Multi-Leaf Volume Control Dampers.

AJS manufacture Volume Control Damper, the multi leaf dampers help to regulate the the airflow pressure through both rectangular and spiral/circular ductwork systems. These can be controlled with either an added motor or manual hand control. The Multi leaf has multiple blades which have a maximum rotation of 90 degrees manufactured from aluminium, as is the outer casing. All multi leaf volume control dampers are certified and quality approved pressure tested by BSRIA, the industry's regulatory body.