tap sizes, compression fittings |
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tap sizes, compression fittings |
Randal |
Dec 27 2008, 07:37 PM
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#1
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Advanced Member Group: Members Posts: 4,446 Joined: 29-May 03 From: Los Altos, CA Member No.: 750 |
This is somewhat racing related (IMG:style_emoticons/default/smash.gif) I bought a new air pump for my old compressor but have to build a new manifold and re-plumb my air connections. Need some help. I'm using two lines, one is 1/2 steel and the other 1/4 copper. I'm using compression fittings on both. What tap size do I use on the 1/2" compression fitting to tap into my new manifold? On one side the compression fitting will be connected to the 1/2" pipe, the other side (minus the compression fitting) will be threaded into my new manifold. Both sides of the compression fitting are the same. Likewise for the 1/4" compression fitting, i.e., what tap size? Thanks. |
J P Stein |
Dec 27 2008, 08:22 PM
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#2
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Irrelevant old fart Group: Members Posts: 8,797 Joined: 30-December 02 From: Vancouver, WA Member No.: 45 Region Association: None |
Augghhh..... I hate this. I usually end up rumaging thru fittings at multiple FLAPS for a couple hours.
I think I understand what you are trying to do (I've been wrong before). Most compression fittings can be bought with a pipe tap on one end....an adaptor. So, all you would need is 1/4 & 1/2 pipe taps with appropiate drill sizes. See if you cans find the fittings FIRST. (IMG:style_emoticons/default/biggrin.gif) |
Randal |
Dec 27 2008, 09:46 PM
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#3
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Advanced Member Group: Members Posts: 4,446 Joined: 29-May 03 From: Los Altos, CA Member No.: 750 |
Augghhh..... I hate this. I usually end up rumaging thru fittings at multiple FLAPS for a couple hours. I think I understand what you are trying to do (I've been wrong before). Most compression fittings can be bought with a pipe tap on one end....an adaptor. So, all you would need is 1/4 & 1/2 pipe taps with appropiate drill sizes. See if you cans find the fittings FIRST. (IMG:style_emoticons/default/biggrin.gif) So is there some designation for pipe taps, like "AN?" Here are a few of the choices at McMaster Carr? Acme BSPP BSPT Metric NC NEF NF NPS NPSF NPT NPTF NS N/UN And how do I tell which one works for this particular compression fitting.... nothing on the package. (IMG:style_emoticons/default/confused24.gif) |
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