GRAVITY LOUVER (GL)
DESCRIPTION:
Aluminum Gravity Louvers (GL) grilles are intended for exhaust ventilation systems and used as a non-return air valve for automated closing of openings and switching off the ventilator.
Grilles are fitted with easily rotating aluminum louvers, mounted in a frame. Louvers are installed in such a way that when the ventilator is switched off they are closed by gravity. Grilles are mounted in air ducts by means of spring-loaded clamps fitted on side walls of grilles.
Features:
- Material: Aluminium extruded profile frame, aluminium louver.
- Construction: fitted with easily rotating aluminum louvers, mounted in a frame.
- Powder Coating Colour: RAL 9010, RAL 9016 or customised.
- Cores: Non-removable.
- Frame: Bevel face or louver face.
Alias:
- Gravity Louver
- Sand Trap Louver
Diagram:

Technical Data:
| ITEM | NECK SIZE | FACE SIZE | HEIGHT |
|---|---|---|---|
| GL6 | 145*145 | 195*195 | 45 |
| GL8 | 195*195 | 245*245 | 45 |
| GL10 | 245*245 | 295*295 | 45 |
| GL12 | 295*295 | 345*345 | 45 |
