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Clean Room Door Fire Rated Door SPECIFICATION FOR FIRE RATED DOOR (Two Hours) MATERIAL Door Frames and Leaves are made from Galvanized Steel. DOOR LEAVES Constructed from 1.0MM thick galvanized steel sheet press formed to provide a 48MM thick fully flush, double skin door shell with seamless welding joints at stile edges. Internal Reinforcements are provided at top, Bottom and Stile Edges for Fire Rating. The internal construction of the door is a specially designed Honeycomb structure with reinforcement at top, bottom and stile surrounds. The internal construction of the door varies with the degree of Fire Rating as tested. For doors having overall height in the excess of 2300mm the shutters shall essentially have double latching. DOOR FRAMES Produced from 1.6MM thick galvanized steel sheet press formed to single rebate profile of size 100 x 57MM (+/- 0.3MM) with a maximum bending radius of 1.4MM. Frames may be fixed on plastered openings with the help of Metallic Expansion shield with counter sunk screw. Door Frames are supplied to knock-down form with butt joints for bolted assembly at site. VISION GLASS Fire Rated Vision Glass with 6MM thick clear glass can be provided for a maximum of 2 hours fire rating. The Vision Glass can be provided in 380MM dia, Rectangular in standard dimensions of 200MM x 300MM. FINISH The door frames and door shutters are primed with Zinc-Phosphate Stoving Primer and finished with Polyurethane Paint of approved shade (60-80 mircons) IRONMONGERY HINGES Stainless Steel Ball Bearing Butt Hinges (Dorma) 100 x 75x 3 MM thick are fixed flush to the frame & shutter. LOCK Shaft Lock, Mortice Lock with Lever Handles, Dead Lock, Baby Latch etc. (As per specifications) Door Closer TS-73 with std arm (Dorma) / As per specifications Concealed Flush Bolts (For Double Shutter Doors) 300mm long for Doors Upto 2100mm ht. and 600mm long for Doors upto 2400mm ht.
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