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TYPE B
FIRE DAMPER

BLADES OUT OF AIRSTREAM

GAVLANISED MILD STEEL
CASING & BLADES

Suitable for Rectangular Duct

The AJS Type B - fire damper range is designed for use in high air velocity systems. Manufactured by us in the UK, provides a curtain type fire damper specifically preventing the spread of flames in fire conditions within the ductwork, whilst allowing minimal airflow restriction through the system.
 
Specification / Features
  • A continuous series of 0.8mm galvanised mild steel (as standard) folded and interlocked hinged blades make up the fire curtain barrier, contained within the fully welded (airtight) damper casing of 1.2mm galvanised steel.
  • The trailing curtain blade is fixed to the head/top of the damper casing, held open via a fusible link element set to trigger @ 72ºC.
  • Two constant force stainless steel type 302 coiled band springs, exerting a pull of not less than 35n attached to the leading blade & the radius locking ramps, (profiled to the curtain/blade assembly) fitted to the base/bottom of the damper casing, facilitates the curtain/blade closure, creating both a positive lockdown of the curtain/blades & barrier to flames within the ductwork system.
Damper Model
  • Type B - Rectangular - Blade out of airstream.
Duct Connection type
  • Rectangular Slip joint / Spigot.
Factory Fitted Installation Options
  • Drywall Frame.
  • Fire Curtain Frame.
  • Hanging Cleats.
  • HEVAC Frame.
Material Options
  • Galvanised steel.
  • Stainless steel.
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Blades Out Of Airstream
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Type B - Standard Type B - Standard
Type B - Hanging Cleats Type B - Hanging Cleats
Type B - Drywall Frame Type B - Drywall Frame
Type B - HEVAC Frame Type B - HEVAC Frame
Type B - Fire Curtain Frame Type B - Fire Curtain Frame