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brass fitting sizes

Post questions and info about pneumatic (compressed gas) powered cannons here. This includes discussion about valves, pipe types, compressors, alternate gas setups, and anything else relevant.
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brass fitting sizes

Unread postAuthor: Major Collins » Thu Mar 31, 2011 8:23 am

what is the fitting size for a blowgun , the side the quick connect would go through ? is it 3/8s or 1/4s
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Unread postAuthor: jakethebeast » Thu Mar 31, 2011 8:43 am

i think its 1/4s
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Unread postAuthor: Crna Legija » Thu Mar 31, 2011 8:53 am

iv seen 1/8'' and 1/4''
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Unread postAuthor: Major Collins » Thu Mar 31, 2011 9:13 am

the male 1/4 thread is roughly the same size of the copper pipe that fits inside the 1/2 inch olive with a compression fitting right?

which is about 7mm or 8 mm right?
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Unread postAuthor: Crna Legija » Thu Mar 31, 2011 9:19 am

i just measured one with iphone app ruler its about 11mm
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Unread postAuthor: Major Collins » Thu Mar 31, 2011 9:24 am

yeah actually that sounds about right im staring at the olive hole right now ha
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Unread postAuthor: mark.f » Thu Mar 31, 2011 9:24 am

-_- wrote:i just measured one with iphone app ruler its about 11mm


*rhgktwqlrhtvgiqohf12t54b29r1hnfbowoekqlr* :D

So, paraphrased, you're asking:

"Take, for example, a blowgun on an air compressor. The side which normally is attached to a quick disconnect (auto plug) which you plug into the matching quick disconnect on the air hose, what are the size threads in the blowgun body here?"

In which case, they would be 1/4" NPT. Blowguns have a 1/4" FNPT size (female NPT) and a side which contains straight threads, but which 1/8" NPT male fittings will thread into fairly securely.
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