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Barrel Material Couplings And Nestings

what nests into what?

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#1 nerfer34

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Posted 01 April 2007 - 08:59 AM

I am looking to compile a list of what nestsinto what and what couplers into what.

This can get confusing evn for some of the smartest people. So can we basicaly make an official guide that helps people with this stuff?

If you can contribute than please emphasize if it is a perfect fit(wil fit in perfectly without tape etc.) or if it is close to perfect(put a little bit of tape around )

Here are a list of some barrel material that I KNOW have a perfect fit
COUPLERS
1/2" CPVC Coupler acts as a coupler for 1/2" CPVC.
1/2" brass acts as a coupler for 17/32" brass
17/32" brass acts as a coupler for 9/16" brass
9/16 " brass acts as a coupler for 19/32" brass.
19/32" brass acts as a coupler for 9/16" brass.
17/32" brass acts as a coupler for 1/2" brass.
9/16" brass acts as a coupler for 17/32" brass
1/2" PVC coupler acts as a coupler for 1/2" PVC

NESTINGS
1/2" brass nests into 17/32" brass
17/32" nests into 9/16" brass.
9/16" brass nests into 19/32" brass.
17/32" brass can squeeze into OMC's PETG.

Thanks
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#2 CaptainSlug

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Posted 01 April 2007 - 10:09 AM

It should be painfully obvious what will fit into what by the measurements alone. Just convert your fractions (9/16 = 18/32 & 1/2 = 16/32) or figure out the decimal equivalents.
And pipe couplers fit the outer diameter of the same size of pipe.

Edited by CaptainSlug, 01 April 2007 - 10:10 AM.

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#3 Retiate

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Posted 01 April 2007 - 12:36 PM

With some dremeling, CPVC will fit into 1/2" sch. 40 PVC.
And I think 9/16" brass nests into 1/2" copper. I'm not sure how well, or if it works, but I think I've seen it done here before. Don't remember who did it.

Edit: I meant sch. 40 pvc...

Edited by Retiate, 01 April 2007 - 02:44 PM.

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#4 Prometheus

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Posted 01 April 2007 - 12:43 PM

With some e-tape, 9/16" brass fits into 1/2 sch40 PVC, and I think 19/32" will fit into it as well. Really, as CS said, brass sizes are pretty easy, and just getting PVC and coupler measures is idiotic proof. Other than that, it's trial and error.
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#5 monkey with a nf

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Posted 01 April 2007 - 02:09 PM

1 step apart brass sizes nest perfectly into each other (they are spaced by 1/32", and have a wall thickness of 1/64"), at least with K&S brass. However, with PVC, can anyone fit sucessive sizes within each other? The SCAR-N bolt, for example, is 1/2", but slides in 3/4" (I think). However, I can't get PVC/CPVC to nest, even using thinwall.

Also, 19/32" brass fits perfectly into 1/2" PVC.
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#6 nerfer34

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Posted 01 April 2007 - 02:12 PM

Oh, yea I listed the obvious ones.

But maybe we can find what PETG nests into etc.

Does anyone know what is a good coupler for OMC's PETG or 17/32" brass(besides 9/16" brass)?
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#7 Rambo

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Posted 01 April 2007 - 02:20 PM

I don't think using brass for coupler is that good of an idea. Just use 1/2 PVC coupler and stick 1/2 PVC into the coupler. OMC's PETG will fit into the 1/2 PVC with a little e-tape, as will 7/16 brass.

Edited by RAMBO, 01 April 2007 - 02:21 PM.

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#8 CaptainSlug

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Posted 01 April 2007 - 06:27 PM

But maybe we can find what PETG nests into etc.

Anything with roughly a .572" ID or slightly larger.
1/2" SCH40 PVC is kinda close with a .602" ID

If you want nominal dimension for anything you can simply poke through http://www.mcmaster.com and it will tell you want pipe sizes have what dimensions.

Edited by CaptainSlug, 01 April 2007 - 06:28 PM.

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#9 Flaming Hilt

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Posted 01 April 2007 - 07:48 PM

How about O-rings? Because it doesn't seem an obvious connection to me that Industrial no. 18 fits in 1" thinwall.
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#10 Prometheus

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Posted 01 April 2007 - 08:29 PM

Yeah, all y O-rings are imperial measure, giving me inner diameter and outer diameter. I haven't seen numbered (No.) O-rings at all (however, I'm in Canada).
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#11 CaptainSlug

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Posted 01 April 2007 - 11:03 PM

How about O-rings? Because it doesn't seem an obvious connection to me that Industrial no. 18 fits in 1" thinwall.

If you select any given size number of o-ring in the mcmaster catalog it will tell you what the dimensions are, then you can compare those to pipe dimensions.
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