The fire-resisting doors

PDD60 Fortas

The fire-resisting doors are made of cold-rolled galvanized steel: leaf of 1.0 mm in thickness, door-post of 1.5 mm in thickness, two models (for mounting in the center of the duct and with a frame for mounting at the end of the duct). Filling of a special technology, high-density stone wool, leaf thickness is 62 mm, door-post thickness is 105 mm. The leaf may be with or without a glassing, the door-post may be with and without a door sill. The doors are made according to the customer's dimensions and may be single-leafed or two-leafed. The doors are certified in the Fire Research Centre of the Fire and Rescue Department under the Ministry of the Interior and have the conformity (certification) mark GĮAŽ-01. The doors meet the obligatory requirements of LST EN 14600:2006:

The doors comply with:

  • The fire-resisting class – EW60-C5; EI260-C5; E60-C5; EI130-C5;
  • The smoke-proofing class – Sₐ, Sₘ, S200;
  • The air noise-proofing index – -37 dB;
  • Aeration grade – 4;
  • Wind load resistance – C5;
  • Waterproofing – 5A;
  • Reliability rate of 200 000 opening-closing cycles, class 6;
  • The door structure corresponds to the mechanical durability class 3, the air-tightness of doors meets all requirements;
  • The coefficient of thermal transmission – from 1,3 to 2,0 W/(m²K)
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