Table 3
Table of flows in gm/hr. from "Spinnerette Orifices"
dia.
(in inches)
Q (actual) in gm/hr.
at 24 Hd.
at 22" Hd.
at 20" Hd.
at 18" Hd.
.003 35 33.5 32 30.5
.004 62.8 60 57 54.5
.005 97.5 93.5 88.8 84.5
.006 141 134 128 122
.007 192 184 175 166
.008 251 241 229 217
.009 317 303 289 274
.010 392 375 358 340
.011 474 453 433 410
.012 564 540 515 488
$$
\begin{aligned}
& Q \text{ (actual) gm/hr.} = C_d \text{ (dia."})^2 \text{ (hd."})^{\frac{1}{2}} \\
& \quad \times 1.003 \times 10^6 \\
& \quad (C_d \text{ varies from .78 to .82}) \\
& \quad C_d \text{ (mean)} = .80 \text{ (used above)} \\
& \frac{Q_1}{Q_2} = \left( \frac{\text{hd.}_1}{\text{hd.}_2} \right)^{\frac{1}{2}}
\end{aligned}
$$
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