Iris damper (airflow regulator) by VSP.

The damper is used for precise airflow control in round ducts of supply and exhaust ventilation systems. The diaphragm of overlapping blades smoothly changes the flow cross-section, allowing the required air volume to be set using the printed scale.

Two pressure-differential measurement ports make it possible to determine the actual airflow and balance the system without removing the damper. The locking lever holds the set position securely. Galvanised steel protects against corrosion and adds strength. Diameter Ø100–800 mm.

The iris damper is suitable for supply and exhaust ventilation systems in residential, commercial and industrial buildings.