dcasto
Chemical
- Jul 7, 2001
- 3,570
I don't have all the details so I'm just checking on a proceedure needed to accomplish the following. I have an air cooled exchaner rated at 1050 psig AT 650F. I want it in a new service rated at 1150 psig at 250 F. Can I redo the calculations for the box and nozzel with the stress allowed by the materials at the lower temperature and the do a hydrotest and reuse the cooler. Also, would it require an R-stamp or if in a noncode state a new tag by the owner stateing the new rating?
Then to add to the complexity, I have cooler rated for 1050 at 250F and I would like it to operated at 670 at 550F, do the same thing?
Then to add to the complexity, I have cooler rated for 1050 at 250F and I would like it to operated at 670 at 550F, do the same thing?
