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Installation Instructions

Technical specificationsX

Non-return damper 9/WDS ABL

For the RA 15-60 and the AB 30/60

The 9/WDS-ABL is a non-return damper specially designed for our RA 15-60 and AB 30/60 exhaust fans. Depending on the fan type, one side is fixed so that the wind pressure protection for the corresponding fan functions properly.


The installation of the non-return damper 9/WDS ABL is carried out in the round duct 9/R 160.

Art.-no. 39970