Oil, Gas & Energy Equipment Manufacturing worked example

Valve Test Cycle Time at 12% fixturing, changeover, and recording allowance: a worked example

This scenario runs the valve test cycle time calculation on the strong side: 12% fixturing, changeover, and recording allowance, with every other input held at its documented default. Use it when planning a valve test run and you want to see how a change in test rate or fixturing allowance moves the total hours.

The inputs for this scenario

  • Valves to test: 120 units (unchanged)
  • Valve test rate: 12 units / min (unchanged)
  • Fixturing, changeover, and recording allowance: 12 % (raised for this scenario; the documented default is 10)

Working through the calculation

  • Applying the documented formula (Base valve test time = valves to test รท valve test rate) to the inputs above produces each figure below.
  • At this operating point the engine returns 11.2 hr for required valve test labor, the number this scenario is built around.
  • At this operating point the engine returns 10 hr for base valve test time.
  • At this operating point the engine returns 12 % for fixturing and changeover allowance applied.
  • At this operating point the engine returns 12 pieces / min for valve test rate.

How this compares with the baseline

  • Against the tool's baseline example, where fixturing, changeover, and recording allowance sits at 10% and the headline result is 11 hr, this scenario comes in 1.82% above the baseline at 11.2 hr.
  • Use it when scheduling the valve test bench, staffing a test shift, or quoting a test scope for a batch of valves. 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

  • Required valve test labor: 11.2 hr (headline result)
  • Base valve test time: 10 hr
  • Fixturing and changeover allowance applied: 12 %
  • Valve test rate: 12 pieces / min

Run it with your numbers

  • Every input above is editable in the live Valve Test Cycle Time calculator, which recalculates instantly and can be shared with the inputs intact.

Last reviewed 2026-05-12.