TECHNICAL DETAILS OF FIRE RATED STEEL DOOR

     GENERAL:

  • Material: Electrolytic Zinc Coated Steel sheet complying with ASTM A653.
  • Cutouts: Both frame and leaf have pre-punched cut-out to specific ironmongery. 

    FRAME PROFILE:
  • Material: 2mm (14 Guague) EGI sheet.
  • Frame Rebate: Double Frame Rebate
  • Jam Depth: 230mm
  • Structural Opening: Frame Size-10mm more in Width & 5mm more in Height.
  • Frame Construction: Three sided frame-Mitre welded along the face of the frame installed with a minimum of 8 through bolt type. 
  • Corner Construction: Welded. 
  • Ironmongery: Frame reinforced to receive hinges, lock strike plate with protective steel mortar guard welded with frame. 
  • Door Sealant: Fire rated rubber seal with adhesive fix in the door frame for silent proof and dust proof. 

    LEAF:
  • Construction: Hollow metal double skin seam type door with interlocking and welded arrangement at the stile edges. inverted top and bottom C-channel for a rigid and integrally closed leaf construction.
  • Leaf Sheet Thickness: 1.5mm (16 Guague). 
  • Leaf thickness: 45mm
  • Undercut: 5 -10mm
  • Infill: Fiberglass Core Steel stiffened infill with fiberglass wool filled in the voids between the adjacent stiffeners. 
  • Impact test: Capable to bare Impact load equivalent to a steel sphere weighing 15Kg (equal to 14.71 bar)
  • Reinforcement: Pre-drilled hinge plates for screw mounted fixing Box shaped reinforcement for selected ironmongery piece inside the door leaf. Concealed lock box with lock fixing brackets with pre-tapped holes. 
  • Fire Rating: Tested for 132 Minuts as per the BS 476 Part 20-22 
  • Glazing / Vision Panel: 
    Fire-rated glazing panel – 7.2mm thick AGC make vision glass. 
    Glazing Frame – 1.5mm thick steel sheet profile one side welded other side fixed with screw.
  • Finishing (As per RAL Color):
    Primer top coat-Corro-Zinc primer (Jotun Primax) top coat applied to pretreated steel. 
    Final Powder CoatPolyster Powder Coating Standard RAL Colour. Texture 90-120 microns. 
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