Slide-on stub for installation in ducts of type SR in dimension range Ø560–900 where flange FL is used for joining.
After the duct has been shortened/fitted, add sealant etc between the swaged seams on the slide-on stub, after which the slide-on stub is inserted into the duct. The two swaged seams guide and retain the slide-on stub.
To finish off, the edge of the stub is swaged to both remove the sharp edge of the transition, and to fix the slide-on stub.
Please refer to the shortening instruction on page