Lab & Fume Controllers > Auto-Flow^® > Dampers

The AF-DPR-A Precision Damper Assembly is an air control butterfly damper used for fume hood control and room supply and exhaust airflow control. Constructed of PVC, it has excellent noise attenuation characteristics. The structural stiffness of the PVC body, close tolerance fit of the damper blade and low friction bearings make for a control damper that can provide high turn down without seals, smooth operation, and low control hysteresis.