Max. Allowable Internal Pipe Pressure

  1. This calculator, which has been generously provided by, will help you calculate the maximum allowable internal pipe pressure, according to the ASME pressure piping code B31.3. To use this calculator, click on the link below:
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  4. Disclaimer: Light My Pump is confident this calculator works as intended, however, they cannot be held responsible for any negative consequences of their use. You may check the results at all times, a practice they encourage since the answers can be easily calculated with the formulas provided on their site. offers this calculator to its users with the belief that it is a useful analysis tool but does not guarantee its accuracy.