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IPEC Pipeline Toolbox | Maximum Allowable Working Pressure
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2013 Ver.



Maximum Allowable Working Pressure

This module gives the maximum internal pressure at which the weakest element of a vessel is loaded to the ultimate permissible point, when the vessel:

  • is not corroded (new)
  • the temperature does not affect its strength (room temperature) (cold) and the other conditions (wind load, external pressure, hydrostatic pressure, etc.) need not be taken into consideration.

i.e: 20 ksi or 150 MPa

i.e: 32 in or 219 mm

i.e: 0.5 in or 20 mm


  1. E. F. Megyesy, 2001, Pressure Vessel Handbook, Pressure Vessel Publishing Inc., USA