Fire Resistance
Smoke Control
Escape Doors
Thermal Insulation
Acoustic Insulation
Bullet Proof
Burglar Resistance
ATEX – Doors
Pressure Resistance (Tunnel and metro doors)
Blast Resistance
Wind Resistance
Watertightness
Air Permeability
Durability
Fire Resistance
Smoke Control
Escape Doors
Thermal Insulation
Acoustic Insulation
Bullet Proof
Burglar Resistance
ATEX – Doors
Pressure Resistance (Tunnel and metro doors)
What is Pressure Resistance?
Pressure-resistant doors are special systems designed to maintain their structural integrity against sudden changes in air pressure during train passage in railway and subway tunnels. This effect is described in the literature as the "train piston effect".
Door systems must continue to operate safely without deformation under sudden pressure increases, protecting the lock and hinge connections.
What Risks Are They Designed Against?
- Sudden pressure surge during train passage
- Air compression inside the tunnel
- Emergency evacuation scenarios
- Repeated pressure loads
These doors provide resistance against controlled but sudden pressure changes, not against explosion.
Performance Criteria
- High panel rigidity
- Reinforced frame structure
- Pressure-resistant lock and hinge system
- Long-lasting heavy-duty design
- Project-specific static calculations
Application Areas
- Subway tunnels
- High-speed train lines
- Escape tunnels
- Railway infrastructure
- Underground service corridors
