ship door / fireproof / double / stainless steel
Door blades manufactured from 2mm stainless steel door skins filled with superwool insulation.
Z section frame formed with 4mm stainless steel.
Door and frame fitted with 10 heavy duty lift-off hinges with grease nipple
Live leaf fitted with 3 point latching stainless steel system on inside face
External face fitted st/st lever handle on live leaf.
Slip bolts fitted top and bottom on dead leaf.
Door complete with LCN heavy duty door closer.
Door frame fitted with weather seal and runner fitted front and back of door.
1.0 bar pressure.
Difference between A- and H-fire ratings
A-fire rated doors and walls are tested with a normal ISO standard fire temperature curve. H-fire rated items are tested with a Hydrocarbon fire curve. The exact difference is the temperature during the testing procedure, H-fire ratd doors and walls are tested at higher temperatures in a longer time period.
The fire doors and fire walls shall maintain its function with respect to fire resistance and structural integrity when exposed to a heat load characteristic for cellulosic (A-fire rating) or hydrocarbon (H-fire rating) fire.