Naval Defence

An explosion inside a ship results in a huge overpressure, fragments and the spread of fire. The size of the damage and danger can be significantly reduced, not only by improving the structure of the ship (transverse bulkheads) but also by using Blast Resistant WT membrane doors.

For these specific demands Van Dam developed their NADAM 4 series, Blast Resistant membrane doors for naval applications.

The Van Dam NADAM 4:

• High blast resistance with a design of medium weight
• Independent qualification test by QinetiQ, UK (former DERA)
• Pressure resistance more than 1000 kPa step load (20 bar static)
• Explosion resistance at least 10 times higher compared to a conventional door of the same weight
• Watertight
• Central closing mechanism

Link: Naval membrane

The NADAM range:

For the very specific demands in the Naval Defence industry Van Dam has a range of fit-for-purpose and certified range of door and hatch solutions called 'NADAM', tailored to your application:

• Watertight and/or explosion-resistant and/or fire-rated, LP to HP
• Vertical or horizontal sliding, top or side-hinged
• Operated manual, hydraulic or electro powered, centrally controlled yes/no
• Flush mounting yes/no, spring balanced yes/no, sub frame or coaming included yes/no, please feel free to ask our advice on the possibilities

Typical applications

• Frigates
• Corvettes
• Destroyers
• Amphibious Ships
• Aircraft Carriers
• Guided Missile Cruisers

You will find our explosive resistant solutions in:

• F310 frigates of the RNoN (Royal Norwegian Navy)
• type 45 destroyers of the RN (Royal Navy, UK)
• LCF frigates of the RNLN (Royal Netherlands Navy)
• etc.

Safety, Security, Reliability, Sustainability and Longevity