The Circular Shut-off Dampers are designed for airflow shut-off and restriction in HVAC supply and extract air systems. Available in 7 nominal sizes and rated for up to 1500 Pa duct pressure, they meet EN 1751 leakage standards (blade Class 3, casing Class C) for reliable low-leakage performance.
These pre-assembled, ready-to-install units feature EN-compliant duct connections, external blade position indication and a low-maintenance mechanism, with optional electric, pneumatic, spring return actuators and end-position auxiliary switches.
Nominal sizes: 100, 125, 160, 200, 250, 315, 400
Application
Circular shut-off dampers for shutting off or restricting the airflow in ventilation ducts of air conditioning systems
