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Old 02-25-2013, 11:15 AM
qwerty qwerty is offline
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Join Date: Aug 2007
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Quote:
Originally Posted by mikeyfev1 View Post
If we assume an atmospheric pressure of 14.7 psi and we apply a 20 psi vacuum to the unlock side of the unit, there there will be about 34.7 psi of pressure forcing the diaphragm to the unlock side on the unit.
You cannot have 20 psi of vacuum in a 14.7 psi atmosphere. Maybe you are thinking of 20 in Hg vacuum, which is approx 9.8 psi (differential.)


Quote:
Originally Posted by Fattyman View Post
yes but the pressure differential would be 5.3 psi, not 34.7.
You might want to put a little more thought into that concept.

Last edited by qwerty; 02-25-2013 at 11:27 AM.
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