Dear all,

For stress analysis which piping connected to boiler and a inline desuperheater (with bypass), I have some questions as follows:

1. What code should we use, B3.1 or B31.3 ?
2. I dont have experience with desuperheater, so what should be considered for this device (in stress analysis view point)?
3. How to break temperature at desuperheater (with bypass)?
4. Is there any vibration due to desuperheater? Do we need to consider dynamic analysis?

I already use the search function, and it doesn't help so much.

I hope someone can help.

BR.