The door is steel fire-prevention
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- Courier
- In detail
- BrandФорпост
- Country of manufactureChina
- Door materialMetal
- Custom-designed doorsFire Doors
Fire-prevention translucent doors
Door the fire-prevention dvupolny deaf - the description
The door box with a threshold is made of a bent steel profile 1,2 mm thick. The internal space of a box is filled with cement and sand solution.
Each cloth of a door of box-shaped section consists of two coverings which are connected among themselves by means of spot welding and are made of a steel sheet 1 mm thick. The internal space of cloths is filled with heat-insulating material. The general thickness of a cloth is 50 mm.
On each cloth from the central antechurch by means of bolts the platband made of a steel sheet 1 mm thick is fixed. The internal space of a platband is filled with heat-insulating material.
Each cloth is hung on a box by means of three hinged loops. Between loops two steel crossbars entering gearing with a box are established.
Two layers of the thermoextending tape with a section of 25 x 2 mm are fixed in grooves on face surfaces of a cloth on all perimeter except a threshold. with a general thickness of 4 mm.