Flow factor parameter connector

[arqyt]

Hi, Actually my doubts are about the use of the flow factor in family connectors.
I understand that the flow factor is used to reduce / extend the flow of a connector according to a parameter. And for that I want to use it, but I do not get it as you see in the video.

http://autode.sk/2gIZ3NH

The flow effectively multiplies correctly but ... its direction goes crazy. I do not understand if it could be due to an error or misuse on my part.
I have created a pipe fitting that serves to parameterize a loss of flow. It is simple.

Can anybody help me?
Thank you

[Rafal.Gaweda]

Dear Jose

Could you be so kind and post also this example Revit file?

Thank You for cooperation.

[arqyt]

Of course, and grateful.
Here is the file rvt, note that a single section the system inspector gives different values of flow along the section.

http://autode.sk/2hucdKP

[Rafal.Gaweda]

Dear Jose

Thanks for the files.

Indeed, something is not correctly calculated. 

It is needed to be fixed by Revit dvlp team.

Thank you for your cooperation and I apologize for this inconvenience.

[arqyt]

Rafal, thanks for your help.
I have not found any explanation, do you know if the flow factor parameter is a coefficient that multiplies the flow in the pipeline?
I intuit this way but I am not absolutely sure.
Thanks again and Merry Christmas