Airfoil Blade Smoke Dampers

SSD-AF and S-AFM is a series of CVS-SAFE4 UL/ULC classified smoke dampers manufactured with “Airfoil” type blades. These dampers are tested under UL555S at a maximum of 4000 feet per minute at 6 in. w.g. of static pressure and labelled Class I or Class II leakage rated smoke damper