Closing flaps for ventilation. With galvanized protective grille. From nominal size 35 with a central bar to increase the stability of the flap. Recommended accessories: ZVR connecting frame for attaching the closing flaps AS and RS to the fan instead of to the wall.Article: AS 50, Air direction: Ventilation, Installation: outside, Installation location: wall, Installation position: vertical / horizontal, Material: plastic, weather- and UV-resistant, Color: traffic white, similar to RAL 9016, Slat color: silver gray, Weight: 1.855 kg, Weight with packaging: 2.23 kg, Flap type: self-tapping. opening/closing, nominal width: 500 mm, width: 578 mm, height: 578 mm, depth: 41 mm, width with packaging: 645 mm, height with packaging: 590 mm, depth with packaging: 50 mm, ambient temperature: 60 °C, suitable for box fans: no, suitable for roof fans: no, suitable for duct fans: no, suitable for heat recovery systems: no, suitable for wall-mounted fans: no, suitable for wall-mounted fans: yes, suitable for residential fans: no, suitable for centrifugal fans: no, suitable for circulation fans: no
| Property | Value |
| Material: | Plastic |
| Front height: | 578 mm |
| Front width: | 578 mm |
| Depth: | 41 mm |
| Air direction: | exhaust |
