Fire and Smoke Dampers

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Cosmic range of fire and smoke dampers are tested and certified for 120 mts fire rated as per UL-555 standards by CBRI Roorkee and they are designed to prevent the free passage of smoke and fire in the air distribution ducts in Air conditioning and ventilating systems. Fire dampers are available with or without extended sleeve models.

Fire damper without sleeve model are fixed for duct mounting and the extended sleeve fire dampers are suitable for wall mounting by means of bolts and nuts.

Frames:1.6mm thick high quality galvanized steel frames having 150mm depth for without sleeve model and 165mm depth for with extended sleeve model fully welded and robust construction.
Blades:: 1.6mm / 1.2mm thickness high quality galvanized steel heavy duty inter locking 'V' grooved blades having standard 150mm depth
Extended Sleevess: 1.6mm/1.2mm high quality galvanized steel sleeve with welded construction sleeve length available for 300mm to maximum 800mm long
Spindles and bearings: Ø 9.3x63mm chrome plated spindles with self lubricated Ø 14.5xØ 9.3 brass bushes for all of our fire and smoke dampers.
S.S Jamseals: Stainless steel gaskets are provided in the both sides to prevent spread of smoke and fire in the damper.

Frame with flat frontal face and inner V grooved type multi blades assembly. Frames are welded and inner blase are connected to the frame by means of spindle rods and bushes. Bushes are available in brass or bronze. All biades are connected by a suitable flat link arrangement.
The dampers are also provided with S.S Concealed jam seal (compression type) on the sides to prevent spread of smoke and fire.
Available in three model as follows fire dampers with shutting mechanism by thermal fusible link, Motorized fire dampers with spring return Actuator, Control panels and motorized fire damper with extended sleeve type especially for mounted on the walls. In this sleeve model the damper actuators and optional accessories are normally externally mounted on one side of the dampers sleeve, these items are kept on the right side of the sleeve normally.
(Right side mounting) as on request they may be kept on left hand side of the sleeve also (left side mounting)

The damper is held open by a UL 555 stamped fusible link and spring fixed with flat link arrangement if the temperature in the damper increased more the 74° C the fusible link will be shuttling close damper with spring action.
Fire and Smoke damper with actuators mechanism, control panel and temperature sensor The damper is kept open by the actuator, signal received from the smoke detector fire panel or temperature sensor through the control panel. The actuator will close the damper. If the actuator is spring return model when the power is not available during smoke and fire condition the spring return actuator shall shut the damper.

Dampers are available with UL 555 - Fusible Link with spring mechanism or with electrical actuators operations.

Sizes available from minimum 200x200mm to maximum in any standard or Non standard sizes.