Damper, Louver, VAV, Sound Attneuator

Betec Cad Motorized Fire Smoke Damper

Type : Motorized Fire Smoke Damper

Fire Rating : 20 Series-1½ hour.

Leakage Rating : Class – 1, 2

Blade Type : 3V Single Skin; A : Parallel Operation

Construction : Galvanized Steel (GI) 

MSFD B-20 Series is a high performance UL 555 / 555S Classified combination 

of fire and smoke damper with 1½hr. fire rating , 

installed vertically or horizontally (with blades running horizontally) and is rated 

for airflow and leakage Class-II leakage in either direction.