Thread: NPT vs. ID
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Unread 01-08-2003, 11:20 PM   #18
pippin88
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Join Date: Oct 2002
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Quote:
Originally posted by m3_arun
what exactly IS the internal diameter? in that case?
thanks.
Approx 7.5mm to 8mm.

The inside of the barb does not narrow or get bigger at either end, it is a constant size.

I was sure that the 1/4" referred to the thread size, not the inside of the barb. You could get barbs with big variance in wall thickness, therefore 1/4" cant really apply to the inside of the barb, only the constant size of the thread.
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