Pump, Compressor & Rotating Equipment Assembly worked example

Warranty Exposure with field-failure severity of the assembled unit of 15 score: a worked example in pump, compressor & rotating equipment assembly

This scenario runs the warranty exposure calculation on the strong side: field-failure severity of the assembled unit of 15 score, with every other input held at its documented default. Use it when warranty exposure in pump, compressor and rotating equipment assembly needs a defensible ranking against other pump, compressor and rotating equipment assembly risks for the next review.

The inputs for this scenario

  • Field-failure severity of the assembled unit (1-10): 15 score (raised for this scenario; the documented default is 6)
  • Likelihood of the defect occurring per build (1-10): 4 score (unchanged)
  • Likelihood the defect escapes final test undetected (1-10): 3 score (unchanged)

Working through the calculation

  • Applying the documented formula (Warranty Exposure risk score = severity × 0.40 + occurrence × 0.35 + detection × 0.25) to the inputs above produces each figure below.
  • At this operating point the engine returns 8.15 score for risk score, the number this scenario is built around.
  • At this operating point the engine returns 15 score for severity.
  • At this operating point the engine returns 4 score for occurrence.
  • At this operating point the engine returns 3 score for detection.

How this compares with the baseline

  • Against the tool's baseline example, where field-failure severity of the assembled unit sits at 6 score and the headline result is 4.55 score, this scenario comes in 79.12% above the baseline at 8.15 score.
  • Use it when ranking failure modes during a design or process FMEA, or when setting warranty reserves for a new pump or compressor line. Treat this as a target state: the delta against the baseline quantifies what the improvement is worth before you commit to chasing it.

Results at a glance

  • Risk score: 8.15 score (headline result)
  • Severity: 15 score
  • Occurrence: 4 score
  • Detection: 3 score

Run it with your numbers

  • Every input above is editable in the live Warranty Exposure calculator, which recalculates instantly and can be shared with the inputs intact.

Last reviewed 2026-05-12.