VKS-ALU 25, automatic closure flap

Efficient Solution with the VKS-ALU 25, Automatic Closure Flap

The VKS-ALU 25, automatic closure flap from CasaFan is the ideal choice for anyone looking for a reliable and efficient solution to prevent cold air ingress and dirt in ventilation openings. This specific variant with a nominal width of 250 mm offers the same high-quality features as the base model, the VKS-ALU 20, automatic closure flap, but with a larger diameter, making it particularly suitable for a wide range of applications in air circulation.

The automatic slats of this closure flap open and close automatically through the airflow of the fan and securely close by gravity. They are made of anodized aluminum, making them particularly weather-resistant and UV-stable. The sealing edge ensures a quiet and vibration-free closing process, even at high airflow speeds of over 10 m/s. Installation is simple and straightforward, both horizontally and diagonally.

Variants and Their Applications

The VKS-ALU series includes several variants that mainly differ in nominal width. In addition to the VKS-ALU 25, variants with diameters ranging from 300 mm to 700 mm are also available. Here is an overview of the key similarities and differences:

• Material: Anodized aluminum, robust and durable.
• Operation: Automatic opening and closing by airflow.
• Sealing: Soft PVC sealing lip for quiet operation.
• Installation: Easy wall mounting with screws and plugs (included).
• Maximum Temperature: Up to +60°C, ideal for various locations.
• Application Area: Suitable for exhaust operation, not for supply air.

Choosing the right variant depends on the specific application and the requirements for air circulation. The VKS-ALU 25 is particularly recommended when a medium diameter is needed and high airflow is to be ensured.