Figure 44.
Duct
Dia.
Approximate
Static Pressure
Loss Per Foot of
Rigid Pipe
Approximate
Static Pressure
Loss Per Foot
of Flex Pipe
Fitting
Dia.
90˚
Elbow
45˚
Elbow
45˚
Wye(Y)
90˚
Wye(Y)
To calculate the static pressure of any given
line in the system, follow these steps:
1.
2.
Step 4
Table
Two Machines on Same Branch Line
Total CFM Branch Line Size
Calculating Duct Resistance
Multiple Dust Ports
Step 4
Table
