Volume Control Dampers:-

There are specially designed for low leakages of air dampers are available in GI opposed blade type, aluminium extruded blade type ,face and bypass .The blades are connected trough suitable linkage to a contolling actuating devices,such as eletrical actuator or fusible link ,blades are provided with brass or nylon bush with gear operated or Ms linkage facility to enables smooth and noiseless rotation.

Fire Dampers

There are made of heavy gauge galvanised steel having multi blade construction. The blades of the fire Dampers are held in the open position by a high tensile spring and a fusible link .the fusible link is UL stamped and operated at 74 degree C ,causing the dampers to close in case of fire .thus the spread of fire .thus the spread of fire through the ducts are prevented.