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  #16 (permalink)  
Old 04-21-2011, 05:59 AM
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Oh look at this alternative.... seems to solve my problem and is reasonably priced. Any how many gas hoses have a video?



http://www.youtube.com/watch?v=h81HW...layer_embedded

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Old 04-21-2011, 09:03 AM
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I had my local hose shop make me up a 3/4" ID rubber hose with some 1/2" or 3/4" npt fittings on the end.

I then used these 'unions' that allow them to spin, and they have a sealing edge on the inside.. I think they were $5 each or something..

http://img.tootoo.com/mytootoo/uploa...09ef7fef4d.jpg

Look like that.. Except mine are uglier cast iron ones.
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Old 04-21-2011, 02:33 PM
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Thanks for the flex line advise Johnnyk81. I'll look into it.

For the copper, here is an update. I finished all the soldering runs. My concrete bit decided to give up the ghost so I still have to anchor the piple at the outlet area and that final water trap, but I'm otherwise complete. I will have to solder in (or SharkBite) something at the compressor end but I'm still pondering what my flex line will be...

All in all its a good 35+ feet 3/4" copper. I can't say I want a career as a plumber after this project. I just hope there are no leaks!

here is the second half of the run:


I put in two stair stepped runs with water traps


For the filter I'm reducing to 1/2 and I purchased this SharkBite connector, so I can attach it to the filter and then simply slide the assembly on. Should work..
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Old 04-21-2011, 07:08 PM
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Quote:
Originally Posted by ToddMcF2002
Get ready for the worlds DUMBEST question! If this has fixed threads and goes into female fittings with fixed threads (meaning nothing spins....) how do you screw it on????

The only thing I can think of is I have to screw it onto the compressor ball valve first, then attach the pipe side fitting, then solder to the pipe. But that is a one way road...

Like I said its a stupid question!


http://www.tptools.com/pl/Images,85-...etal-Hose.html
here is what i did, i used a union (i think thats what its called, my mind has gone blank)
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Old 04-22-2011, 08:11 AM
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Yup, exact same things I used..
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Old 04-25-2011, 01:38 PM
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I see... so that union fitting is two parts? Did you use and pluming putty inside the nut for a seal or just crank it down? ... and thanks for the idea!
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Old 04-25-2011, 02:11 PM
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Quote:
Originally Posted by ToddMcF2002
I do have a big question on the end outlet. Most of the filters and regulators look like they are 3/8 inlets & outlets which seems to defeat the purpose of the 3/4 piping I'm using. Any recommendations? Also, do I need multiple outlets for different uses such as painting on one outlet and tools on another?

Thanks for any advice.
use a 1/2 or 3/4 filter/regulator or you will choke your system.
go to grainger.com look at the left margin you will see lots of regulators in 1/2 and 3/4. you can also narrow the search by cfm.

don't use the junk at home depot, they are all 1/4 or 3/8.

we have a 3/4 right after the compressor set at 80psi sometimes we crank it up to 100psi. we also have line regulators at the spray booth and a few work stations.

in my home shop i have a 1/2'' high volume regulator/filter at the compressor set at 80psi and then also a plug in regulator for when i need it. my upholstery stapler works best at 25 to 40 psi and my powder coat system requires 10-12 psi.
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Old 04-25-2011, 03:17 PM
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Quote:
Originally Posted by ToddMcF2002
I see... so that union fitting is two parts? Did you use and pluming putty inside the nut for a seal or just crank it down? ... and thanks for the idea!
Two parts, correct. You just crank it down, and it's soft, so it seals just fine.
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Old 04-25-2011, 04:29 PM
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Is there a plumber here ?

I don't think the yellow flex is rated for high enough pressure for compressed air. It seems like the plumbers only used 15 or 20 pounds when they pressureized the house ghas lines for the building permit inspection
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Old 04-25-2011, 06:45 PM
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Quote:
Originally Posted by ToddMcF2002
Most of the filters and regulators look like they are 3/8 inlets & outlets which seems to defeat the purpose of the 3/4 piping I'm using.
The 3/4'' pipe will allow the water to slow down and drop out of the air stream better than a smaller diameter pipe. More volume is better. ya done good.
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Old 04-25-2011, 06:47 PM
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Quote:
Originally Posted by timothale
I don't think the yellow flex is rated for high enough pressure for compressed air. It seems like the plumbers only used 15 or 20 pounds when they pressureized the house ghas lines for the building permit inspection
Yeah I'm not going to chance it. I'll just get the TP Tools one.

So folks... The whole regulator / filter selections are annoying me. Too many choices! Should I go with a Sharpe 606A or one of the SpeedAire or Wilkerson from Grainger? Are they all equivalent?

Should I cut off that 1/2" pipe I soldered in for an outlet and go with 3/4" or does it matter? Am I over thinking this???

EDIT:
I'm going to use a very obscure quote from a semi obscure film "Excalibur" when Arthur is trying to pry an answer out of Merlin, who never answers questions directly. Sometimes when questions get asked here and the experts dodge a strait recommendation it pops into my head....

So in regards to the filters :
No poetry. Just a straight answer. Which is it?!?

Last edited by ToddMcF2002; 04-25-2011 at 06:57 PM.
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Old 04-25-2011, 07:50 PM
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OK I'm gonna hit add to cart on the Sharpe if someone doesn't stop me soon. I have no better reason than I like the color better than the others! yes? no? maybe?


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  #28 (permalink)  
Old 04-26-2011, 01:04 PM
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1/4'' outlet?
that is a point of use not a system filter

http://www.grainger.com/Grainger/SPE...K91?Pid=search

http://www.grainger.com/Grainger/SPE...K99?Pid=search
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Old 04-26-2011, 01:57 PM
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If I'm understanding what you are saying... the Speedaire filter/regulator is intended to have more hard piping on the outlet side so a separate lubricator can be on the hardpipe and/or multiple outlets etc. The "point of use" implies the air hose itself is attached to the system on the 1/4" outlet? Do the Speedaire units have outlets the same size as its inlets?
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Old 04-26-2011, 05:24 PM
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use a union.

dave
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