Designed to separate sand and dust from the air stream. Generally used for ventilation applications and at the inlet duct of air handling unit.
Surface of the louver is fixed flush with the plane of the wall. Composed of two sets of inverted U-channels mounted vertically in two opposite rows.
The filtered sand will be drained through a sand chute. Sand chute is an inclined tray fixed at the bottom of the louver for the purpose of draining sand.