AWWA ACE70931
AWWA ACE70931 Backflow Prevention Assembly Installation Criteria
Conference Proceeding by American Water Works Association, 11/01/2009
Ahlee, Michael C.
Full Description
This powerpoint presentation begins by presenting six basic means of protection from backflow, including:Air Gap;Atmospheric Vacuum Breaker;Pressure Vacuum Breaker;Spill Resistant Pressure Vacuum Breaker;Double Check Valve Assembly; and,Reduced Pressure Principle Assembly. Considerations for selecting a backflow preventer are presented, including hydraulics, over sizing of assemblies, adequate flow and pressure, thermal expansion, types of hazards,means of protection, andinstallation requirements. Includes figures.Cart
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