How many gallons of water per minute can go through a 4inch pipe 10 yards long with 70 PSI?

The following is derived from Darcy's formula and adjusted for most practical purposes

q = (185.53 x p x d^5) / L)^0.5

q = flow in gpm

p = pressure psi

d = pipe diameter inches

L = length (feet)

your answer should be 333 gpm. This is taken for steel pipe, for Cu pipe it could be 4 times more, although it is not recommended to go that high for your flow will be too turbulent. noisy or too much vibration

Can this Darcy Formula be used for piplelines of 600 miles? William Shatner has proposed building a pipeline from say the Seattle, Washington area and even the Columbia River area a few hundred miles or so south of there around Portland, Orygun, to say the Shasta Dam from whence existing distribution/delivery structures/canals/rivers already exist. Could this Shatner proposal deliver enough water at say 50 psi in a 4ft diameter tube/pipe running that ~600 miles?

no longer adequate information dude. yet... curiously if the pipe is going vertically (promptly up) off of the 20 PSI pump it wont pump something and your circulate would be 0. occasion; a million PSI of water = a column of water 27.7" intense. 50 ft of pipe = six hundred" six hundred" divided by employing 27.7" = 21.66 pounds. SOoo. The pump might might desire to supply over 21.6 pounds to pump something. it would in basic terms cavitate till it burned up... hence the respond may well be 0,