Creating Curved Connecting Geometry

Oh wise ones, how do I achieve the middle section as shown in the drawing? I tried stitching the lines manually with hidden geometry turned on and also tried lofting it, which worked okay, but was then stumped at how to achieve the radius. Solid tools perhaps? just not sure how to execute it properly.
Thank you in advance.

Pipe1.skp (931.0 KB)

If it’s just for a presentation that looks similar


otherwise, to create exactly this could be useful

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Mihai thanks for this! Knew there would be a simple solution. It’s mainly just for presentation purposes, so the technique you showed is perfect.