• Control damper for different airflow and duct
pressure control applications
• Pressure-independent operation
• Galvanised steel construction with insulation
• Tight construction at closed damper position
• Circular duct connection equipped with rubber
gaskets
• Factory-set airflow range limits (min./max.
airflow rates)
Product models and Accessories
• Additional insulation option
• Sound attenuator as an accessory
• Water and electric reheat units
• Different outlet plenum options
• Access hatch available as an option
Control Unit (CU)
The HFR airflow control damper can be equipped
with several different control units for either
airflow or duct pressure control.
Airflow control
• For supply and exhaust installations
• Complete shut-off function
• Operating ambient temperature range of
0 to 50 ºC
• Ambient relative humidity < 95%,
non-condensing