My dry air setup for the plasma

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Air enters copper T with trap in the first pic. The second is 70 feet of copper pipe later where the plasma air source will be connected. From there the three part drying setup is attached, this starts with a coalescer, then two dessicant columns in series. Then thru the regulator / pressure gauge and on to the plasma. I think that will keep things dry enough for my hobbiest needs. I hope Jim approves! Sweating copper is fun and easy. Any comments are always welcome.Sent from my ADR6400L using Tapatalk 2 Attached ImagesMiller diversion 165Miller mig 211Hypertherm pm 30Milwaukee 6230 14 inch chop sawMd 45 mag drill (RIP; fell on its head)New MD 45! Thanks to the esposa!Finally got an O/A setup
Reply:Very nice! If that don't do er, What will?
Reply:I hope you used silver for the joints
Reply:Originally Posted by acourtjesterI hope you used silver for the joints
Reply:Originally Posted by umahunterWhy ???
Reply:Your system looks good, overkill, but good. Don't worry copper and 50/50 solder is standard in industry for low pressure compressed air service. Silver solder is used in higher temp/pressure.Tim Beeker.
Reply:I think ill be fine. I cut some 10 ga Ss this am with good results. Dry air is goodSent from my ADR6400L using Tapatalk 2Miller diversion 165Miller mig 211Hypertherm pm 30Milwaukee 6230 14 inch chop sawMd 45 mag drill (RIP; fell on its head)New MD 45! Thanks to the esposa!Finally got an O/A setup
Reply:Depending upon the type of dessicant used in those two filters it may/may not be a good idea to add a particulate filter downstream from them prior to your plasma cutter.Lincoln PrecisionTig 275Miller 251Miller DialArc 250Bridgeport millHossfeld bender & diesLogan shaperJet 14 X 40 latheSouth Bend 9" 'C'Hypertherm 900Ellis 3000 band saw21"Royersford ExcelsiorTwo shops, still too many tools.
Reply:The coalescer is before the dessicant ,the dessicans are the last thing in line prior to the plasma cutter Sent from my ADR6400L using Tapatalk 2Miller diversion 165Miller mig 211Hypertherm pm 30Milwaukee 6230 14 inch chop sawMd 45 mag drill (RIP; fell on its head)New MD 45! Thanks to the esposa!Finally got an O/A setup
Reply:Where do you guys buy air components like that? Usually only see the chinese made stuff at local and big-box stores here.Bruce
Reply:Originally Posted by [email protected] coalescer is before the dessicant ,the dessicans are the last thing in line prior to the plasma cutter Sent from my ADR6400L using Tapatalk 2
Reply:Oh I see, gotcha!Miller diversion 165Miller mig 211Hypertherm pm 30Milwaukee 6230 14 inch chop sawMd 45 mag drill (RIP; fell on its head)New MD 45! Thanks to the esposa!Finally got an O/A setup
Reply:Looks Good Eliot, That should get the air dryer anyway. I made one sorta like that back a couple months ago and works great and portable!! Ok not to be a D-ck but man get a cover on that 220 outlet. Dale
Reply:Yup, 'filter' before the dessicant to try and get any particulates or oil or 'liquid' water out, then the dessicant to get water vapor out, then another filter to make sure no dessicant 'dust' is going downstream.http://www.wilkersoncorp.com/products.asphttp://www.wilkersoncorp.com/9EM-TK-...-Technical.pdfhttp://www.wilkersoncorp.com/9EM-TK-...ant-Dryers.pdf'Critical' filter situation is usually something like this:particulate filter (remove 'big' particles down to ~ 5 micron or so  and 'gross' oil/water droplets) > coalescing filter  (remove oil/water vapor down to about 0.01 micron or so) > dessicant (remove most water vapor, depending on model can give dew-points down to -100F) > after-filter (remove possible dessicant dust) >clean dry airClean dry air is good.    The best laid schemes ... Gang oft agley ...
Reply:Originally Posted by AndyALead/tin solder or silver plumbing is too soft and has a lower melting point.  The joints *may* blow out.  Particularly the ones near the compressor that get hot.  They *may* also hold together for years, but why take any chances.Lead/tin is definitely a no-no on air conditioner piping because it'll see higher pressures and the white powder corrosion will kill your system.Yeah, the hard solder (copper/silver/phos) is more expensive, but a little bit goes a long way.  5% silver will run you roughly $50 per pound.Be aware that I'm not talking about the 'silver solder' or 'lead-free' solder for plumbing.  The hard solder should have a melt point above 1000F and will probably require a O/A or acetylene/air torch.  Propane/air is probably not going to cut it (although I've never tried).  Propane/oxygen will probably hot enough.
Reply:Originally Posted by MondoBlah.  Where did you get this stuff?60/40 tin/lead will not fail at any pressures or temperatures that will be developed by any normal sized shop/garage compressor.   A properly sweated joint in copper tubing will survive any pressure the copper tubing is rated to support.  Joint failure will be the result of improper procudure when assembling and sweating the joint!The objections to lead-based solder is to get the lead out of the environment.  It cannot be used in potable water systems.- Mondo
Reply:Originally Posted by rlitmanThe air temperatures created within a single stage air compressor are above the melting point of 60/40 solder, but that's the air temperature, not the temperature that the pipes reach.  Anyway, once you get a foot of plumbing away from the compressor head this is no longer an issue, and when you are drawing air from the tank, this is certainly not a problem.  BTW, this is why the manufacturer does not use a soldered connection between the pump and the tank.Back to the ridiculous suggestion, AndyA, I suggest you consult your copper pressure tables again.  In the scenario of copper plumbing and an air compressor, ordinary lead-free solder will actually give a higher maximum pressure rating than silver solder.  This is because silver soldering the joint will ruin the temper of the copper.