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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. Product Details
Edition: Vol. - No. Published: 11/01/2009 Number of Pages: 30File Size: 1 file , 1.5 MB