Fire Block - Fire Protection Systems. Fireblock Ultra from Dufaylite
Fire Block Ultra

Fully certified in accordance with 85476 Part 20,
Fireblock Ultra passive fire
protection dampers are designed to provide up to 83%
free area for optimum performance.
Manufactured from slats of quick activating moisture-resistant
intumescent material secured in a galvanised steel frame,
Fireblock Ultra is a robust fire block damper
ideal for high air movement.
Suitable for aggressive environments and resistant to
moisture, Fireblock Ultra is suitable for both
external and internal situations with fast closure in a fire
situation.
- Fully certified to B5476 Part 20 (19B7)
- Slim construction only 40mm thick
- Lightweight
- Passive fire protection
- Optimum fire block performance for high air movement
applications
- Suitable for aggressive environments
- 2hr & 4hr fire block protection
Fireblock Ultra Hi Air™

For high air movement ducting, Fireblock Ultra Hi Air
passive fire protection dampers have been
purpose designed to provide a super-efficient fire block
performance. The fire block damper's framework is sited on the
outside of the duet to eliminate all 'solid' elements of the damper
from within the duct interior.
Fireblock Ultra Hi Air is manufactured from the same quick
activating material as Fireblock Ultra with all the inherent
benefits.
- Exterior spigot connection method to create maximum area for
airflow within duct
- High air volumes at up to 20m/sec
Temperature Curve
Recorder d during an official furnace test on a Fire Block
compared with the standard curve for BS476 Part 20 1987.

Pressure Drop
Shown through a Fire Block damper.
