Friction loss involves pressure losses caused by friction of the water on the pipe walls and turbulence inside the pipe. These fiction losses are a function of the pipe length, the pipe's inside diameter, the pipe material, and the flow rate. [psi/100ft, ft/100ft, kPa/100m]
| Friction Loss Characteristics - Polyethylene |  |
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| Friction Loss Characteristics - PVC Schedule 200 | |
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| Friction Loss Characteristics - PVC Schedule 40 | |
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| Friction Loss in Equivalent Feet of Straight Pipe | |
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