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Help - Flow of Dry Nitrogen through orifice

Help - Flow of Dry Nitrogen through orifice

Help - Flow of Dry Nitrogen through orifice

(OP)
Folks - I am searching for a simple table or calculation to find the cfm of dry nitrogen through an small orifice (.25"). Can anyone point me in a direction of post a formula? Thanks!

RE: Help - Flow of Dry Nitrogen through orifice

http://www.theleeco.com/EFSWEB2.NSF/Engr!OpenView

Is a good source from the Lee Company engineering site at:

Select: 196     Lohms versus orifice size
which will bring you to:

http://www.theleeco.com/EFSWEB2.NSF/1c6397740f8b45e1852563b9006d6bc6/914e25a54307a1ef852565d10076410c!OpenDocument

From here calculate the Lohms of 0.25" orifice.

Return to the first link and select: 208     Lohm Calculator for Gasses
which brings you to:
 
http://www.theleeco.com/EFSWEB2.NSF/airlohms.htm!OpenPage

From here calculate the nitrogen flow rate using the Lohms calculated from the previous link.
 

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