IRIS Damper 200mm Dia

200mm Diameter IRIS Damper.
IRIS damper also known as Zest Iris duct damper.

The IRIS damper acts as an ideal air flow regulator and measuring device for circular ducts, allows for accurate control, smooth and quiet airflow and reliable measuring results. 

The IRIS dampers are manufactured using only the highest quality galvanised sheet steel and is fitted with an adjustment scale, measuring connections and has a tamper proof control knob which is adjusted by the spanner/lever.
Spigots are fitted as standard with safe seal rubber gaskets which will slip inside our SP spiral pipe.

Please note, we recommend for best results the IRIS damper to be installed in straight runs of duct work.  If conveying waste of any sort please refer to our blast gates or shut off gates.