Chapter 10O

10O. Equivalent Length Calculations using Equations in Table 10.2 Back to Main

This page is used to determine the equivalent length of a pipeline transporting liquids with multiple pipe segments (up to 4 pipe segments). The situation often arises when it is convenient to use several diameters of pipe in series. Fluid principles also may be applied in this case after proper analysis of the conditions present. However, no single equation can be written between the varying diameters. A convenient solution is afforded by determining a single-diameter line that is equivalent to the multiple segments. If the physical properties of the fluid remain essentially unchanged throughout the line the following equation can be used.

Equation 10.35

Where is defined as the length of line diameter

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