Blast Effects
The door is designed for blast pressure on door surface up to 28 bar (2,8 MPa; 406 psi); up to 9 bar blast overpressure is tested with prototype door BT1-2424 at German Army Test Laboratory WTD 52 (certificate-no: WTD52GF210-04/2018-Z); blast pressure up to 28 bar (406 psi) is calculated by FEM Analysis.

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; sided hinged; swinging type; the door can be operated from inside and outside, manual operation of the door for opening and closing;
door thickness: 500 mm
concrete slab thickness: 300 mm
with 3 side bolt work and wheel handle – inside and outside; opening from inside as well as outside

Description of latching
Door locked with round pin (dia 80 mm) and central bolt work, locking 50 mm; each leaf is hinged with 2 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.

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 500 mm by 500 mm L-shaped angle and prepared with anchoring studs.