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fundamentals of engineering supplied-reference handbook - Ventech!

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MOODY (STANTON) DIAGRAM<br />

e, (ft) e, (mm)<br />

Riveted steel l0.003-0.03 0.9-9.0<br />

Concrete 0.001-0.01 0.3-3.0<br />

Cast iron 0.00085 0.25<br />

Galvanized iron 0.0005 0.15<br />

Commercial steel or wrought iron 0.00015 0.046<br />

Drawn tubing 0.000005 0.0015<br />

54<br />

FLUID MECHANICS (continued)<br />

From ASHRAE (The American Society <strong>of</strong> Heating, Refrigerating and Air-Conditioning Engineers, Inc.)n <strong>of</strong> ASHRAE.

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