Blast-Proof, Highly Defensible Security Door

• Iris design transfers impact and blast loads uniformly to the frame. Battering rams are ineffective.
  
• The door retains full strength even when partly open.
  
• Partial opening allows for security check while maintaining cover and a clear line of fire.
  
• Door can be operated manually, electrically, or hydraulically.
  
• If used as a vehicular gate, is instantaneously effective as soon as closing starts, because it rises from the bottom.
  
• Unlike other diaphragm designs, can be closed fully without added mechanical complexity.
  
• Can be equipped with positive compression seals.