Fire Shutters

Fire Shutters Images & Specifications | Contact Us

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DMI Security Group Ltd supplies, installs and maintains Fire Rated Shutters.

The Fire shutters are electrically operated and consist of a steel slatted curtain and galvanised steel box assembly and guides. The shutters can be powder coated, please see standard colour chart as an optional extra.

The Fire Shutter is designed to be a security barrier during normal use and to be closed automatically during a test or an emergency situation. In the event of receiving a fire alarm signal the Fire Shutter curtain will perform a powered decent,  creating a fire resistant barrier.

In the advent of a power failure the shutter will close using a battery backup facility.

Move the cursor over any of the thumbnail images below for a description & to see a larger image displayed. Click on the link above to contact us direct with any queries.

Fire Shutters – Specifications &Technical Information


The Fire shutters are capable of providing specifications with a choice of 60, 120 or 240 minutes protection

Approved Standard

The fire resistance conforms to BS 476: Part 22: 1987 and BSEN1634-1:2008. The Fire shutters are tested and approved by Exova Warrington fire, report number 312862

Shutter Construction

A single skinned 75mm scrolled or 50mm flat galvanise steel slat

50mm flat slat 10kg/m2 75mm scrolled slat 10kg to 16.5kg/m2 dependent upon the size of the curtain and integrity rating

Bottom Rail
T section steel bottom slat 49mm high x 74mm deep

Guide Rails
3mm thick galvanised steel channels 50mm or 65mm deep, depending upon shutter width. Mounted on steel angles for fixing.

Shutter Box
Galvanised steel endplates welded to the top of the guide assembly, in a flag arrangement with box assembly. Boxes are supplied in a sleeved section to allow for expansion in 250mm, 300mm and 350mm sizes depending on shutter height.

Galvanised steel as standard or galvanised steel powder coated. RAL or BS colour available at extra cost

Localised sensors, such as smoke and heat detectors. A range of audio visual devices and emergency switch’s can be connected to the control panels

Technical drawings available on request

There is a considerable amount of legislation that needs to be taken into account when installing Fire Shutters.

For this reason we do not publish standard prices but would ask instead please that you contact us direct to discuss your requirements in greater detail. We will then be able to provide a free, no obligation quotation based upon our expertise and knowledge of current legal requirements.

Automatic Operation

There are two main methods of automatic operation, alongside the standard key switch.

fire relay means that the shutter is connected directly to the fire alarm system: When the alarm is activated the shutter will close. This type of operation is principally the most commonly used means of release. A volt free signal is required from the fire alarm.

Battery Back Up – if under fire conditions there is a power failure, the shutter must have a means of ensuring closure. to The battery backup will give the shutter power for a minimum of one operation, under fire conditions.

As an option an Audio/Visual Warning unit can be used in connection with the Fire Shutter. This unit is connected to the fire alarm system, and operates, usually with a time delay. During this delay an alarm is sounded, warning those in close proximity to the shutter that it is about to close. This will allow personnel to exit the affected area. The time setting can be set by our engineer.

Call us on 0844 583 8787 to arrange for a no obligation, free quotation.

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TEL: 020 3876 9080