New Head-Loss Tables for Sprinkler Laterals

by Amnon Benami,

Serial Information: Journal of the Irrigation and Drainage Division, 1968, Vol. 94, Issue 2, Pg. 185-198

Document Type: Journal Paper


The current approximate procedure of computing head losses in sprinkler laterals, for the purpose of selecting proper diameters, is reviewed. Head-loss expressions that account for both pipe flow as well as quick and branching-flow couplers are developed. These expressions facilitate the computation of pressure heads at end sprinklers on a lateral. The required parameters are diameter of the lateral, number of sprinklers, operating conditions for the selected sprinkler, sprinkler spacings and tubing lengths. The expressions developed can be used in order to prepare tables that may be easily and conveniently employed in the selection of proper lateral diameters. The preparation and use of tables for 3-in. horizontal aluminum laterals are demonstrated.

Subject Headings: Head loss (fluid mechanics) | Pipelines | Pipe flow | Coupling | Computing in civil engineering | Lateral pressure | Parameters (statistics) | Spacing

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