Apr 26, 2010 #1 mjpetrag Mechanical Oct 16, 2007 224 Found this in a 50# condensate pipe run. Any ideas on the damage mechanism? It's carbon steel pipe. -Mike
Found this in a 50# condensate pipe run. Any ideas on the damage mechanism? It's carbon steel pipe. -Mike
Apr 26, 2010 1 #2 rustbuster Petroleum Jul 7, 1999 289 I assume it is pitting corrosin in the photo? if so CO2 is likely the corrodent. You will need to vent the non-condensibles or provide additional amine inhibitors. Upvote 0 Downvote
I assume it is pitting corrosin in the photo? if so CO2 is likely the corrodent. You will need to vent the non-condensibles or provide additional amine inhibitors.
Apr 26, 2010 #3 EdStainless Materials May 20, 2004 16,056 Or is it blistering? What does it look like lightly cleaned? = = = = = = = = = = = = = = = = = = = = Plymouth Tube Upvote 0 Downvote
Or is it blistering? What does it look like lightly cleaned? = = = = = = = = = = = = = = = = = = = = Plymouth Tube
Apr 27, 2010 Thread starter #4 mjpetrag Mechanical Oct 16, 2007 224 It looks like CO2 pitting with wormholes. I found a picture of it here. http://octane.nmt.edu/waterquality/corrosion/image/I-12.gif Looks very similar to the previous photo. -Mike Upvote 0 Downvote
It looks like CO2 pitting with wormholes. I found a picture of it here. http://octane.nmt.edu/waterquality/corrosion/image/I-12.gif Looks very similar to the previous photo. -Mike
Apr 27, 2010 #5 brimmer Petroleum Mar 26, 2007 349 Rounded pits with steep walls, I woulg agree looks like CO2 pitting, have water in your condensate accumulating/condensing here. Upvote 0 Downvote
Rounded pits with steep walls, I woulg agree looks like CO2 pitting, have water in your condensate accumulating/condensing here.
Apr 29, 2010 #6 MJCronin Mechanical Apr 9, 2001 5,087 Try this one... http://pipelinemaster.wordpress.com/ CO2 corrosion (carbolic acid is the classic mechanism in condensate piping systems. But your picture looks more like an O2 corrosion mechanism -MJC Upvote 0 Downvote
Try this one... http://pipelinemaster.wordpress.com/ CO2 corrosion (carbolic acid is the classic mechanism in condensate piping systems. But your picture looks more like an O2 corrosion mechanism -MJC
Apr 30, 2010 #7 rconner Civil/Environmental Mar 18, 2005 1,733 Was just curious (for a little bit more info), what was the "clock" orieentation of this damage? Upvote 0 Downvote
