Fire Dampers are fast acting positive barrier against the spread of fire through the ductwork. Specially designed curtain type fire  dampers are efficient, economical and simpler to install than single and multi-section blade type fire dampers.  In structures projecting high or special life hazards such as hospitals, educational institutions, hotels etc. where the danger to life is imminent, high quality & well-engineered fire dampers are most valuable.UL listed fire and smoke dampers are designed to automatically close upon the smoke or fire detection. The temperature responsive device will detect the temperature rise in the duct in the event of the fire and closes to prevent the further spreading of the fire.