AWWA ACE70931

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:

30

File Size:

1 file , 1.5 MB