Ductlab · Duct Accs.

Backdraft Non Return Damper 150 – Metal

The Backdraft Non Return Damper 150 – Metal is an essential component for any ventilation system that requires protection against backflow of air. This damper is constructed with high-quality metal to provide durability and strength, ensuring long-lasting performance. The damper features a spring-loaded flap that remains open when air flows in the correct direction, allowing for effective ventilation. However, in case of backflow, the flap automatically closes, preventing the entry of unwanted air, dust, or other contaminants. This non-return damper is easy to install and maintain, making it a popular choice for various industrial and commercial applications. The damper has a diameter of 150 mm, making it ideal for medium-sized ventilation systems. The metal construction of the damper makes it highly resistant to corrosion, ensuring its functionality even in harsh environments. It is suitable for use in areas where hygiene and cleanliness are essential, such as hospitals, laboratories, and food processing plants. Overall, the Backdraft Non Return Damper 150 – Metal is a reliable and efficient solution to prevent unwanted air and contaminants from entering a ventilation system. Its durable construction and ease of installation make it an ideal choice for any industrial or commercial application.

Backdraft Non Return Damper 150 – Metal

How the profiles compare

Air velocity through each Ductlab profile at the same airflow — the flatter the duct, the faster the air has to move.

Metric US Customary

    Velocity is calculated from each profile's nominal free area (v = airflow ÷ area). Use it to compare profiles; refer to the installation guide for recommended limits.

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