What size mech tube to sleeve inside 3/4" pipe?

Asked by bpeoples (2551

) October 23rd, 2008

I’m wondering if anyone has actual hard experience with this fit problem:
I’m designing a thing with 3/4” pipe (0.824” ID), that I need to sleeve mechanical tube inside.

My options for OD on the mech tube are 0.75 (0.037” clear around) and 0.8125” OD (0.0115” clear around).

Needs to be a tight fit, but would be nice if the flash inside didn’t catch on the pipe.

Any thoughts? Anyone have some of this kicking around? =)

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3 Answers

I’d go with the 0.8125”. I have a piece of schedule 40 3/4” pipe here, and my calipers are showing even directly on the seam you’d still have clearance.

0.037” is a lot of slop.

Harp (19179

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Follow-up question: What kind of lengths are we talking about? It’s just that the longer you go, the more the straightness of the the pipe and tubing become an issue.

Harp (19179

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Good question! It’s only sleeving in 6”, so I’m not too concerned.

bpeoples (2551

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