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Description

Colt Defender is a motorized 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 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 local Colt control panel closes the Defender in the specific duct. When all clear the damper will motor open.

24 volt DC motors are recommended, so that a simple battery back up system can incorporated to ensure the damper operates in the event of a mains failure.

General information
Features

Precision blade linkage mechanism

High free area

Tested and approved to BS 476-20, providing a four hour fire rating and a 50,000 lifecycle test with damper fully operational at the test conclusion

Uniclass 2015
Fire and smoke dampers (Pr_65_65_24_29)Primary
Specification data - Fire and smoke dampers
Product Reference

Defender motorized fire damper

Damper motor -
Type

24 v DC

230 v AC

Position

Front

Rear

Side

Closing

Electrical supply failure

Signal from fire detection system

Thermal link

Standard product features

Construction:

1.5 mm welded galvanized mild steel flange case incorporating 2 mm stainless steel interlocking blades and frame side seals, providing a four-hour fire rated assembly to BS 476-20 (1987).

Rating:

Airtight to Class C according to DW 144.

Dimensions:

200 x 200 mm up to 1000 x 1000 mm. Intermediate sizes and multiple assemblies available.

Features:

  • Precision blade linkage mechanism.
  • High free area.
  • Tested and approved to BS 476-20, providing a four hour fire rating and a 50,000 lifecycle test with damper fully operational at the test conclusion.

Product Options

- Motor:

The damper is actuated by a drive in, drive out 24v DC or 230 v AC motor fitted to either the front, rear or the side.

- Closing:

A thermal link closes the damper at 720°C. Alternatively the damper will close when a signal is received from a fire detection system or when electrical supply fails.

Literature
Third party certifications
  • Quality Assurance - certficate : Enquire from Colt