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On Nov 6, 12:08 pm, "Ralph Mowery" wrote:

You do realize that pipe is not really measured like it is called ?

It is measured exactly as it's called, by INSIDE diameter.

Not EXACTLY.. It depends on the thickness of the pipe. Schedule 40 pipe
is 1.049 inches inside, and sched 80 is .957 inches inside.

Pipe is the same outside diameter so it will all thread together for the
same size. Some pipe has thicker walls than others so the only way to go is
to make the inside diameter smaller.

Again look at the chart.

http://www.pipemarkers.com/pipe-data.php