Design of sewer diameter for fixed flow-rate  
   
The app returns the design diameter in a sewer for a fixed flow-rate, for different types of pipe                        
         
             
 Design flow-rate Q (m3/sec)                  
Filling rate%   %  
               
 Design filling rate h/r ( )                  
Inclination i (  )                  
Roughness coefficient                    
Gauckler-Strickler (G-S) Ks (m1/3s-1)                  
 A/r2 ratio A/r2 (  )                  
 R/r ratio R/r (  )                  
 Internnal diameter Di (mm)                  
 Pipe type       EuroSewer   EuroSewer   Normopipe   Normopipe    
    OD   ID            
Reference norm       UNI EN 13476-3   UNI EN 13476-3   UNI EN 1401   UNI EN 12666    
 Raw material       PE   PE   PVC-U   PE    
 SN   (Kpa)  
 
 
 
 
    DN/OD   DN/ID   DN/OD   DN/OD  
 Nominal design diameter