Description

• Frame: Hight quality galvanized iron sheet of 1.0 mm – 1.6mm thickness
• Blades: Interlocking blades roll formed from 0.8mm –  1mm thick galvanized steel (curtain blade) & thickness 1.6mm for bladed fire damper
• Blade Ramp: Formed 1.6mm thick galvanized steel with a spring holder.
• Springs: two constant force stainless steel springs
• Fusible Link: UL listed fusible link (165ºF / 212ºF)