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Pressure equipment integrity

You found the damage. Now defend the call.

Run, repair or replace. Work out which, with every step of the calculation on the page behind you.

Failure assessment diagram
Pass Marginal Fail
A crack-like flaw assessment plots the component against the failure assessment curve. Inside the curve, it stays in service.

From inspection to decision

The procedure in the standard has three stages. So does the app.

  1. Describe the flaw

    Pick the damage mechanism and the component geometry, then enter dimensions, material properties, operating conditions and the measurements from the inspection report.

  2. Run the assessment

    The full procedure runs: MAWP, reference stress, stress intensity factors, acceptance criteria. Each equation carries its number from the standard.

  3. Read the result

    Accept or reject, with the calculation behind it, ready for peer review, a client deliverable or a regulator.

Eight kinds of damage

Each one runs Level 1 screening for a quick go or no-go, and Level 2 when the screening is too blunt to settle it.

Every number has a derivation

An assessment you cannot show your working for is an assessment you cannot defend. Every result links back to the equation number and section it came from, and every intermediate value stays visible, on screen and in the PDF.

Assessment levels
Level 1 screening, Level 2 detailed analysis with refined acceptance criteria.
Geometries
Cylinders, spheres, nozzles, elbows, conical shells, elliptical and torispherical heads, fillet welds, plates and round bars.
Units
Metric and imperial, switchable, with inputs, outputs and labels following.
Export
PDF for the report, structured JSON for anything downstream.

Who it is for

Inspection and integrity engineers

Judge whether a flaw matters while the inspection is still open, and put the assessment in the report.

Asset owners and operators

Back a run, repair or replace decision with a documented assessment, and keep the history for each asset.

Consulting engineers

Hand a client the calculation as well as the conclusion, with every equation reference and intermediate value in it.

Students and researchers

Step through a real procedure rather than a worked example, and vary one input at a time to see what moves.

Ready to run an assessment?

Create an account and start with the damage you have in front of you.