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Water supply - Backflow preventions devices Registered air gaps and registered break tanks
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Available format(s): Hardcopy, PDF 1 User, PDF 3 Users, PDF 5 Users, PDF 9 Users
Language(s): English
Published date: 30-06-2010
Publisher: Standards Australia
1 - AS 2845.2-2010 WATER SUPPLY-BACKFLOW PREVENTIONS DEVICES - REGISTERED AIR GAPS AND REGISTERED BREAK TANKS4 - PREFACE5 - CONTENTS6 - FOREWORD7 - 1 SCOPE7 - 2 NORMATIVE REFERENCES7 - 3 DEFINITIONS7 - 3.1 Air gap-Water supply system7 - 3.2 Accessible7 - 3.3 Break tank7 - 3.4 Register7 - 3.5 Spill level8 - 3.6 Storage tank8 - 4 DESIGN8 - 4.1 General8 - 4.2 Break tanks8 - 4.2.1 General9 - 4.2.2 Type A break tank unobstructed air gap9 - 4.2.3 Type B break tank air gap with overflow11 - 4.2.4 Type C break tank air gap with diverter and overflow12 - 4.2.5 Type E hygienic break tank12 - 5 MARKING12 - 5.1 Air gaps12 - 5.2 Break tanks13 - APPENDIX A - STORAGE TANKS-INFLOW AND OVERFLOW METHOD OF CALCULATION13 - A1 GENERAL13 - A2 INFLOW RATE16 - A3 OVERFLOW SIZE AND SPILL LEVEL17 - A4 AIR GAP17 - A5 HEIGHT OF INLET ABOVE INVERT LEVEL OF OVERFLOW
Specifies requirements for registered air gaps including those incorporated in break tanks used as backflow prevention devices for the protection of water supplies.
This Standard specifies requirements for registered air gaps, including those incorporated in break tanks, used as backflow prevention devices for the protection of water supplies.
First published as AS 2845.2-1994.Second edition 1996.Third edition 2010. First published as AS 2845.2-1994. Third edition 2010.
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