What is ft/100ft and how does it relate to calculating head loss in pipes?

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SUMMARY

The discussion clarifies the unit ft/100ft used in calculating head loss in pipes, emphasizing that it represents head loss per 100 feet of pipe rather than pressure drop. This unit is valid for determining the height of storage tanks for gravity feed systems. To convert head loss from ft/100ft to Pascals (Pa), one must multiply by 1000 (kg/m³), 9.8 (m/s²), and 0.30 (m/ft). The confusion arises from the expectation of pressure units like Pa or psi, but ft/100ft is appropriate for head loss calculations.

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I have an equation for calculating head loss in pipes, and the result comes out as ft/100ft. I don't understand this unit, as I was expecting a unit more in the form of Pa, psi, or something to that effect. If someone can explain it to me I would appreciate it :-)
 
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The units are in terms of head loss per 100 ft of pipe, not pressure drop. Since it is head instead of pressure, the units are a length per length of pipe. It does look a bit weird, admittedly.
 
looks like a typing error, if it is ft/100ft then the ft will cancel out to get 100, the head loss to me sounds like a rate of something, so I would say it should be psi/100ft if you are using those types of units, this is what I think anyway
 
It's not a typing error. It's a perfectly sensible unit, especially if you want to decide, for instance, how high to place a storage tank for a gravity feed.

To convert to Pa per 100 ft. of pipe, multiply the given number by 1000(kg/m3)*9.8(m/s2)*0.30(m/ft).
 
i've never seen that used before, must be because I am english or because I am thick lol I apologise for my false statement before
 

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