Galvanized steel frame, the lower part of which has a series of hole to let the dust get out.
Flaps consisting in vertical C profile opposing one another and fixed to the frame with rivets.
With self-drilling screws on the collar or, on request, with wall brackets.
Maximum operating temperature: 200°C
Maximum operating pressure: 1.000 Pa
GAS grilles are used as coarse pre-filter. It is based on the inertial separation’s principal and it takes advantage on the greater inertia of solid materials (dust) compared to air. GAS grilles are used on the external air intake of the ventilation systems in particularly dusty area.