Gravity Louver

Gravity Louver is designed for positive-pressure air-conditioned rooms, enabling automatic air exhaust. It typically features vertical blades that isolate indoor and outdoor air circulation. When indoor pressure exceeds outdoor pressure, the airflow pushes the blades open to expel indoor air. Conversely, if indoor pressure is lower than outdoor pressure, air is prevented from entering the room-thanks to its integrated single-track non-return function.

1. The GL-VA gravity louver features an anodized finish and can be precisely adjusted for smooth operation. Optional colors include RAL9010 and RAL9016.
2. The blades of this gravity louver open only when the exhaust fan is in operation. Once the fan is turned off, the blades close automatically to prevent rain, dust, and insects from entering the room.