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Pipe with a valve at the end The pressure at the valve is 40 PSI you open the valve fully to atmosphere - how do you calculate the flow rate?
Wiki User
∙ 14y ago
Use a 5 gallon bucket and determine the amount of time it takes to fill it. For Example, if it takes 5 minutes to fill up the bucket it is flowing at one gpm. Just take the time it takes to fill the bucket and divide by 5!
Wiki User
∙ 14y ago
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