not per ft,per square inch.Pounds of water in a pipe calculation is pipe length in feet x pipe diameter squared x 0.34..sort of like killing a well by weighting up mud you simply add chemicals and solids to water (or oil) to raise wieght of column of fluid above formation to hold the pressure( you cant add more water than your well will hold ,so you have to make it heavier) .if you raise the pressure higher than your pump can out put it wont flow,same exact deal. or you can think of it this way,theres alot more square inches inside a 6 inch pipe than there is a 1/4 inch pipe.
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Today's Featured Article - Tractor Hydraulics - The Basics - by Curtis Von Fange. Hydraulics was one of the greatest inventions for helping man compound the work he can do. It’s amazing how a little floor jack can lift tons and tons of weight with just the flick of a handle. What’s even more amazing is that all the principals of hydraulic theory can be wrapped up in such a small package. This same package applies to any hydraulic system from the largest bulldozer to the oldest and smallest tractor. This short series will take a look at the basic layout of a simple hydraul
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