Non Return Damper – Plastic 150mm
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- SKU: NRD150-02
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The Non Return Damper Plastic 150mm is a practical inline damper designed to prevent reverse airflow in 150mm round duct systems. Manufactured from durable lightweight plastic, this damper provides effective one-way airflow control at an economical price point.
The gravity-operated flaps open freely when the connected exhaust fan or inline fan creates positive airflow, and close automatically by gravity when the fan stops. This prevents cold outdoor air, cooking odours, humidity, insects, and external pollutants from entering the building through the ductwork when the ventilation system is not operating.
This plastic non-return damper is ideal for residential bathroom exhaust fans, kitchen rangehood ducting, laundry ventilation, and general HVAC applications. The lightweight plastic construction makes it easy to handle and install, while still providing reliable backdraft prevention for standard residential ventilation systems.
Simple to install within 150mm round ducting runs. Compatible with most 150mm inline fans, exhaust fans, and round ducting components. Ensure correct installation direction as marked on the unit for proper operation. An economical alternative to metal non-return dampers for residential applications.
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