What about the following two solutions...?

I am not stating that it will be technically correct but just wanted to pass a point here and further improve my knowledge at the same time.

1. If it is a high pressured system, and there are break out flanges just above the nozzle, why not select one of those grayloc/techloc hub clamp flanges. It will save space and reduce your flange weight definitely. Sustain loadings will be reduced and eventually assist with the thermal loadings.

2. If there is a reducer involved, try to be place it a slight distance away from your nozzle and not at the nozzle. Most of the time there is a reduction in size of the piping. Similiar to a pump system. This may help with the reduction in sustained loadings.

Once again, this is just my opinion and I am open to any criticism in order to learn.

Cheers.