Fantech Iris Dampers

The IR Iris Damper is the ideal device for measuring and adjusting airflow through a duct. The design of the adjustable aperture ensures low turbulence resulting in minimal self-generated noise.

The damper is manufactured from galvanized sheet metal and is fitted with a rubber seal tested for air-tightness. The IR enables the taking of precise air flow measurements at all points including points close to duct deviations such as T-junctions and bends, and points in front of other supply-air devices.

model description usually ships price QTY
IR 4 Fantech 4" Round Duct Iris Damper - Manual (Not Full Closure) 1 Day. In-stock $59.70
IR 5 Fantech 5" Round Duct Iris Damper - Manual (Not Full Closure) 1 Day. In-stock $68.10
IR 6 Fantech 6" Round Duct Iris Damper - Manual (Not Full Closure) 1 Day. In-stock $70.40
IR 8 Fantech 8" Round Duct Iris Damper - Manual (Not Full Closure) 1 Day. In-stock $76.00
IR 10 Fantech 10" Round Duct Iris Damper - Manual (Not Full Closure) 1 Day. In-stock $135.20
IR 12 Fantech 12" Round Duct Iris Damper - Manual (Not Full Closure) 1 Day. In-stock $156.70
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fantech iris

 

Stocked in both Oregon and New York state. See transit maps below.

Some products might ship from multiple warehouses.

Do you have questions about the products on this page?

Click on the ? image on the left or this link to ask us your questions!
#1 Q:   Do you have a 14 iris damper that perhaps isnt listed?
A:   Sorry, Fantech does not make a 14 inch version

       Asked on 2020-01-29 by Jeff
#2 Q:   In the description it says dampers include a calibrated airflow measuring device. Could you tell me what is that device.
A:   You can take measurements off the IR dampers to determine airflow. More info on page 1 here: http://www.hvacquick.com/catalog_files/Fantech_IR_Catalog.pdf

       Asked on 2018-01-16 by Drake
#3 Q:   Can these dampers seal completely (or nearly completely)? What is the smallest hole size when fully closed?
A:   These are for measuring airflow...there are pressure taps and a specific sized aperture to send the air through...in the pic, they are almost fully closed.

       Asked on 2015-07-09 by MD
#4 Q:   Are they available in all SS construction - for labratory use ?
A:   Not from Fantech...they offer only the galvanized steel.

       Asked on 2014-05-20 by John G
#5 Q:   hello, what is the fan made of?
A:   This is a damper to measure airflow through a specified aperture and made of galvanized steel.

       Asked on 2013-07-22 by vinny
 

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