Fire Suppression, Sprinkler & Safety System Products worked example

Hydrotest Throughput at 59% hydrotest efficiency: a worked example

This worked example runs the hydrotest throughput numbers for a tougher week than the baseline: 59% hydrotest efficiency instead of the typical 82%. Calculate effective hydrostatic test throughput from completed tests, runtime, and practical test efficiency.

The inputs for this scenario

  • Completed hydrotests: 360 tests (held at the documented default)
  • Hydrotest runtime: 8 hr (held at the documented default)
  • Hydrotest efficiency: 59 % (the input this scenario stresses; the baseline uses 82)

Working through the calculation

  • The calculation starts from the formula this tool documents: Raw hydrotest throughput = completed hydrotests รท hydrotest runtime.
  • Effective hydrotest throughput works out to 26.55 units / hr at these inputs, and this is the headline figure for the scenario.
  • Raw throughput before efficiency works out to 45 units / hr at these inputs.
  • Efficiency works out to 59 % at these inputs.
  • Runtime works out to 8 hr at these inputs.

How this compares with the baseline

  • Against the tool's baseline example, where hydrotest efficiency sits at 82% and the headline result is 36.9 units / hr, this scenario comes in 28.05% below the baseline at 26.55 units / hr.
  • Use it when scheduling the hydrotest bench, identifying it as a line bottleneck, or quoting a realistic test rate for a production batch. A result at this level usually justifies acting on the stressed input before touching anything else, because every other figure in the table is downstream of it.

Results at a glance

  • Effective hydrotest throughput: 26.55 units / hr (headline result)
  • Raw throughput before efficiency: 45 units / hr
  • Efficiency: 59 %
  • Runtime: 8 hr

Run it with your numbers

  • To rerun this with your own numbers, open the live Hydrotest Throughput calculator, set hydrotest efficiency to your actual value, and adjust the remaining inputs to match your operation.

Last reviewed 2026-05-12.