Description

The steel fire door is an insulated fire-rated door made of steel which is applied for the door frame, the skeleton and the panel. The filling material is non-toxic to human body.
They are usually applied in firewalls, stairs, pipe shafts, cable shafts, house entrances and warehouses.
Fire Rating: Level A (>1.5 hrs), Level B (>1hr) and Level C (>0.5 hr)
Width of Door Frame: A **5mm, B **5mm, C *0mm
Thickness of Door Leaf: A *0mm, B *2mm, C *2mm
Functions: Fireproof, smoke-proof, heat-insulation
Classification:
-Single doors
-Glazed single doors
-Single doors with a light window
-Glazed single doors with a light window
-Double doors
-Glazed double doors
-Double doors with light windows
-Glazed double doors with light windows
Door Frame: rolled and bent from 1.**1.5mm thick steel board
Door Leaf: covered with a 0.8mm galvanized steel panel that is stamped on a mold and bent by machine; welded to its stiffener and agglutinated to fire-retardant filling material
Door Filling Material: Perlite board
Surface: treated with electrostatic spraying or coating
Leaves of double doors and unequal double doors join by flat interface but welded with thin gap-covering plates to improve its sealing property as well as to look good. Grooves of door frames and door leaves are for fire-resistant seals, which will expand when the temperature rises to *0℃, filling the gap between leaves and frames so as to prevent from the fire and the smoke.
The steel fire door is framed by a steel skeleton and filled with perlite board, which is shock-resistant, abrasion-resistant and unlikely to deform.
Installation: filled with cement and mortar
Accessories: a mortise lock, a door closer and 5 fire-rated hinges