Air Compressors

[ebscreen]

Firestone makes a rubber air hose that's about $0.75 a foot or less for 1" diameter.
That's what I used at the old shop and it came with us to the new one. I don't know that
copper would do the same.

[ZooCity]

Get the compressor away from the press would be my vote.  Copper to the compressor is gonna cost more than air line of any variety I'd reckon and even the noise of a screw comp is annoying to work around.

The Rapid Air is really excellent.  You can bend it around anything.  Only downer is the fittings are obscenely expensive but I bet you could find some compression fittings for Pex-Al-Pex that would work with it, since that's all it is. 

[Prosperi-Tees]

Looks like I am going to cheap out and get some rubber air hose for now.

[ebscreen]

Make sure you get at least 3/4" ID, I think they even recommend 1" for presses like yours.

[Prosperi-Tees]

So the fitting coming out of the air compressor is 1/2". Do you just get 1/2" to 3/4" adapters out of the press and 34" to 1/2" reducer at the press, correct?

[ScreenFoo]

If you have 1/2" connections at each end, I doubt you NEED 3/4" hose, but you shouldn't have any problem getting the fittings you  need.  We have a 3/4" hose here with 1/2" fittings, that's how it came, and worked fine in a pinch with adapters for a 3/4" inlet press.

Is that a 6/8 you're getting?  Haven't seen anything smaller than a 3/4" NPT in on M&R stuff, but I haven't seen any of their smaller stuff either.

[ebscreen]

Is that a 6/8 you're getting?  Haven't seen anything smaller than a 3/4" NPT in on M&R stuff, but I haven't seen any of their smaller stuff either.

Cool, board ate my post.

It's my recollection of the same thing Foo, hence my recommendation.

It's my understanding that in terms of using 1/2" fittings on 3/4" pipe, that any restriction
equates to decreased throughput. As for actually needing full throughput I don't know.
Reservoirs come into play as well. I'm not an engineer, just play one on TV.

[ScreenFoo]

I need to get a gig playing engineer on TV, I bet it pays better than doing it in this armchair.   

My experience was that I couldn't get the 8/10 to slow down with eight air heads on full speed with the hose like the one EB described, (3/4 hose, 1/2 fittings) although if you have an air index that may be a little different deal.  I'd cinch it down though, I wouldn't wanna get whipped by a blown one emptying a 120 gal receiver...   

I looked into a little of the science behind this--a smaller fitting than hose makes sense in most applications.
The amount of CFM that will travel through an orifice or fitting of a certain size is far larger than how many CFM will travel through any sizable length of hose that same size.  And the large reservoir in the base comes into play as well, I'm sure.

[Prosperi-Tees]

Hmmm interesting. It is an 8/10 all air

[ebscreen]

I got whipped by a 6mm nylon hose the other day. Unruly hose is no joke.

[Binkspot]

If your just doing something to get set up get a 50' air hose (red type contractors use for jack hammers and such) with Chicago type ends and two Chicago x 1/2npt adapters, it should be less then $100 for everything you need. The 1/2" reducers should not affect the flow or delivery in your case.

You should have some sort of flex line between the compressor and chiller.

1/2" air pipe (black iron or copper) will deliver 18 cfm up to 75' @ 100 psi. 3/4" will deliver 30 cfm up to 100' Each fitting in a system is equal to 5' of pipe.

[Prosperi-Tees]

If your just doing something to get set up get a 50' air hose (red type contractors use for jack hammers and such) with Chicago type ends and two Chicago x 1/2npt adapters, it should be less then $100 for everything you need. The 1/2" reducers should not affect the flow or delivery in your case.

You should have some sort of flex line between the compressor and chiller.

1/2" air pipe (black iron or copper) will deliver 18 cfm up to 75' @ 100 psi. 3/4" will deliver 30 cfm up to 100' Each fitting in a system is equal to 5' of pipe.

That's just what I did. Setup for $75