All our fire shutters are manufactured and produced in accordance with the parameters and technical respects indicated within the specification, which was submitted to the Warrington Fire Research Establishment. The shutters are constructed to Warrington Fire Research Centre WARRES No145904, the test is in accordance with clause 8 of BS476 part 22:1987, and available in 1Hr, 2Hr, and 4Hr.
Manual - via a geared hand chain system.
Electric – either single phase tubular motors for light usage, or heavy duty three phase industrial drive motors for heavier doors.
Barrel
A mild steel tube with bright drawn mild steel support shaft, both of varying diameter, dependant upon size, housing either steel springs to counter balance the torque of the shutter curtain.
Rolled mild steel channel section, of varying depth dependant on opening size, mounted onto mild steel angles to captivate the shutter curtain on its opening and closing cycle.
Formed from 20swg steel sheet, with the top leg slotted for expansion. Dependant on the fire rating of the shutter and the size of the opening, the shutter could require a hood support bracket.
Mild steel plates to support the roller barrel assembly incorporating mild steel ‘U’ cups to house the support shaft, secured to continuous ‘flag-post’ design fixing angles or independently mounted.
As standard, constructed from 76mm deep, concave profile, galvanised mild steel interlocking laths, with steel end locks pressure riveted at each end of each alternative lath to prevent lateral movement. The bottom rail is manufactured from galvanised mild steel inverted ‘T’ section or ‘L’ section that interlocks with the lowest lath to ensure accurate closing at floor level. Also available in 50mm flat steel lath on some applications.
Fire Relay, fusible link, and solenoid release are available depending on operation type and whether there is a maintained power supply available. Battery back up units are also available.
