Determining Main Line Duct Size
Figure 34
Figure 34.
6''
5''
4''
4''
4''
4''
4''
4''
4''
Determining Branch Line Duct Size
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.
Figure 35
Figure 35.
4''
5''
Here are some frequently asked questions
when determining branch line sizes:
How do I figure which size of branch line to
use if the machine has two dust ports?
Figure 31Figure
36
What if two machines share the same branch
line?
1.
Figure 31
Figure 36
2.
Figure 36
Total CFM Branch Line Size
Figure 36.