Fire Shutters

GUARDIANS FIRE - TM 120 Fire resisting roller shutter doors are purposely designed for kiosks, kitchen and office environments. Where the need for an aesthetically pleasing solution are paramount.

The FIRE-TM is designed to give up to 120 minutes of fire protection, with a multitude of fixing options certified and available to satisfy the current fire regulations.

The shutters are constructed to Warrington Fire Research Centre WARRES No 145904, the test is in accordance with clause 8 of BS476 part 22:1987.

SPECIFICATION

CURTAIN - Constructed from a 50mm flat / 75mm curved steel scroll laths interlocked with steel end locks and galvanised double formed bottom rail.

BARREL - Manufactured from mild steel tube, tube size varies based on the overall width and height of the curtain and the gauge of laths. The tube wall thickness varies dependant on the width of the shutter, at the drive end of the barrel is the specially adapted 240 volt tubular motor and at the non drive end the barrel is supported by a 18mm bright steel shaft which in turn is attached to a high speed roller bearing assembly the complete assembly is then attached to steel end plates.

SIDE GUIDES - Constructed from 50mm or 63mm galvanised guide mounted on 75mm x 50mm galvanised steel angles.

HOOD - Formed from 20sg steel sheet, this in turn is fastened to the structure through slotted holes to allow for expansion. Dependant on the fire rating of the shutter (i.e. 1HR, 2HR) and the size of the opening, the shutter could require a hood support bracket.

FINISH OPTIONS - The curtain and guides are galvanised, angles, barrel and end plates are painted. A paint finish using a polyester powder coating system is available, the colour to a BS 4800 or RAL number subject to availability.

OPERATION - Electrically operated 1PH

RELEASE MECHANISMS - Fire relay & key switch (requires maintained supply, battery back up needed if no maintained supply)

Fire relay, key switch & fusible link (requires maintained supply, battery back up needed if no maintained supply), fusible link if no fire alarm.

MODES OF ACTIVATION

FIRE RELAY - Principally the commonly used means of release, the characteristics mimic the use of the solenoid on the conventional fire shutter, again linked to the fire alarm, the shutter rather than closing manually through the gearbox will of course be powered down.The unit will require a maintained supply; if this is not possible a separate battery back up unit can be provided.

FUSEIBLE LINK RELEASE - On activation the link, which is a soldered link, separates and releases at 68 degrees centigrade, in effect the temperature release of the link creates a signal to the relay which in turn powers the door down.

Again if there is no facility for a maintained supply the battery back up unit must be used.

AUDIO VISUAL WARNING (FDI) Principally this unit is designed to delay the closing of the fire shutter; generally the fire alarm is linked to the audio visual unit and from the audio visual unit straight into the key switch. There is no need for a separate relay; there is already a relay in the FDI.

On activation from the fire alarm the unit starts to “flash & sound”, this unit contains a programmable timer which effectively delays the signal to the relay in the panel to close the door.