crossthread
Titanium
- Joined
- Aug 5, 2004
- Location
- Richmond,VA,USA
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I have often been curious where the weird pipe dimensions come from. Half inch is never half inch etc. in the plumbing world. I found this chart thinking it might help someone other then me.
View attachment 261127
Amazing effort by someone
I'd LOVE to have this in a high-res scan! Could I talk you into that? I'll send it to drafting and have it plotted for my office.
The train of thought goes like this:
1. Specify a nominal size.
2. Add twice the wall thickness of the HEAVIEST schedule pipe made in that size.
3. That gives you the nominal OD for ALL schedules of pipe in that nominal size so the threads are compatible.
No, sorry. The HEAVIEST schedule is commonly going to be 160, or XXS, and that formula isn’t even close to correct for those. Look ‘em up.
What is so hard about looking up a schedule dimension or chart?
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