Pump, Compressor & Rotating Equipment Assembly worked example

Seal Leak Rate at 99% first-pass seal target: a worked example

Push first-pass seal target up to 99% and the picture changes. This example computes every intermediate figure at that operating point. Use it when seal leak rate in pump, compressor and rotating equipment assembly needs a clean rate and gap-to-target you can put on a tier board.

The inputs for this scenario

  • Units failing seal leak test: 8 units (unchanged)
  • Units seal-tested: 250 units (unchanged)
  • First-pass seal target: 99 % (raised for this scenario; the documented default is 95)

Working through the calculation

  • Applying the documented formula (Seal Leak Rate rate = affected amount รท total amount) to the inputs above produces each figure below.
  • At this operating point the engine returns 3.2 % for rate, the number this scenario is built around.
  • At this operating point the engine returns 95.8 points for gap to target.
  • At this operating point the engine returns 8 count for affected count.
  • At this operating point the engine returns 250 count for total count.

How this compares with the baseline

  • Against the tool's baseline example, where first-pass seal target sits at 95% and the headline result is 3.2 %, this scenario lands almost exactly on the baseline at 3.2 %.
  • It computes the seal leak-fail rate as failed units divided by tested units, then compares it to your target to show the gap. The value of this scenario is the size of the gap it exposes: that gap, priced out over a year, is the budget you can justify spending to close it.

Results at a glance

  • Rate: 3.2 % (headline result)
  • Gap to target: 95.8 points
  • Affected count: 8 count
  • Total count: 250 count

Run it with your numbers

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

Last reviewed 2026-05-12.