One of the fundamental concerns in piping is the minimum wall thickness for exposure to given temperatures and pressures.

There are a variety of approaches (in fact, there are more than 20 variations in hoop stress formulas, each which address different failure modes that can occur), but what is shown is a calculator that offers three methods: 1) AS 4041, 2) ASME B31.3, and one which is suitable for polyethylene pipes in Australia.

AS 4041 wall thickness inputs:


ASME B31.3 wall thickness inputs:

The minimum wall thickness is a fundamental parameter, but it is also not necessarily straightforward, and the calculation can have a dramatic impact on safety and cost. If you would like help, or a third party review, please contact Pump & Flow.

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