Re: 1/4" copper tubing?

["Tesla list" <tesla@xxxxxxxxxx>]

Original poster: FIFTYGUY@xxxxxxx 

In a message dated 3/28/07 10:05:21 P.M. Eastern Standard Time, 
tesla@xxxxxxxxxx writes:

>Type "K", "L" and "M" copper tubing is designated like standard pipe is; by
>the inside diameter.

    If by "standard" pipe, you mean iron, brass, and PVC pipe, then 
standard pipe is measured by the *outside* diameter, not the inside diameter.
    Yes, this means the flow characteristics change as the wall 
thickness ("schedule") changes. But these kinds of pipes are usually 
threaded (or in the case of PVC, more likely fitted with standard 
slip-on fittings) and the standardization of the outside diameter 
simplifies the threading of the pipe and inventory of pre-made fittings.


-Phil LaBudde




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