Grizzly G0442 Dust Collector User Manual


 


Calculating Duct Resistance
      

    

    

    





       


Figure 53

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)
    
    
    
    
    
    
Figure 53. 





To calculate the static pressure of any given
line in the system:
1. 

Figure 53
2. 
   
Figure 53
3. Figure 54

4.         
Figure 55

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.
Additional Factors Static Pressure






Figure 54. 

Figure 55.
Main Line
6" Rigid Pipe (0.037) at 20' ................ 0.740
Branch Line
4" Rigid Pipe (0.075) at 10' ................ 0.750
4" Flex Pipe (0.28) at 5' ........................ 1.400
Elbows/Branches
6" 45˚ Y-Branch ................................ 0.329
4" 45˚ Elbow ........................................ 0.225
Additional Factors
Seasoned Filter ................................ 1.000
Total Static Pressure Loss ................ 4.444