The flow of argon

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I have a math question: if I take a 64 cubic foot chamber down to 100 torr, flip a valve that connects it to another chamber pressureized to 1psi filled with argon and through the .25" valve assembly it takes roughly 10 minutes to equalize. How long would it take to equalize with a 1" assembly?Common sense in an uncommon degree is what the world calls wisdom.
Reply:Sooo... I don't really know the proper way to figure this out. But... the valve sizes you give would be pipe diameter, I believe. So a .25" valve would be 1/16 as much area as 1". I'm not sure that gas movement at differential pressure is a linear process, so I'm not sure that if would take 10m x 1/16, or around 38s.Keith
Reply:I got the 38 seconds, but I was wondering if there was a variable that I was missing with the argon/vacuum/pressure.Common sense in an uncommon degree is what the world calls wisdom.
Reply:Originally Posted by BrainfarthI got the 38 seconds, but I was wondering if there was a variable that I was missing with the argon/vacuum/pressure.
Reply:Originally Posted by BrainfarthI have a math question: if I take a 64 cubic foot chamber down to 100 torr, flip a valve that connects it to another chamber pressureized to 1psi filled with argon and through the .25" valve assembly it takes roughly 10 minutes to equalize. How long would it take to equalize with a 1" assembly?
Reply:Just to be clear: I'm almost sure this isn't a linear situation, and that it would be LESS than 38 seconds. I assume this is for some kind of test/training. But again, I don't know the right way to handle this problem, if you need a real answer.