Not correctly add flow in pipes

[arqyt]

Hey, I have spent enough time to adapt
Revit MEP to our regulations, and I find myself in a dead-end.
See if you can help.
When incorporating a pipe fitting, a problem arises, revit does not calculate the flow rates correctly. As you can see in the images does not adequately add up the flow rates. In fact, in one section it seems as if the pipe is doubled.

https://youtu.be/UYV2HtJlOjM

I would appreciate any guidance.
Thank you

[arqyt]

I think I have to clarify the question.
The problem arises when I attach a pipe fitting, where I parameterize a value for the output connector with value "Flow factor".
This value in an isolated section / system works correctly, but when up / down there are new flow inputs, it becomes "crazy".

[panaitescu.sinziana]

Thank you for your post,

My name is Sinziana Panaitescu from the Autodesk Technical Support Team. 

Could you send us the file you created, to take a look at it and run a few tests?

Best Regards,

Sinziana

[arqyt]

Attached is a more simplified case, which I also posted as another query in the forum.

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

Thanks and Merry Christmas

[panaitescu.sinziana]

Dear Jose,

Thank you for your patience, 

I have received your file and I see what you mean. The flow value is not multiplying correctly after the accessory.

Now, I have documented this inaccuracy and forwarded it to our engineers. They will look into it and provide me with feedback. Once I will have an answer from them, I will update this Forum thread and we can discuss this further.

In the meantime, please let me know if you have any other questions.

Regards, 

Sinziana