Revit MEP Pipe Sizes - How to change to less than 1"D sizes?

[Anonymous]

I need to change pipe sizes to 1/2", 5/8", 3/4" or 7/8" diameter, but the program is not allowing it. 1" diameter is the smallest pipe you can change to in Properties. Does anyone know a way to do this?

[CoreyDaun]

1/2" and 3/4" sizes should be included by default, at least with RMEP 2012. Verify under Manage Tab » Mechanical Settings » Pipe Settings » Sizes. Ensure that the "Used in Size Lists" box is checked.

[Anonymous]

Thanks for the Reply. I did what you suggested but the problem persists. When I draw my Copper Pipes the results are the same. The pipes sizes start at 1" and will not allow me to select or enter a size lower than that. It also will not allow me to enter a fraction even when accompanied by a whole number. Is there another setting that I am missing?

[Anonymous · Accepted solution]

Check "project units" Manage>Project Units.Common>Length>Rounding>Pick a Nearest fraction of your choice. OK out of that and check if you have fraction pipe sizes.

[Anonymous]

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@Anonymous wrote:

1/2" and 3/4" sizes should be included by default, at least with RMEP 2012. Verify under Manage Tab » Mechanical Settings » Pipe Settings » Sizes. Ensure that the "Used in Size Lists" box is checked.

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In addition to this, there are a few other things to remember.

You notice the pipe has some parameters under Mechanical called Material, connection type and class.

MAKE SURE the new size you are adding to copper matches the same connection type and class.

[Anonymous]

THANKS!!! That solved the problem.

[Anonymous]

Thanks! For your imput. The information you provided will help in my setup & template.

[Anonymous]

Thanks for your input.

[Anonymous]

Your welcome

[Anonymous]

Thanks for your reply.

How do I check that "the new size you are adding to copper matches the same connection type and class."

Thanks in advance.

[Anonymous]

Changing the size of a pipe should not affect its classification. But if you are not sure, select the pipe in question and look in Property's for anything different in its classification. Thank You Peter M. Alexander, III Senior Drafter [Description: Description: IR_Strat-Hman_RGB(blu)] Hussmann - Chino 13770 Ramona Av Chino, CA 91710 (909) 548-2575 Direct Line (909) 590-4910 Ext. 2575 (909) 590-5113 Fax [email protected] Safety first and always - "Let's be careful out there!"

[Anonymous]

I found this thread because I was having a similar problem - I could only see whole number diameters- in my Project Units/Discipline/Common, the length had a fraction. So I then changed the Discipline to Piping and saw that pipe size rounding was set to 1". After I changed that to a fraction, I was then able to see all the pipe sizes.