Hi Guys... 

Sorry probably I didn't explain very well yesterday.

Let me explain my situation better:

I want to size pipes automatically with the "Duct/Pipe Sizing" tool that is available in Revit.

Take those pictures as an example (this is inside a riser):

As you can see all the pipes for LTHWR are Ø50mm.

For LTHW we use Carbon Steel CS EN 10255 Heavy which is Threaded when the diameter of the pipe is between 8 and 50mm and Victaulic when the pipe is between 65 and 150mm.

Please see below our rooting preferences:

I'm able to change manually all the pipe fittings from Threaded to Victaulic:

But If I use the "Duct/pipe Sizing" Tool in Revit I have this issue:

As you can see, Revit doesn't put a 45 degree fitting but a 90 degree fitting and that means that my system will be catted.

Please see below a link for a simplified revit model where you can see the pipe type that I'm using.

https://wetransfer.com/downloads/73b0e2cb6a1b7f0701682c98e519268820170720133541/4121e6a32e75de4d3a82...

I don't understand what is the problem... can you give me a help please?

Thanks indeed guys. 

Hello @50418

Can you share the fittings here?

Thanks

Hi arjay.eco,

Please find attache pipe fittings.

Thanks for your help!

I've already used in our model the Elbow - Threaded for a lot of connections so If I have to modify the fittings is it possible to change only the Victaulic family? 

I just hope that there is a solution for it 😉

Hello @50418

I have observed that the root of the problems from the fitting you gave to me was the coupling.

The nested coupling family was not that flexible to adapt some of the sizes.

In this case I would suggest you to find another family for elbow that would adapt several pipe sizes and angles.

Hello @50418

Please disregard my reply above.

The fittings was working perfectly. I thought the fittings was not that flexible until the series of test. It just the Revit won't allow the automatic adaptation of fittings.

As a workaround when you are changing pipe sizes which also change the family for fittings, you have to select first all the fittings that will affected by the changes then manually change the family fittings. Once this done you can now select the system run you want to change and change the pipe size.

Hi Arjay,

thanks for your email.

So you don't think that I can size pipes automatically if I have two different kind of fittings (Threaded when the diameter of the pipe is between 8 and 50mm and Victaulic when the pipe is between 65 and 300mm) ?

At the moment I can't and I thought the problem was the families:

What I've found is that If I only use Threaded fittings then I can size pipes without problems:

And the same is if I ONLY use Victaulic fittings:

So my question is:

Why I can size pipes automatically if I ONLY have Threaded fittings or if I ONLY have Victaulic Fittings but not when I have both Victaulic and Threaded fittings together ( (Threaded when the diameter of the pipe is between 8 and 50mm and Victaulic when the pipe is between 65 and 300mm).

This is what I don't understand... 
Thanks for your help guys!!!! 🙂

Hello @50418

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@50418 wrote:

 

So you don't think that I can size pipes automatically if I have two different kind of fittings (Threaded when the diameter of the pipe is between 8 and 50mm and Victaulic when the pipe is between 65 and 300mm) ?

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Yep, exactly. The problem only happened when you set several fittings in the routing references for elbow and such. The Revit should fix this.

Meanwhile  there is no problem when the routing references set only one in each fittings.

I think you should consider my workaround during pipe sizing to avoid such problem.

Hi Arjay,

I understand... I think you are right. that is the only option or maybe I can do something with Dynamo.

Thanks for your help