Conversion from Fixture unit to L/s

[IslamSakr]

I want to do edits in flow conversion method in Revit, Revit is using IPC 2012 tables in the conversions from Fixture unit to L/s. In flush tank systems there is no problem, the problem exists in flush valve system.

Revit converts any value below 5 FU in flush valve system to 0.95 L/s even if this value is equal to 1 and this value "0.95 L/s" for 1 FU is very very high.

I want a plugin to do a conversion for flush valve values less than 5 FU in flush valve systems to be similar to the conversion in flush tank system.

Can anyone help me in this issue?

Thanks in advance.

[Anonymous]

IPC 2012 doesn't provide values for flush valve systems with fixture units less than 5 because 5 is the lowest fixture unit count you can have in a flush valve system (1/4" urinal flush valve). In your example, a 1 fixture unit flush valve system doesn't exist as defined by IPC 2012.

If you want a plugin to convert fixture units for flush valve systems with less than 5 FU you're going to have to come up with your own table, and then I believe it's pretty trivial to multiply the FU by your table value.

[IslamSakr]

When i have lavatory connected with flush valve system, the lavatory has 1 FU, how can i calculate the flow of this lavatory if one lavatory with 1 FU give me flow of 0.95 L/s in Revit conversion,, this is unreal ,, i want to make a plugin to just convert FU less than 5 to L/s equal to L/s used in flush tank table, this will result in logic flow for 1 Lav. till 5 Lavs.

[IslamSakr]

Any body can help !

[jeremytammik]

Dear Islam,

Sorry nobody answered yet.

Maybe nobody knows.

I'll pass it on to the development team and see whether they can suggest anything.

On second thoughts, re-reading this thread, I do not see anything here that I can ask the development team.

Matt seems to know what he is talking about in his suggestions above.

Just as he says, the conversion itself is probably a trivial multiplication, and if you need values outside the range of existing tables, you will have to create your own.

I hope this helps.

Cheers,

Jeremy

[IslamSakr]

Thank you Jeremy, yes i want to create my own but i can't, can you help?

[jeremytammik]

No, sorry, I don't know how and have many other things to do. Sorry.

[IslamSakr]

I found another one facing the same problem here.

https://forums.autodesk.com/t5/revit-mep-forum/pipe-annalysis-revit-pipe-sizing-flow-gpm/td-p/694474...

[Anonymous]

Jeremy,

You may want to get your keyboard checked out. It typed "No" when it should of typed, "I already did that here: https://forums.autodesk.com/t5/revit-api-forum/usermep-calculation-addin/td-p/4968174 "

Either that or it's a typo. Very common, the keys are right next to each other. 

😃

[jeremytammik]

Hi Matt,

Thank you very much for pointing that out!

I urgently need a full replacement of my memory chips, as well.

That is why I would like to focus more on Q4R4 than on answering cases:

http://thebuildingcoder.typepad.com/blog/2017/03/q4r4-revit-api-question-answering-system.html

Cheers,

Jeremy