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Butterfly fire dampers

Photo of product family: Butterfly fire dampers

The shut-off (butterfly) fire dampers are manufactured in the following nominal sizes: DN100, DN125, DN160, DN200, DN250. The fire dampers are equipped with a thermal fuse mechanism ensuring the damper switch to the safe position in case of reaching an ambient temperature equal to or higher than 72°C. The fire dampers allow using limit switches signalling closed position of the damper blade (1 limit switch) or blades (in case of using 2 limit switches). The casing is made from galvanised steel sheet; the fire damper blade is made from a silicate cement board.

Butterfly fire dampers - Products range
Miniature picture Product code Name of product Files to download
Photo of product Shut-off (butterfly) fire dampers FDA-BU

Shut-off (butterfly) fire dampers

The fire dampers are manufactured in the following nominal
sizes: DN100, DN125, DN160, DN200. The fire dampers are
equipped with a thermal fuse mechanism ensuring the damper
switch to the safe position in case of reaching an ambient
temperature equal to or higher than 72°C. The fire dampers
allow using limit switches signalling closed position of the
damper blade (1 limit switch) or blades (in case of using
2 limit switches).
The casing is made from galvanised steel sheet; the fire damper
blade is made from a silicate cement board.

Shut-off (butterfly) fire dampers
Photo of product Circular Twin Blade Fire Damper (Butterfly type) CFDM

Circular Twin Blade Fire Damper (Butterfly type)

 

The butterfly type fire dampers are used in small diameter applications.
The damper blade consists of two semi-circular parts connected by a fusible link.

Diameters: ø 100–250,
CE certified acc. to EN 15650,
Tested in accordance with EN 1366-2, classified acc. to EN 13501-3+A1,
Fire resistance EIS 60, 90, 120,
Corrosion resistant acc. to EN 15650

NOTE!
The CFDM 250 is tested only for EI90S inside the concrete (solid) ceiling, not inside wall.
The CFDM 250 has same construction as CFDM in smaller DNs dampers, but the materials are stronger/thicker.
The advantage is that the CFDM 250 is shorter comparing the normal fire dampers, optimal for the specific installation inside shaft ceiling.

The butterfly type fire dampers are used in small diameter applications. The damper blade consists of two semi-circular parts connected by a fusible link.

Diameters: ø 100–200,CE certified acc. to EN 15650,Tested in accordance with EN 1366-2, classified acc. to EN 13501-3+A1,Fire resistance EIS 60, 90, 120,Corrosion resistant acc. to EN 15650,with fusible link 72°C,

Circular Twin Blade Fire Damper (Butterfly type)
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