Vent duct condensation trap fitting

[DIYspanner]

I have 100mm ceiling fans that duct out through the roof. I intend to fit condensation traps. TS have some in stock but they don't fit the duct collars of the fans which I've measured at 100mm o/d. The TS Condensation Traps have too large an i/d which has me baffled.

Can anyone advise how these traps are meant to be fitted please?

 

[stem]

The condensation trap isn't designed to fit onto the fan itself. The ducting is designed to fit over the fan outlet, and to do so, the duct has a larger diameter than the fan spigot. It's the larger diameter of the duct that then fits into the condensation trap.

 

[DIYspanner]

Yes, I'm all sorted now. Thanks for posting.