Hand adjustable flap HKS 45

Hand Adjustable Flap HKS 45 – Ideal for Larger Nominal Diameters

The Hand Adjustable Flap HKS 45 is the perfect solution for applications requiring a flap with a nominal diameter of 45 mm. This variant is characterized by its ease of use, allowing for manual adjustment via a pull cord. The HKS series is designed to prevent cold air ingress as well as the entry of dirt, birds, larger insects, and other unwanted objects into ventilation openings. This hand adjustable flap is made of UV-resistant plastic and is available in an attractive gray color.

Compared to the Hand Adjustable Flap HKS 15 with a nominal diameter of 15 mm, the HKS 45 offers a larger opening suitable for applications with higher air flow. Choosing the right nominal diameter depends on the specific requirements of your ventilation system.

• Easy Handling: Manual adjustment via a pull cord allows for flexible adaptation to changing conditions.
• UV-Resistant Plastic: Durability and resistance to environmental influences.
• Diverse Variants: In addition to the HKS 45, other nominal diameters such as 20 mm, 25 mm, 30 mm, 35 mm, 40 mm, and 50 mm are available to meet various needs.
• Effective Sealing: Prevents the ingress of cold air and dirt when the fan is not in operation.

Selecting the appropriate nominal diameter is crucial for the efficiency of your ventilation system. Here are the key similarities and differences of the HKS variants:

• HKS 15: Nominal diameter 15 mm, ideal for smaller applications.
• HKS 20: Nominal diameter 20 mm, suitable for medium air flows.
• HKS 25: Nominal diameter 25 mm, optimal for moderate requirements.
• HKS 30: Nominal diameter 30 mm, for larger air passages.
• HKS 35: Nominal diameter 35 mm, for high air flows.
• HKS 40: Nominal diameter 40 mm, for very high requirements.
• HKS 45: Nominal diameter 45 mm, for applications with maximum air flow (current variant).
• HKS 50: Nominal diameter 50 mm, for extremely high air passages.