Blast Effects
The door is designed for reflected blast pressure on door surface up to 28 bar (2,8 MPa; 406 psi); blast resistant calculated by FEM Analysis for reflected blast pressure up to 28 bar (406psi).
Pressure-Impulse-Diagram calculated by Fraunhofer Institute for High-Speed Dynamics, Ernst-Mach-Institute, EMI, for different kinds of blast loads and description of the corresponding failure mode, Report I-11/15

Overpressure direction:
The overpressure wave direction is tested direct to the front.

Product Data
Blast resistant door in a high efficient construction of steel and reinforced concrete. The mounting combines surface mounting and in wall mounting; side hinged; swinging type; the door can be operated from inside and outside, manual operation of the door for opening and closing; door thickness: 400 mm, concrete slab thickness: 200 mm with 3 side bolt work and wheel handle – inside and outside; integrated hatch door available

Description of latching
Door is locked with round pins (dia 80 mm) and central bolt work, locking way 50 mm; each leaf is hinged with strong hinges in vault style, which allows door opening 180°, hinge pins are machined and polished from 80 mm diameter steel, rotating in sinter bushing, pins are hardened in a range of 38 to 40 HRC

Blast door operation
Force required to set the door in motion from the 90-degree open position app. 120 N, optional opening from inside and outside by electronic lifting cylinder is available

Door frame
The heavy steel frame is constructed from 400 mm by 400 mm bended angle and prepared with anchoring studs.