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Thursday, May 20, 2010

Loss coefficients for pipe bends are commonly used in MHP

The losses in figure as shown left , vary according to the R/D ratio and the deflection angle of the bend. An R/D ratio of six results in the lowest head loss, although only a slight decrease is indicated for R/D ratios greater than four. As the fabrication cost of a bend increases with increasing radius and length, there appears to be no economic advantage in using R/D ratios greater than five.

Ref:
BURIED STEEL PENSTOCKS SECOND EDITION 1998
Published by Construction Marketing Committee, AMERICAN IRON AND STEEL INSTITUTE
In cooperation with and editorial collaboration by STEEL PLATE FABRICATORS ASSOCIATION, INC


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