Acoustic, smoke & fire containment systems

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LVH Intumescent Fire Door Grilles

The Lorient LVH Intumescent air transfer grilles are specifically designed for use in fire rated door assemblies where pressure relief or extra ventilation is required.

Providing free airflow at ambient conditions; when exposed to elevated temperatures the intumescent material in the slats expands to create a physical barrier to fire and hot smoke.

Fire tested in accordance with AS1530.4 on most AS1905.1 proprietary fire door types, providing up to 4 hour fire resistance.  

Grill Sizing & Approved Fire Resistance Ratings 

Fire Door Type E-Core
Mini or Maxi 
Firecore
Mini or Maxi 
Pyropanel FR 
Maxi  
Pyropanel FR
Mini
Pyropanel Pandor 
Mini or Maxi
300 x 300mmFRL -/120/30
(3 per leaf)
FRL -/120/30
(1 per leaf)
-/240/30
(1 per leaf)
-/120/30
(up to 3 per leaf)
-/120/30
(1 per leaf)
-/60/30
(up to 3 per leaf)
-/60/30
(1 per leaf)
450 x 450mmFRL -/120/30
(up to 3 per leaf)
FRL -/120/30
(1 per leaf)
-/240/30
(1 per leaf)
-/120/30
(up to 3 per leaf)
-/120/30
(1 per leaf)
-/60/30
(up to 3 per leaf)
-/60/30
(1 per leaf)
600 x 300mmFRL -/120/30
(up to 3 per leaf) 
FRL -/120/30
(1 per leaf) 
-/240/30
(1 per leaf)
-/120/30
(up to 3 per leaf)
-/120/30
(1 per leaf)
-/60/30
(up to 3 per leaf)
-/60/30
(1 per leaf)
600 x 600mm -/240/30
(1 per leaf)
-/120/30
(1 per leaf)
-/60/30
(1 per leaf)

For more information, please call our Technical Team on +61 (02) 9907 6221