 Pressure Type Vacuum Breakers (PVB)
9.1 General
9.2 Application
9.3 Components
9.4 Specific Design Requirements
9.5 Performance Tests
Section 10 Double Check Valves (DCV)
10.1 General
10.2 Application
10.3 Components
10.4 Specific Design Requirements
10.5 Performance Tests
Section 11 Double Check Detector Assembly (DCDA)
11.1 General
11.2 Application
11.3 Components
11.4 Performance Test
Section 12 Reduced Pressure Zone Devices (RPZD)
12.1 General
12.2 Application
12.3 Components
12.4 Specific Design Requirements
12.5 Performance Tests
Section 13 Reduced Pressure Detector Assembly (RPDA)
13.1 General
13.2 Application
13.3 Components
13.4 Performance Test
Section 14 Vacuum Breaker Check Valve (VBCV)
14.1 General
14.2 Application
14.3 Components
14.4 Specific Design Requirements
14.5 Performance Tests
Section 15 Anti-Spill Pressure Vacuum Breaker (APVB)
15.1 General
15.2 Application
15.3 Components
15.4 Specific Design Requirements
15.5 Performance Tests
Section 16 Beverage Dispenser Dual Check Valve With Atmospheric Port (BDDC)
16.1 General
16.2 Application
16.3 Components
16.4 Specific Design Requirements
16.5 Performance Tests
Section 17 Installation Instructions And Marking
17.1 Installation Instructions
17.2 Maintenance Instructions
17.3 Marking Requirements
17.4 Additional Marking
Appendices
Appendix A - Referenced Documents
Appendix B - Instrumentation Requirements
Appendix C - Torque Test On Screwed End Valves
Appendix D - Test For Ability To Withstand Continuous Pressure - Devices Intended For ## Hot Water Application
Appendix E - Positive Pressure Test
Appendix F - Reverse Pressure Test
Appendix G - Airport Opening Area Test - Atmospheric Vacuum Breakers, Vacuum Breaker Check Valves And Pressure Type Vacuum
Appendix H - Water Rise Test - Atmospheric Vacuum Breakers, Pressure Type Vacuum ## Breakers And Anti-Spill Pressure Vacuum Breaker
Appendix I - Fouling Wire Sizes
Appendix J - Endurance Test - Atmospheric Vacuum Breakers
Appendix K - Test For Rated Flow And Pressure Loss
Appendix L - Ventilation Valve Leakage Test - Atmospheric Vacuum Breakers
Appendix M - Determination Of Critical Level Atmospheric Vacuum Breakers, Pressure Type Vacuum Breakers And Anti-Spill Pressure
Appendix N - Test For Leakage From Airports Hose Connection Vacuum Breakers And Dual Check Valves With Intermediate Vents
Appendix O - Test For Resistance To Bending - Hose Connection Vacuum Breakers
Appendix P - Test For Resistance And Relief Of Back Pressure - Hose Connection Vacuum Breakers
Appendix Q - Back Pressure Test - Hose Connection Vacuum Breakers And Vacuum Breaker Check Valves
Appendix R - Test For Back Siphonage - Hose Connection Vacuum Breakers, And Dual Check Valves With Atmospheric Port And Vacuum
Appendix S - Test For Rated Water Flow Capacity And Pressure Loss - Hose Connection Vacuum Breakers
Appendix T - Endurance Test - Hose Connection Vacuum Breakers
Appendix U - Non-Return Valve Closing Pressure Test
Appendix V - Test For Leakage From Airports - Dual Check Valves With Atmospheric Port And Beverage Dispenser Dual Check Valves
Appendix W - Test For Backflow Through Upstream Non-Return Valve - Dual Check Valves With Atmospheric Port And Beverage Dispense
Appendix X - Ventilation Valve Opening Pressure Test - Dual Check Valves With Atmospheric Port And Beverage Dispenser Dual Check
Appendix Y - Test For Back Siphonage Under Back Pressure - Dual Check Valves With Atmospheric Port
Appendix Z - Testing Installation For Tests In Appendices E, K, M, L, S And Aa
Appendix Aa - Test For Flow Rate At Low Supply Pressure - Dual Check Valves With Atmospheric Port
Appendix Ab - Endurance Test - Dual Check Valves With Atmospheric Port
Appendix Ac - Endurance Test - Double Check Valve, Dual Check Valve, Dual Check Valve With Intermediate Vent And Beverage
Appendix Ad - Back Siphonage Test - Dual Check Valves With Intermediate Vent
Appendix Ae - Ventilation Valve Opening Pressure Test Pressure Type Vacuum Breakers, Vacuum Breaker Check Valves And Anti-Spill
Appendix AF - Endurance Test - Pressure Type Vacuum Breakers
Appendix Ag - Intermediate Chamber Pressure Test - Reduced Pressure Zone Devices
Appendix Ah - Determination Of Supply Pressure At Which Pressure In The Intermediate Chamber Becomes Atmospheric - Reduced
Appendix Ai - Determination Of Intermediate Chamber Pressure Under Back Pressure Conditions When The Supply Pressure Is 14kpa Or
Appendix AJ - Determination Of Intermediate Chamber Pressure Under Backpressure Conditions When The Supply Pressure Is Less Than
Appendix AK -Determination Of Pressure Differential At Which Relief Valve Commences To Open - Reduced Pressure Zone Devices
Appendix Al -Test For Effect Of Supply Pressure Fluctuation On Discharge From Relief Valve - Reduced Pressure Zone Devices
Appendix Am - Back Siphonage Test - Reduced Pressure Zone Devices
Appendix An - Back Pressure Test - Reduced Pressure Zone Devices
Appendix AO - Endurance Test - Reduced Pressure Zone Devices
Appendix AP - Endurance Test - Vacuum Breaker Check Valve
Appendix AQ - Adhesion Test - Resilient Seat Material
Appendix AR - Air Port Entry Sealing Test Anti-Spill Pressure Vacuum Breakers
Appendix As - Back Siphonage Test - Beverage Dispenser Dual Check Valve With Atmospheric Port (BDDC)
Appendix At - Endurance Test - Beverage Dispenser Dual Check Valves With Atmospheric Port
Appendix Au - Miscellaneous Guidelines
