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Determining Main Line Duct Size
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i]Vii]Zvelocityd[i]ZV^g[adlbjhicdi[VaaWZadl
(*%%;EB#
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YgVl^c\Vh^cFigure 56#
Figure 56. BV^ca^cZh^oZaVWZaZYdch`ZiX]#
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Determining Branch Line Duct Size
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i]Vii]ZkZadX^ind[i]ZV^g[adlbjhicdi[VaaWZadl
)%%%;EB#
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edgih^oZ[gdbi]ZbVX]^cZVhi]ZWgVcX]a^cZYjXi
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Note: Systems with powerful dust collectors work
better if multiple blast gates are left open. This
also allows you to run two machines at once.
Experiment with different combinations of blast
gates open/closed to find the best results for your
system.
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A few frequently asked questions when deter-
mining branch line sizes:
What size of branch line do I use if the machine
has two dust ports?
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Figure 53VcYgZ[Zgidi]Vi8;BcjbWZg^cFigure
58#I]Zc!hea^ii]ZWgVcX]a^cZ_jhiWZ[dgZi]ZYjhi
edgihl^i]bViX]^c\YjXih^oZh#
How do I manage two machines on the same
branch line?
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Total CFM Branch Line Size
+%% *
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Figure 58. 7gVcX]a^cZh^o^c\X]VgiWnidiVa8;B
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