A Fire Damper is a critical component designed to halt the advancement of fire within the ductwork of heating, ventilation, and air conditioning (HVAC) systems. Specifically, Smoke Fire Dampers are equipped with fire-resistant walls and floors, effectively preventing the spread of smoke through the ducts. These dampers find applicability in ventilation and air conditioning systems due to their unique properties. Crafted from robust heavy gauge galvanized iron sheets with a multiple opposed blade construction, they incorporate chrome-plated spindles and self-lubricating sintered bronze bushes. Stainless steel side seal gaskets are employed to mitigate the spread of smoke and fire. The fully enclosed operating linkage enhances operational reliability.