Even though you installed a ridged flange it will eventually leak. There are only 2 bolt holes?
W/a V-band clamp, there is constant pressure applied evenly all the way around the flange.
I work on multi million dollar airplanes & that is the style flanges they all use & they do not leak. The planes I work on have been using them since the 1960's & are used still today.
Just dont want you go go through leaks, especially if you can do it now before it gets installed.
There are so many CO's making these, there are low quailty ones,so watch out for thin sheet metal ones.
They are pretty affordable & I do not see why anyone would want to use an inferior design.
