QF Damper Manual

Manual QF dampers (Nordfab type SBBA) are the simplest way to shut off or open individual drops in a QuickFit extraction system by hand. Close the dampers on idle machines and the extraction fan’s full suction goes to the drops that are actually working — often the difference between one fan coping and not.

Galvanised steel with rolled QuickFit ends, each damper clips into the run with Quick Clips in seconds. Fourteen diameters are available: 80, 100, 125, 140, 150, 160, 180, 200, 225, 250, 300, 315, 350 and 400mm.

Need airflow that follows the machine automatically? See the automatic QF dampers, or use a regulating damper where the setting should be locked in place.