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View Full Version : do 2 x 25mm pipes flow the same as 1 x 50mm?















ubeaut
15th April 2009, 01:00 AM
im after some mathemetician who can tell me if 2 x 25mm pipes flow the same as 1 x 50mm?
i want to run air through the pipes that needs to flow at about 5l/s and i know 50mm pipe does this with my exhaust fan but will 2 x 25mm pipes do the same thing or not? or do i need 4 of them 25mm pipes?


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