Calculating Duct Resistance - Grizzly G0548 Owner's Manual

Calculating Duct Resistance

Duct Approximate
Dia. Static Pressure
Loss Per Foot of
Rigid Pipe
Fitting 90˚ 45˚
Dia. Elbow Elbow
Figure 27.
Figure 27
Approximate
Static Pressure
Loss Per Foot
of Flex Pipe
45˚ 90˚
Wye(Y) Wye(Y)
To calculate the static pressure of any given
line in the system, follow these steps:
1.
2.
3.
Additional Factors
Figure 28.
4.
Figure 29
Note: Always account for a seasoned filter,
so you don't end up with a system that only
works right when the filter is clean.
Main Line
Branch Line
Elbows/Branches
Additional Factors
Total Static Pressure Loss ................
Figure 29.
Figure 27
Figure 27
Figure 28
Static Pressure
4.444