BD Series

Blast Doors

Twelve door models on one pressure scale — from certified tunnel doors to 30.00 bar blast resistance. Hinged and sliding, single and double leaf, fire-rated and motorised configurations. 500+ doors delivered across 15+ countries.

0.07 bar1.003.007.0030.00 bar

Blast Hinged Doors

0.07 – 30.00 bar

Single and double leaf hinged doors in three series — from control-room and shelter doors to maximum-protection configurations. Fire-rated and motorised options across the range.

Low Blast
Low Blast

0.07 – 0.50 bar

BD-007
0.07bar
7 kPa · 1.0 psi
  • Hinged · single / double leaf
  • EI90 fire rated
  • Control rooms · shelters
Technical specification

Sandwich-construction hinged leaf on a fabricated steel frame, FEA-validated against the specified blast load. EI90 fire rating. Options: blast glazing, access control, marine-grade 316L execution.

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BD-015
0.15bar
15 kPa · 2.2 psi
  • Hinged · single / double leaf
  • EI90 fire rated
  • Safe rooms · shelter entries
Technical specification

Sandwich-construction hinged leaf on a fabricated steel frame, FEA-validated against the specified blast load. EI90 fire rating. Options: blast glazing, access control, marine-grade 316L execution.

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BD-050
0.50bar
50 kPa · 7.25 psi
  • Hinged · single / double leaf
  • EI90 fire rated
  • Oil & gas · industrial
Technical specification

Stiffened sandwich leaf on a reinforced frame with multi-point latching. EI90 fire rating. Options: blast glazing, access control, motorised operation, marine-grade 316L execution.

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Medium Blast
Medium Blast

1.00 – 3.00 bar

BD-100
1.00bar
100 kPa · 14.5 psi
  • Hinged or sliding
  • EI60 / EI90 fire rated
  • LNG terminals · refineries
Technical specification

Reinforced leaf construction with heavy internal stiffening, available hinged or sliding. Combined blast + fire configurations. Options: 2.2 kW motorised operation, pressure relief valve, ATEX Zone 1 equipment, marine execution.

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BD-200
2.00bar
200 kPa · 29 psi
  • Hinged or sliding
  • Fire rating optional
  • Military · defence bunkers
Technical specification

Reinforced leaf construction with heavy internal stiffening, available hinged or sliding. Options: motorised operation, pressure relief valve, ATEX Zone 1 equipment, marine execution.

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BD-300
3.00bar
300 kPa · 43.5 psi
  • Hinged · single / double leaf
  • Engineered to opening size
  • Military hangars · bunkers
Technical specification

Full-plate leaf construction with engineered hinge assemblies sized for the leaf mass. Engineered to the required opening size. Options: remote control, position signalling, pressure relief valve, manual override.

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High Blast
High Blast

7.00 – 30.00 bar

BD-700
7.00bar
700 kPa · 101.5 psi
  • Hinged · single / double leaf
  • Engineered to opening size
  • NATO magazines · max security
Technical specification

Full-plate construction with engineered hinge and latching systems, engineered to the required opening size. Motorised operation with manual override; remote control and position signalling options.

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BD-1500
15.00bar
1500 kPa · 217.5 psi
  • Project-specific engineering
  • Beyond-catalogue configuration
  • Special protection programmes
Technical specification

Beyond-catalogue configuration engineered case-by-case for the project load. Full-plate construction with hinge and latching systems designed per application. Details on request.

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BD-3000
30.00bar
3000 kPa · 435 psi
  • Project-specific engineering
  • Maximum protection class
  • Strategic facilities
Technical specification

Highest protection class in the BD range, engineered case-by-case for strategic facilities. Full technical scope defined per project and shared under NDA.

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Blast Sliding Doors

3.00 – 7.00 bar

Heavy sliding doors for military hangars, vehicle entrances and magazine fronts — where leaf weight and swing clearance rule out hinged solutions.

BDS-300 sliding blast door
BDS-300
3.00bar
300 kPa · 43.5 psi
  • Sliding · top-hung guided rail
  • Engineered to the required opening size
  • Military hangars · vehicle entrances
Technical specification

Top-hung guided sliding leaf on a heavy track system with positive locking against the frame. Engineered to the required opening size. Motorised drive with manual override; remote control and position signalling options.

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BDS-700 sliding blast door
BDS-700
7.00bar
700 kPa · 101.5 psi
  • Sliding · top-hung guided rail
  • Engineered to the required opening size
  • NATO magazines · ammunition storage
Technical specification

Top-hung guided sliding leaf on a heavy track system with positive locking against the frame. Engineered to the required opening size. Motorised drive with manual override; remote control and position signalling options.

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Tunnel Doors

Certified · C5 · 7 kPa

Doors for railway, metro and road tunnels and ventilation shafts, engineered against repeated aerodynamic pressure and suction from passing trains. Independently tested at an accredited laboratory.

BD-007 TWP tunnel door
Certified
BD-007 TWP · Tunnel Wind Pressure Door
C5· 7 kPa
Design load 7 kPa · max tested ±10 kPa
  • Single and double leaf · hinged
  • 1900 × 2300 mm · custom sizes available
  • EI90 fire rated configuration
  • Railway · metro · road tunnels · ventilation shafts
Technical specification

Hinged steel leaf on a heavy fabricated frame, engineered for repeated bidirectional pressure and suction cycles. Design load 7 kPa; maximum tested ±10 kPa — passed without damage at an independent accredited laboratory. Reference size 1900 × 2300 mm; custom sizes available. Options: EI90 fire rating, blast glazing, emergency exit hardware, panic bar.

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Standards & Certification

Reference framework

BD Series doors are engineered and verified within an internationally recognised framework for blast, pressure and fire performance.

Wind Pressure
  • Tunnel doors: 7 kPa design load — Class C5
  • Maximum tested ±10 kPa, pressure and suction, without damage
  • Testing performed at an independent accredited laboratory
Blast Design
  • Structural design per UFC 3-340-02 response limits
  • Equivalent static load methodology per ASTM F2247
  • Static and dynamic verification for each project load case
Fire Resistance
  • Fire classes E240, EI180, EI120 and EI90 available
  • Tested per EN 1634-1, classified per EN 13501
  • Fire performance combined with blast and pressure ratings

Datasheets, drawings and test documentation are not published. Technical documents are shared with qualified project parties on request — under NDA where required.

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