IRISIris damper

The Zest Iris Duct Dampers is an ideal air flow regulator and measuring device for circular ducts. Accurate control, smooth and quiet air flow and reliable measuring results are achieved by the special iris construction.

The body and valve of the iris damper are made of galvanized steel DX53 D+ Z275 or stainless steel 316L. The seal ring has double lips made of EPDM rubber. Iris damper typically has a plastic regulator nut and a plastic key. The class of air tightness is a C class according to the EN1751:2014