Sengna Posted September 9, 2014 Share Posted September 9, 2014 I've got two 1.5" steel pipe one run horizontal and i one run vertical and i would like to connect them with 90 degree steel elbow, my question is that what is the right size of elbow to use in the real world and to draw on CAD? when i drew those two pipes, i drew them 1.5" Dia not the nominal size (1.900" O.D). Appreciate any suggestion. Thanks Quote Link to comment Share on other sites More sharing options...
ReMark Posted September 9, 2014 Share Posted September 9, 2014 You use either a short or long radius elbow to connect the two pipes. Depends on what the application is. Quote Link to comment Share on other sites More sharing options...
Sengna Posted September 9, 2014 Author Share Posted September 9, 2014 You use either a short or long radius elbow to connect the two pipes. Depends on what the application is. I want to try with short raduis 90 degree elbow. can i use 1.5" elbow? Quote Link to comment Share on other sites More sharing options...
mdbdesign Posted September 9, 2014 Share Posted September 9, 2014 I will suggest to draw real size of pipes to avoid problem in future. Look at any pipe fitting supplier catalog and decide what kind of connection you prefer. It will differ for threaded connection, butt weld or socket weld (assume you are talking about steel) Short or long radius elbow decide about flow of fluid. Quote Link to comment Share on other sites More sharing options...
Sengna Posted September 9, 2014 Author Share Posted September 9, 2014 I will suggest to draw real size of pipes to avoid problem in future.Look at any pipe fitting supplier catalog and decide what kind of connection you prefer. It will differ for threaded connection, butt weld or socket weld (assume you are talking about steel) Short or long radius elbow decide about flow of fluid. so 1.5" steel pipe elbow i should draw in true O.D that would be 1.900" then. one question, for 1.5" steel pipe use 1.5" elbow, 2" pipe use 2" elowbow........is that correct? Quote Link to comment Share on other sites More sharing options...
mdbdesign Posted September 9, 2014 Share Posted September 9, 2014 Yes and yes. See for fitting: http://www.cctf.com/catalogues for pipes: http://www.engineersedge.com/pipe_schedules.htm Quote Link to comment Share on other sites More sharing options...
Sengna Posted September 9, 2014 Author Share Posted September 9, 2014 Awesome tool, it gives all the info about the size and Wall thickness , thank you mdbdesign and Remark for your help. Quote Link to comment Share on other sites More sharing options...
rkent Posted September 9, 2014 Share Posted September 9, 2014 I've got two 1.5" steel pipe one run horizontal and i one run vertical and i would like to connect them with 90 degree steel elbow, my question is that what is the right size of elbow to use in the real world and to draw on CAD? when i drew those two pipes, i drew them 1.5" Dia not the nominal size (1.900" O.D). Appreciate any suggestion. Thanks The nominal pipe size is 1.5", the actual OD is 1.9. If you are drawing the pipes line by line then use nominal pipe sizes. If you have a program that draws them for you then it will draw the OD for you automatically. Most place will show 2" and smaller as single line pipe, some use 4" and smaller. A short radius elbow center line radius will be the nominal pipe diameter X 1, a long radius elbow will be 1.5 X nom. pipe dia. Quote Link to comment Share on other sites More sharing options...
Sengna Posted September 10, 2014 Author Share Posted September 10, 2014 . If you have a program that draws them for you then it will draw the OD for you automatically. . What kind of program that does that? i only have 2014 Autocad Mechanical. Quote Link to comment Share on other sites More sharing options...
rkent Posted September 10, 2014 Share Posted September 10, 2014 There are various programs out there for piping including Autodesk MEP, but Mechanical is not going to be one of them. Quote Link to comment Share on other sites More sharing options...
Sengna Posted September 11, 2014 Author Share Posted September 11, 2014 oh man!! I miss out cool stuff, is it autodesk product? Quote Link to comment Share on other sites More sharing options...
Sengna Posted September 11, 2014 Author Share Posted September 11, 2014 (edited) Did i draw this correctly? I want to show 90 degree elbow going down and one elbow below connect to 1.5" pipe that will run to the right? Please ignore the pink center line, i am still figure out the correct radius. Edited September 11, 2014 by Sengna Quote Link to comment Share on other sites More sharing options...
ReMark Posted September 11, 2014 Share Posted September 11, 2014 (edited) Stop. First, what type of elbow are you drawing? Is it a welded fitting, threaded or socket? And second, is this a short radius or long radius elbow? There are dimensional differences. One other question, are all your drawings going to be done in 2D? Re: image above. We normally do not show the dashed lines for the portion of the bottom elbow that would be obscured. I don't know if others do. Edited September 11, 2014 by ReMark Quote Link to comment Share on other sites More sharing options...
Sengna Posted September 11, 2014 Author Share Posted September 11, 2014 (edited) Stop. First, what type of elbow are you drawing? Is it a welded fitting, threaded or socket? And second, is this a short radius or long radius elbow? There are dimensional differences. One other question, are all your drawings going to be done in 2D? Re: image above. We normally do not show the dashed lines for the portion of the bottom elbow that would be obscured. I don't know if others do. -This are threaded fitting -They are short radius 1.5 "elbows (A= 1.5") -Yes, this will be in 2D, i imagine 3D would be fun but i am not there yet. Might be fun to try this in inventor. Note: I kind of concern about showing to many lines on the bottom, It gets complicated. Side Note: you guys know any site the offering free 2D pipe fitting and elbows autocad block for download? Edited September 11, 2014 by Sengna CLEARITY Quote Link to comment Share on other sites More sharing options...
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