Full Description

Positive pressure reduction devices are to be used in building drainage waste and vent (DWV) systems. They are intended to reduce the impact of short duration air pressure transients which arise in DWV networks through use. They are not intended to have any effect on long duration or steady-state offsets in air pressure.

Product Details

Published: 10/01/2009 ANSI: ANSI Approved Number of Pages: 20 File Size: 1 file , 860 KB