letsgolakers24

His name is Jesus.

Are you sure he even needed a power drill Dr. Gupta?

Your reference did not go unnoticed. I love it.

Messi or Ronaldo?

No I'm kidding, we have enough of those discussions at /r/soccer (come check us out!). Have you met any really high profile players personally? How are their personalities?

On that note - here’s a discussion I’m trying to have (process engineer) with my project group. Do you have any experience regarding minimum velocity required or recommended when completing a hot tap? I know it’ll depend on liquid or vapor phase, but the concept would be to keep fluid running thru the line being hot tapped as a heat sink to remove heat from the weld location.

Thanks a lot for this. So we had a 150 psig steam hot tap we had to do for a flare project. We were going to hot tap downstream of a control valve, and the steam pressure would be close to atmospheric as it was close to the flare, therefore high velocities at the weld point. The velocity calcs that I was providing our project team were deemed too high by them, as they feared losing the coupon (for some reason, their experience had led them to believe to not exceed 20 mph...yes those exact units...when completing the weld). I thought shouldn’t be a concern for a low molecular weight vapor stream.

The above API doesn’t really bring this up, and brings up a separate point about metal temperature stress that I originally didn’t consider. Any thoughts on this?