Defender motorised smoke damper - fire damper

For more information on the application of such equipment in fire fighting shafts, click here.

Defender 1 - Smoke Damper

The Colt Defender 1 is an addressable motorised smoke shaft or fire damper that allows the passage of smoke from corridors, lobbies and stairwells into smoke shafts. It is ideal for residential shaft applications.

In the event of a fire, the Colt OPV panel operates the Defender fire / smoke damper on the specific fire floor in conjunction with the roof mounted ventilator at the top of that shaft, allowing smoke to pass from the fire floor into the smoke shaft. The other dampers on the floors above and below will remain closed, so as not to allow any leakage of smoke or fire spread onto the other floors. When all clear the fire damper will be closed by the motor.

It is recommended that 24 volt dc motors be used, since this will allow a simple battery back up system to be incorporated.

Features and benefits:

- Robust 1.5mm galvanised steel construction
- Wide range of sizes and controls options
- Low leakage rate
- High free area
- Wide range of optional decorative fascia grilles
- Exhaustively tested
- Sleeved option with motor at the front avoiding need to access the shaft for maintenance.

For further details, please see the leaflet (1.3 MB).

For installation details for Defender 1, please choose between:

Sleeved version - motor on the front (65 KB)

Unsleeved version - motor on the rear (65 KB)

Defender 2 - Fire Damper

The Colt Defender 2 is a motorised fire damper suitable for use in all types of HVAC ductwork. It has been designed to prevent the passage of fire from one area to another.

Defender 2 is operated by the fire detection system, with the additional back-up of a thermal link which closes the damper at a pre-determined temperature. In the event of a fire, the Colt OPV panel closes the Defender in the specific duct. When all clear the damper will motor open. It is recommended that 24 volt dc motors be used, since this will allow a simple battery back up system to be incorporated.

Features and benefits:

- Stainless steel interlocking blades and frame side seals, Class C airtight to DW 144
- Wide range of sizes and controls options
- Precision blade linkage mechanism
- High free area
- Wide range of optional decorative fascia grilles
- Tested and approved to BS 476 Part 20, providing a four hour fire rating
- A successful 50,000 lifecycle test with damper fully operational at the test conclusion.

For further details, see the leaflet (1.3 MB).

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