Sep 16, 2004 #1 FIREDAMPER22 Mechanical Sep 1, 2004 3 Does anyone know if a class 0 leakage fire and smoke damper exists ? I only know of class 1 thru 3 leakage ratings for fire and smoke dampers.
Does anyone know if a class 0 leakage fire and smoke damper exists ? I only know of class 1 thru 3 leakage ratings for fire and smoke dampers.
Sep 20, 2004 #2 DRWeig Electrical Apr 8, 2002 3,004 Never run into a class 0 damper. However, most fire dampers require class 0 or class 1 duct fittings. I wonder if somebody got confused while writing a apec? Upvote 0 Downvote
Never run into a class 0 damper. However, most fire dampers require class 0 or class 1 duct fittings. I wonder if somebody got confused while writing a apec?
