Has a turning, circular blade. The blade is stepless adjustable 0–90°. The damper is used when you have lower demands for shut-off capacity. The damper admits an insulation thickness of approx. 50 mm.

The damper can on occations be used for regulation.

Setting the blade angle at the rim of the cup (a)

a = 0° = open blade
a = 90° = closed blade

There are no softwares available for download for this particular product.