Standard
UPDATE AVAILABLE
AS 2845.2-2010
[Superseded]Water supply - Backflow preventions devices, Part 2: Registered air gaps and registered break tanks
AS 2845.2-2010 specifies requirements for registered air gaps including those incorporated in break tanks used as backflow prevention devices for the protection of water supplies.
Published: 30/06/2010
Pages: 12
Table of contents
Cited references
Content history
Table of contents
Header
About this publication
Preface
Foreword
1 Scope
2 Normative references
3 Definitions
4 Design
4.1 General
4.2 Break tanks
4.2.1 General
4.2.2 Type A break tank unobstructed air gap
4.2.3 Type B break tank air gap with overflow
4.2.4 Type C break tank air gap with diverter and overflow
4.2.5 Type E hygienic break tank
5 Marking
5.1 Air gaps
5.2 Break tanks
Appendix A
A1 General
A2 Inflow rate
A3 Overflow size and spill level
A4 Air gap
A5 Height of inlet above invert level of overflow
Cited references in this standard
[Superseded]
Water supply - Backflow prevention devices, Part 3: Field testing and maintenance of testable devices
[Current]
Water supply - Backflow prevention devices, Part 1: Materials, design and performance requirements
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