Koolair’s LV intumescent grilles are used to compartmentalise zones in the event of a fire or high temperature gases.
The LV grilles contain an intumescent material that expands in the event of fire to seal the ventilation duct in accordance with BS 476:Part 20 and 22 and UNE-EN 1634-1:2000.
There are two models in the LV grille range, each with different characteristics to allow the correct selection to be made depending on the desired application.
Models
Resistance to fire and hot gases for up to 60
minutes.
LVV40. EI30/EI60 intumescent rectangular grille with
straight fins and no frame.
LVC40. EI30/EI60 intumescent round grille with
straight fins and no frame.
Resistance to fire and hot gases for up to 120
minutes.
LVH44. EI90/EI120 intumescent rectangular grille
with straight blades and no frame.
LVHC44. EI90/EI120 intumescent round grille with
straight blades and no frame.
Dimensions
LV and LVH rectangular models:
Length: 100 to 600 mm
Height: 100 to 600 mm
LVC and LVHC round models:
Diameter: 100 mm to 600 mm (according to nominal
diameter of standard PVC ducts or pipes).