Project Details

Inputs

PN Rating

Operating Temperature (°C)

Calculation Mode

Fluid / Application

Minimum Requirement mode assumes water/sewerage service, no extra location derating (f2 = 1.0), and no extra installation derating (f3 = 1.0).

This version uses a PE100 manufacturer MAOP rerating table from 20°C to 80°C and linearly interpolates between the published temperature points.

Results

Interpolated Rerated Results

Selected PN Rating

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Standard Series 1 PN class

Nominal Working Pressure @ 20°C

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PN / 10 in MPa

Interpolated Rerating Factor R(T)

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Rerated MAOP at Temperature

—

Interpolated directly from published MAOP data

AS/NZS 4130 Design Method Results

Fluid Factor f0

—

Water / sewerage factor

Location Factor f2

—

Installation Factor f3

—

Overall Design Coefficient C

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C = f0 × f1 × f2 × f3 (AS/NZS 4130 method)

AS/NZS 4130 MAOP

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Using design factor method

Select PN and enter temperature to calculate MAOP.

Calculation Breakdown

Select PN and enter temperature.

Notes

This calculator uses a PE100 manufacturer rerating table from 20°C to 80°C for direct temperature interpolation.
AS/NZS 4130 MAOP is also shown using the Appendix B / Appendix C design factor method.
Minimum Requirement mode assumes water/sewerage service only.
Minimum Requirement mode assumes no extra location derating (f2 = 1.0).
Minimum Requirement mode assumes no extra installation derating (f3 = 1.0).
50°C, 55°C, 60°C and 80°C table points may carry reduced extrapolated service-life bases in the source publication.
Outside the published temperature table, the calculator returns “Refer manufacturer”.

Disclaimer

This calculator provides indicative PE100 pressure rerating values using manufacturer-published MAOP temperature data together with the AS/NZS 4130 design-factor method. Results are for guidance only and do not replace manufacturer advice, project design, or engineering verification. For temperatures outside the published table, for chemicals or contaminants, for pumped systems, or for unusual loading or installation conditions, refer to the manufacturer and the relevant design standard before use.