Hand adjustable flap HKS 40

Hand Adjustable Flap HKS 40 – Optimal Solution for 40 mm Nominal Diameter

The hand adjustable flap HKS 40 is an ideal solution for ventilation applications with a nominal diameter of 40 mm. It effectively prevents cold air inflow when the fan is off and stops dirt, birds, and larger insects from entering ventilation openings. This variant is part of the HKS series, which stands out for its easy handling via a pull cord.

In comparison to the Hand Adjustable Flap HKS 15, designed for a nominal diameter of 15 mm, the HKS 40 provides a larger opening that may be necessary for specific applications. The different nominal diameters (20 mm, 25 mm, 30 mm, 35 mm, 40 mm, 45 mm, 50 mm) allow for flexible adaptation to the respective requirements.

Here are some key similarities and differences of the variants:

• Nominal Diameter: The HKS 40 is designed for 40 mm, while other models offer various nominal diameters.
• Material: All variants are made from UV-resistant plastic, ensuring their durability.
• Handling: All models in the HKS series are hand adjustable and allow for easy operation.
• Application Area: The HKS 40 is particularly suitable for applications where a larger air passage is required.

The decision to choose the HKS 40 should be made when a nominal diameter of 40 mm is required to meet the specific needs of your ventilation system.