KRTK types of dampers are used for shut-off and regulating of air flow in low- to mediumpressure and velocity round duct systems. The
damper consists of an extended T-piece and two linked damper blades, so it can be used as bypass damper.
Casing tightness class B and shut-off tightness class 2 according to standard EVS-EN 1751:2014.
