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Example calculation

Calculation of Thicknesses of Return Bends and Elbows

according to API standard 530

Attention!
This calculation is only a simplified estimation, and does not replace a detailed design calculation.

Input data

  Outside diameter Do   mm
  or Inside diameter Di   mm
  Center line radius rcl   mm
  Intrados thickness δi   mm
  Extrados thickness δo   mm
  Design pressure p   bar
  Allowable stress σel   N/mm²
 
   
 

Results

  Maximum allowable pressure pmax   bar
 
  Required intrados thickness δi min   mm
  Required extrados thickness δo min   mm

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