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Fire Doors FIRE DOORS (60/120 Minutes) (CONFORMS TO IS: 3614 (PART) 1992 BS: 476 (PART 20 & 22) MATERIAL Door Frames and Shutter are made from Galvanized Steel, Mild Steel, Stainless Steel.
DOOR SHUTTER Constructed from 1.25mm thick G.I./M.S./S.S. sheet formed to provide a 40/42mm thick fully flush, double skin door shell with lock seam joints at stile edges. Internal Reinforcements are provided at top, Bottom and Stile Edges for Fire Rating. The inner core is a light weight Honey Comb Raisned Board containing no asbestos or other inorganic fibres. The internal construction of the doors varies with the degree of Fire Rating as tested.
DOOR FRAMES
Produced from 1.6mm thick G.I./M.S./S.S. sheet formed to Single/Double rebate profile of size 100mm x 57mm (+/- 0.3mm) with a maximum bending radius of 1.4mm.
The door frames may be built into the brick or block walls using corrugated “TEE†Anchors not welded to the frame (first fix). Frames may also be fixed on plastered openings with the help of Metallic Expansion Shield with counter sunk screw (second fix). Doors Frames are supplied to knock-down form with butt joints for bolted assembly at site.
FINISH
The door frames and door shutters are primed with Zinc-Phosphate Stoving Primer and finished with two coats of Polyurethane paint as required up to a minimum of 70 microns.
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