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Topic Review (Newest First)
09-02-2011 07:08 AM
keithmiller69 NO
I did not use for pvs pipes for air supply
09-02-2011 07:07 AM
shine if not pvc then copper but there will be no iron pipe in my shop. it rusts then holds moisture and oil vapors which end up in the booth.
09-02-2011 06:51 AM
T-bucket23
Quote:
Originally Posted by Chevymon
No, I haven't used it, but my common sense tells me that it won't cool like metal.
Iron pipe is the safest and is required for commercial or industrial here. I have a good friend who installs compressors for a living, he has customers who run PVC but does not recommend it. He installs huge systems, to watch him do pipe is amazing. he can put iron together as fast as most people can do copper.
09-02-2011 05:41 AM
shine will likely be copper or pet . sch80 pvc is some pretty tuff stuff.like i said it has been in every shop since 78. i just want that loud aggravating compressor up the hill in it's own little building. tired of hearing it.
09-02-2011 05:36 AM
da34guy Shine, When ya do it go copper inside.
In my new shop, ran copper 3/4 (almost 300 linear ft) with all fittings for less than $250.
Just my 2 pennys
09-02-2011 05:14 AM
shine sch 80 pvc is pretty tuff. i have had sch40 in the shop for 13 years. when i move the compressor in the fall i will replumb the shop. from compressor to the shop will be pvc underground. have not decided on what will go in the shop yet. pvc / pet /copper will be the choices. abs for air is higher than copper.
my compressor will still be set at 80 lbs.
08-31-2011 07:17 PM
tech69
Quote:
Originally Posted by shine
sch40 jet stream in every shop since 78 and here at the farm for 13 years. i have never had a failure nor have i seen one.
I haven't either but imagine old pvc under pressure wouldn't take much to explode like from a wrench dropping on it or something.
08-31-2011 05:09 PM
trees Shine, you asked why I run 175 PSI and I only have one lame answer: That is what the pressure regulator is set at. The 80 Gal tank and and 120 feet of delivery line that is all inside the walls and 2 100 ft hose reels provide a pretty good reservoir of air. My sand blaster is a el cheapo pressure feed unit that hold 100#s of sand. I set the regulator at the hose reel at 100 psi and the compressor cycles through out the blasting period. I have not had a moistur problem blasting since I have 4 5 foot drops with drains, a moisture separator and a toilet paper filter before the hose reel. I have never gotten water from the last two drops and very little from the moisture seperator which is between #2 and #3 drops. All my air tools are set for 90 PSI and the plasma cutter is usually around 70 plus or minus 5 pounds operating pressure. I have a couple of 20 ton air jacks and I turn them up to 120 on occasion. I use 110PSI on the air jack on my lift (operating manual suggestion). So you can see I don't need the 175 PSI. I would like your and oldred's inputs on the merits of turning it down ie energy savings, less wear on pump etc.

Trees
08-31-2011 01:04 PM
NEW INTERIORS
Quote:
Originally Posted by Chevymon
My opologies, sounds like everybody has dry air. I noticed a little moisture in my lines a couple weeks ago, so I upgraded to the three stage dryer from Sharp. I never used the shop so much in the summer until the last couple of years. So now I have 100% dry air.
I saw a Porchdog post for Hub back in o4or o5, but sometimes we forget how helpful old friends can be.
Hope I didn't offend anyone, I just want everybody to be safe, and work to the best of their ability. And I have enjoyed and learned a lot from both you guys.

We are OK.... I wouldn't say I have 100% dry air,, But it isn't really to bad being as hot as it is here.... I just finished shooting the frame for the train I'm doing... IT'S HOT !!!!

It make make a big difference that my new compressor isn't a year old yet.... I don't think it is anyway..

And I do know what you and oldred was trying to prove here.... ''Safety''
08-31-2011 12:55 PM
Chevymon My opologies, sounds like everybody has dry air. I noticed a little moisture in my lines a couple weeks ago, so I upgraded to the three stage dryer from Sharp. I never used the shop so much in the summer until the last couple of years. So now I have 100% dry air.
I saw a Porchdog post for Hub back in o4or o5, but sometimes we forget how helpful old friends can be.
Hope I didn't offend anyone, I just want everybody to be safe, and work to the best of their ability. And I have enjoyed and learned a lot from both you guys.
08-31-2011 12:41 PM
shine my blasting rig is completely separate. it is a diesel powered compressor . has 2 moisture traps.
the reason for moving the compressor is because i am tired of hearing it. by moving it up the hill i can plumb underground to the shop using the earth temp to cool the air before it enters the shop. this will be pvc . my booth is about 100 ft of air line from the compressor right now. have a good trap in the booth followed by a toilet paper filter. no water problems except for days where any air movement will create moisture period. if the shop floor is wet from the air forget it. do something else.


i've know hub aka dr.gun for a long time .
08-31-2011 12:30 PM
NEW INTERIORS
Quote:
Originally Posted by MARTINSR
Actually the first water trap (or outlet) should be at 25' from compressor. At that point the air should be cooled off enough for the water droplets to be large enough for the water trap to trap it.

Brian
Well Mine leave's the tank... The line from the tank run about 10' on about a 45* angle with one trap at the bottom of this 45* angle....It then run's through out my shop....(about 60') With a drop down with a trap there.. And my outlet is above that point..... I really only get a little water at the first point. And I mean a little at the first 45* trap.... The other trap that I hook my air line before the trap, Doesn't ever have water there... I have a Belair elite air compressor,7.5 hp with the auto air bleeder built in it.. I really don't have any problems with water... Not much at all anyway... But did look into the new lines I posted.... Only because of safety reasons... (Not for me) Because my Son use's it... And he's not as safe as I am...

It stay's very hot down south, 100+ here all the time..

Chevymon...I'm not convinced at all.. This would fall under starting something...Don't start !!!!
08-31-2011 12:21 PM
oldred Shine probably knows more about media blasting than anyone here and is a pro using pro quality equipment I am sure. Like I said I don't know how his air supply is set-up but likely it is one the largest (if not the largest) systems that any of us here have and I am certain it works properly, I never intended to question that.
08-31-2011 12:02 PM
Chevymon Sorry if I misread your comment intent. I saw a post from shine on another forum, and he was talking about running pipe underground soon, so I think that means he is having trouble. And with the blasting that he does, it could be very aggravating.
He shares so much, it would be nice for him to recieve once in awhile, nobody knows it all. But if he is reading the comments from Hub, it should put him in the right direction.
08-31-2011 11:54 AM
oldred
Quote:
Originally Posted by Chevymon
Be nice Red, they are convinced, and I think they could use a little help. Shine is off line now.


Not sure what you mean but I was not being sarcastic, I have known Shine for a while and he really is a professional who could not put up with a moisture problem. I am certain he does not have one but I don't know how his system is set up so I am curious how he accomplishes this.
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