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 Fixture Yustina GX53 (SL3)
Spatula for stretch ceiling installation (SS104)
Spatula for stretch ceiling installation (SS8)
LED Module NEXTEC 0.24W 12V PI021321 (LM11)
Recessed Fixture Flora Black GU10 (SL52)
PVC Wall Profile PREMIUM (PW1)
Weatherproof luminaire Novodworski Agnes 8112 White IP44 LED 16W 3000K
Recessed lamp Vesta (SL55)
Masking tape White (FL)
S 320 White Satin
Spatula for stretch ceiling installation (SS23)
Diffuser for Stretch Ceilings CONCEILING D100 (VC26)
Glue activator 200ml (SA7)
Smart Panel Remote Controller Mi Light 4 Zones RGB+CCT (RNS17)
7666 EYE TONE III
L 320 White Lacquered
LED Module 0.72W Blue 12V (LM12)
Spatula for stretch ceiling installation (SS12)
PVC Wrinkle Remover (WR1)
Superglue COSMOFEN 20g (SG13)
Recessed Fixture Mirror Square Black GX53 (SL87)
Recessed Fixture Filomena Black GU10 (SL61)
Recessed Fixture Erica GX53 (SL13)
Wireless Switch Miboxer SC Black (RNS28)
Recessed Fixture Frida Black GU10 (SL51)
Recessed Fixture Reflector Satin Chrome GX53 (SL26)
Harpoon Cold Streth (CS1)
Recessed luminaire Round NEXTEC 16W 4000К 1440 lm (SL91)
LED Strip Mounting Tool (LI1)
LED Lamp 4000K 11W GU5.3 (LL37)
Spatula for stretch ceiling installation Right (SS11R)
PVC Profile Separator (PS1) 
















