AK and ZK Closure Flaps

Description

The stable and weatherproof AK series closure flaps are used to remove air from a room, while the ZK series flaps are used for both air supply and removal. The units are mounted on the outer side of the wall. In self-closing operation, the units’ slats are pressed against the closing springs by the effect of the air flow from a fan. The ZK series can be automatically opened in combination with an SM-2 motor drive.

Features

Closure flap AK

• Self-closing closure flap for air removal
• Galvanized contact protection grille 8x8mm acc. to EN294
• From nominal size 350 with center bar
• Resistant to outdoor weathering (UV-stable)
• Ambient temperature up to 60°C
• Frame traffic white similar to RAL9016; blades silver-grey

Closing flap ZK

• Automatic closing flap for ventilation and air extraction
• In combination with SM-2 servomotor
• Galvanized contact protection grille 8x8mm acc. to EN294
• From nominal size 350 with center bar
• Resistant to outdoor weathering (UV-stable)
• Ambient temperature up to 60°C
• Frame traffic white similar to RAL9016; slats silver-grey