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.

Recessed GX53 Light Fixture (SL83)
Polycarbonate Diffuser for LED profile NEXTEC 200 cm PC032426 (LC5)
Recessed Fixture Vortex Grey Matte GU10 (SL93)
8195 HALO 19
Wireless Switch DIM NEXTEC Sky (RNS4)
Recessed Fixture Reflector Satin Chrome GX53 (SL26)
Recessed Fixture Jana GX53 (SL1)
Recessed Fixture Yustina GX53 (SL3)
Recessed Fixture Erica GX53 (SL13)
Recessed Fixture Mramor Gold GX53 (SL21)
Linear LED Lamp 18W 1200mm↔Ø28 mm (LL19)
Anodized aluminum profile for stretch ceiling (AT30)
Shadow Ventilation Diffuser 3D 100 mm (VC23) 














