BVN Louver grille BASP-400 galvanized sheet steel 400mm 153.07.006

The BASP-400 is a round louvred grille made from galvanised steel sheet with a nominal diameter of 400 mm. It closes the outlet openings of ventilation systems and fits pipework and fans of the same size. The galvanised steel gives the grille a durable, corrosion-resistant construction.

The louvres open in the direction of airflow: when the fan runs, the air stream pushes the blades open and air can leave freely. Once air movement stops, the louvres close again under their own weight.

When closed, the grille stops outside air from flowing back into the system and protects the interior from dust, draughts and foreign objects. Its backdraught protection suits industrial, agricultural and commercial ventilation systems where a simple, low-maintenance solution is required.