Diaphragm flow control damper IRIS used for adjusting and measuring airflow in ventilation systems.
Execution diameter: Ø 125 mm
Designed for direct installation in ductwork, especially round ducts.
Unlike traditional throttle or blade dampers, this design operates on the principle of a diaphragm – the cross-sectional area of the air decreases or increases uniformly in a circular shape.
Advantages and Application
- More stable airflow.
- High accuracy in airflow regulation — the damper allows you to precisely set the required volumes of air.
- Suitable for balancing ventilation systems so that supply and exhaust air are balanced.
- Ability to integrate into various ductwork systems due to different diameters.
- Reduced noise level in the ductwork.

Power Supply LUCA 300W 24V IP20 (PS93)
Recessed Fixture Mirror Square Black GX53 (SL87)
Recessed Fixture Reflector Satin Chrome GX53 (SL26)
DK/EU-3103-WH
8931 EYE TONE BLACK/GOLD
Recessed Fixture Flora Chrome GU10 (SL49)
Recessed Fixture Turning Black GU10 (SL39)
Masking tape White (T) 














