Thanks everyone.

The issue is we are stress analyzing one of a existing piping systems. No reference drawings available apart from a old isometric. The isometric says 150 deg lobster bend. The line is insulated at site to check what is actually existing.

I have used multiple bends as per Richard's suggestion and covered it as assumption in the report. In the complete analysis this assumption seems to be good enough, that there is sufficient flexibility on either sides of the bend and it is not close to any of the nozzles etc.

Thanks again everyone.