Tankman Posted January 18, 2012 Posted January 18, 2012 (edited) Pipe and tank plant layouts, now need to make a modified (not standard) pipe fitting. Looking for a pipe plug drawing. the fitting (Imperial) is 4—10. Four inch NPT piping. Appears to have a slight taper, very slight. Or, better yet, a G 3-3/4" pipe thread(?). Anyone have a *.dwg (AutoCAD 2007) drawing you might like to post? Wo-wo-work, ugh. Edited January 20, 2012 by Tankman Quote
Dadgad Posted January 18, 2012 Posted January 18, 2012 As a representation can't you just scale it from an Imperial one? For sure somebody will have it, jusk asking. Quote
Tankman Posted January 20, 2012 Author Posted January 20, 2012 Dadgad, thanks for the reply. For representation, I did scale pipe threads (drawing looks great). I was hoping for actual thread drawings thinking the points could be extracted and used for CNC milling/cutting of both the male and female threads. Any ideas? Quote
Dadgad Posted January 20, 2012 Posted January 20, 2012 Sorry Tankman, just theorizing. Having never worked with CNC, and being a total tool junkie though, that sounds like a lot of fun. Where did everybody go? Did I clear the room? I figured you would have plenty of folks offering you exactly what you needed. You don't have it modeled, right? If I am not mistaken, isn't it possible to just supply a 3Dmodel, and the mill takes it from there? Just curious. Quote
SLW210 Posted January 20, 2012 Posted January 20, 2012 Not much threaded available in that size. You may have to draw it up. Do you have the specs for that size? Quote
Jack_O'neill Posted January 20, 2012 Posted January 20, 2012 Couldn't find a model, but here's a chart with some specs if that will do you any good. Pipe threads are crazy any way, add metric sizes and it goes off the deep end. http://www.engineersedge.com/hardware/DIN-ISO-228.htm Quote
Tankman Posted January 22, 2012 Author Posted January 22, 2012 Forget which forum member recommended McMaster Carr but, did pickup something close. I do have the pipe thread spec's. Drawing was adjusted accordingly and, Friday ran a piece of steel in the CNC lathe. Results were better than expected. Some kind of "wierd" engineering project/design. Aren't they all? Quote
SLW210 Posted January 23, 2012 Posted January 23, 2012 I thought I looked on McMaster Carr and didn't see the correct size, but I might have looked before you edited your post. What size did you find to use? Glad you have that sorted. I am glad we use welded connections and weld flanges for the most part here. Quote
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