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Finding fluid flow rate based on supply pressure and pipe diameter?

I work for a consulting engineering firm, and I am trying to approximate the flow rate in a 2 steel pipe. The line branches off from a supply header with a pressure of 10 Psig (Gauge not atmospheric). The line discharge is to atmosphere (0 Psig). Total Equivalent length of the 2 inch pipe is approximately 110' (Total equivalent length is taking elbows and other fittings and converting them to equivalent pipe length and adding it to the actual length of pipe). Knowing this, how can I approximate the flow rate (GPM) through the pipe. I tried using bernouli's equation, but that assumes the fluid is non-viscous and gave an unrealistic number. Also we can assume change in height (static head) is negligible. Thanks


Windsor Locks Hartford County, Connecticut, United States. The population was 12,044, at the 2000 census.but a July 1, 2002 Census estimate put the town's population at 12,237. Situated on the Connecticut River, the town is named after a set of canal locks. These were opened in 1829 and formed part of the Enfield Falls Canal that circumvented nearby shallows on the river. Windsor Locks is the site of Bradley International Airport, and one-third of the town's area consists of the airport.
You answered your own question. The bladder is leaking and letting the air out and filling with water. It needs to be replaced.

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