 Sizing Valve
 Surge Calculation
 Orifice
Input Data  

Product/Function  
Valve Body Pattern  
Maximum Flow Rate  (usgpm) (l/s) 
Minimum Flow Rate  (usgpm) (l/s) 
Inlet Pressure  (psi) (bar) 
Units  
Result 

Series 106 
Series 206 
Info 

Series 106  
Cv [%]  Opening [%]  V* [ftm/s]  
Q max.  
*Seat Velocity 
Series 206  
Cv [%]  Opening [%]  V* [ftm/s]  
Q max.  
*Seat Velocity 
Series 106 Graph 

Series 206 Graph 

Input Data  

Q  (usgpm) (l/s) 
d  (inch) (mm) 
Stat Pressure  (psi) (m) 
Op Pressure  (psi) (m) 
a  (ft/s) (m/s) 
L  (ft) (m) 
T stop  (s) (s) 
Units  
Recommended Valve Sizes  

Globe  
Series 106  
Series 206  
Angle  
Series 106  
Series 206 
Set Points  
81RP Set Point: psi m  82RP Set Point: psi m 
Disclaimer: Surge calculations and results shown are estimates only. A proper surge analysis of your system must be performed by a qualified engineer specializing in surge and transient analysis. 
Graph 

Note: Illustrated without Surge Valve installed. 
 Orifice
 Flow Rate / Differential Pressure
Notes 
This application is used for sizing orifice plates, which is used with Rate Flow Control and Pressure Flow Control Values. 
Instructions 

Asumptions 

Process Data  
Flow Rate  
  ft3/sec  
  USGal/min 
Differential Pressure  
Differential Pressure  
  psi 
Piping Data  
Size  
Schedule    
I.D.    inches 
Reynold's Number  
Re    Turbulent 
Orifice Sizing  
Cd    
hL    ft. of process 
Beta Ratio, d0/d1    
Flow Coefficient, C    
Bore Size, d0    inches 
Calculator type 
Inputs  

Differential Pressure  
Size  
Cd  
Bore Size, d0  inches 
Inputs  

Flow Rate  
  ft3/sec  
Size  
Cd  
Bore Size, d0  inches 
Outputs  

Beta Ratio, d0/d1    
hL    ft. of process 
Flow Rate    litres/sec 
  ft3/sec 
Outputs  

Beta Ratio, d0/d1    
hL    ft. of process 
Differential Pressure    bar 