Pipe tag DN change INCH

[Anonymous]

Hi all,

İ use DN 80 (Ø80 mm ) pipe but i want to tag it in inch. That show 3 1/4". It must show 3". how can i solve this problem.

And same problem DN200 7 3/4";DN250 9 3/4" etc.

[robert.klempau]

Hello @Anonymous,

When you change the units for Pipe size in your project to Fractional inches Revit will convert the nominal Pipe Size of the Pipe segments as you can see below.

In Revit OODB it is not possible to use the metric standard when modeling and tag it in Inches.

The solution is to use a Dynamo script that reads the Metric Pipe Size and adds an inch value to a project Pipe parameter that you can tag.

1. The Dynamo script has to read all the Pipes in the project
2. Read the Pipe Segment name and Size and look that one up in an Excel file.
3. Then read the inch value and place that value in the project Pipe parameter. For instance 'Pipe_Size_inch'.
4. Then you can create a tag with two types. One that will display the PipeSize value and one that displays the value of the 'Pipe_Size_inch' project parameter.

I will make a Dynamo script that does that for you.

[Anonymous]

@robert.klempau thank you for yor reply and yor hard work for dynamo.

[robert.klempau]

Hello @Anonymous,

Eventually I did not create the Dynamo script.

I found a way in Revit to do this.

What I did was creating a new Pipe Tag that is going to display the Inside Diameter (1) of the Pipe.

In the Edit Lable dialog box I selected the parameter and changed the units. (2)

I set them to Fractional inches (3) and set the rounding to nearest 1/4". (4)

Below you see the result.

You can download the Tag family below.

[mark_gerritsen]

Is there a way to hide either the metric or imperial size label based on the pipe size? I.e. I'd like any pipe under 50mm diameter to be displayed as imperial, and pipes starting at 50mm in metric.

Ideally, I'd like this only to work for specific pipe types, maybe based on a shared parameter yes/no? 

[arthur.crepuscoli]

Hey there! I've been pondering the most efficient way to work with both inches and millimeters simultaneously. As a solution, I've devised two tags: one dedicated to inches and another to millimeters.

For the inches tag, I've incorporated a calculated parameter.

if(Diâmetro = 20 mm, "1/2''", if(Diâmetro = 25 mm, "3/4''", if(Diâmetro = 32 mm, "1''", if(Diâmetro = 40 mm, "1.1/4''", if(Diâmetro = 50 mm, "1.1/2''", if(Diâmetro = 65 mm, "2''", if(Diâmetro = 75 mm, "2.1/2''", if(Diâmetro = 80 mm, "3''", if(Diâmetro = 100 mm, "4''", if(Diâmetro = 125 mm, "5''", if(Diâmetro = 150 mm, "6''", if(Diâmetro = 200 mm, "8''", if(Diâmetro = 250 mm, "10''", "VERIFICAR")))))))))))))

[jeroen.groothedde]

if(Diameter = 20 mm, "1/2''", if(Diameter = 25 mm, "3/4''", if(Diameter = 32 mm, "1''", if(Diameter = 40 mm, "1.1/4''", if(Diameter = 50 mm, "1.1/2''", if(Diameter = 65 mm, "2''", if(Diameter = 75 mm, "2.1/2''", if(Diameter = 80 mm, "3''", if(Diameter = 100 mm, "4''", if(Diameter = 125 mm, "5''", if(Diameter = 150 mm, "6''", if(Diameter = 200 mm, "8''", if(Diameter = 250 mm, "10''", "VERIFICAR")))))))))))))

[gabrielaARLN4]

This is a great solution! But, to make it better, I added the internal diameter parameter because the external diameter parameter was sometimes going wrong.

[fabiosato]

Hello,

One suggestion, you can add this information in the lookup tables instead of using formulas.

[marcia_brake]

@fabiosato I've seen you suggest a look up table in a couple pipe tagging posts. The look up tables I could locate are all for fittings. If it is just pipe diameter I'm trying to tag do I create a new look up table?

I have process piping that I want tag with the DN metric number - it seems best to have my pipe sizing set to mm. But then I have a few supply pipes like water that is coming in imperial sizes so I want to tag those as 2" or 4" I'm having some rounding issues so I would like a look up table that I can use to report the correct number. 

[fabiosato]

Hello,

For pipes, I create a project parameter using the same shared parameter and use Dynamo to fill it.