Non Return Damper – Metal 150mm
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- SKU: NRD150-01
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The Non Return Damper Metal 150mm is a professional-quality inline damper designed to prevent reverse airflow in 150mm round duct systems. Constructed from robust metal materials, this damper provides reliable one-way airflow control for ventilation and exhaust applications.
The spring-loaded butterfly flaps open automatically when the connected exhaust fan or inline fan is running, allowing unrestricted airflow. When the fan stops, the flaps close securely to prevent reverse airflow from entering the building through the duct system. This effectively blocks cold outdoor air, cooking odours, moisture, insects, and other external contaminants.
This metal non-return damper is suitable for use with bathroom exhaust fans, kitchen rangehood ducting, laundry ventilation, and general HVAC applications where backdraft prevention is essential. The metal construction provides superior durability and rigidity compared to plastic alternatives, ensuring consistent performance in all conditions.
Easy to install within standard 150mm round ducting runs. Compatible with most 150mm inline fans, exhaust fans, and round ducting accessories. The damper should be installed with the correct airflow direction as indicated on the unit for proper operation.
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