Rectangular fire resistant ventilation grilles GV1 are applicable for fire compartimentation within buildings. The grille is made of lamellas, which swell at a temperature of approximately 100°C, thereby closing the opening. The fire resistant grilles are only applicable in systems without pressure or systems where in case of fire, the installation immediately shuts down, thereby assuring no pressure on the fire resistant grilles
Explanation
GV1 = Type of fire resistant grill
400 = Length of grill
200 = Height of grill