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Roller Curtain
The shutter curtain is constructed from cold rolled galvanised steel laths, 76 mm x 20swg. Each lath is retained by pressed steel endlocks fixed and secured by steel rivets.
Bottom Rail
Formed from mild steel flat bars bolted back to back through a centrally located galvanised steel flat quirk.
Side Guides and Angles
A purpose cold rolled mild steel section of 50mm depth. Mild steel angles of suitable size and thickness are supplied to support the side guides and to form a secure fixing to the structure.
Roller Brackets Plates
Of suitable design, and 3 mm thick. Fitted with suitable cleats for fixing to the structure.
Operation
Self-coiling shutters are manually operated i.e. push-up/pull-down. The roller barrel is manufactured from 101mm 16swg tube and contains suitable sized springs to counter-balance the shutter. In a fire situation, a solder fusible link melts at 72°C, releasing the shutter via a drop-bar.
Hand chain operated shutters are fitted with a gearbox unit complete with low level hand chain to open the shutter and a brake release cord, to close the shutter. The roller barrel is manufactured from mild steel tube of suitable outside diameter and wall thickness to suit the shutter application, and is unsprung. The gearbox contains a controlled descent mechanism. A fusible link backup facility is provided as standard. A solenoid release mechanism is available which provides a manual test and reset facility, and can be connected to a fire alarm system (by others).
Electrically operated shutters are fitted with a motor/gearbox unit complete with a push button station with “UP”, “DOWN” and “STOP” buttons. The roller barrel is manufactured from mild steel tube of suitable outside diameter and wall thickness to suit the shutter application, and is unsprung. The gearbox contains a controlled descent mechanism and a brake release cord to close the shutter in the event of a power failure. A solenoid release mechanism is available which provides a manual test and automatic reset facility, and can be connected to a fire alarm system (by others).
Audio-Visual Panel
A popular extra for fire shutters is an audio-visual panel which provides a warning that the shutter is about to close automatically via the fire alarm system. The panels require a 240 volt supply togetherwith an appropriate signal from the fire alarm system (by others).
Finish
Side guides, supporting angles and door curtain are galvanised. Non-galvanised sections are primer painted. Powder coated finish is optional and can be provided at extra cost.
Coil Casings (Hoods)
Coil casings are supplied as standard and are manufactured from 20 swg galvanised sheet steel.
Test Report
Loss Prevention Certification Board Reference No. 165a/04. Assessment Report No. CC93051a – BS 476 Part 22 1987.
Size/Weight
Maximum certified size of shutters is 2.2 m x 2.2 m (5 m²) and shutters weigh approximately 35 kg per m
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