Fire Suppression, Sprinkler & Safety System Products worked example

Valve Leak Test Rate at 71% target leak-test pass rate: a worked example

Suppose target leak-test pass rate falls to 71%. This page works the full calculation at that level so you can see exactly which result moves and by how much. Calculate valve leak-test pass rate from valves passing leak criteria versus valves tested and compare with the target.

The inputs for this scenario

  • Valves passing leak test: 242 valves (held at the documented default)
  • Total valves leak tested: 250 valves (held at the documented default)
  • Target leak-test pass rate: 71 % (the input this scenario stresses; the baseline uses 98)

Working through the calculation

  • The calculation starts from the formula this tool documents: Valve Leak Test Rate = valves passing leak test รท total valves leak tested.
  • Valve Leak Test Rate works out to 96.8 % at these inputs, and this is the headline figure for the scenario.
  • Gap to valve leak test rate target works out to -25.8 points at these inputs.
  • Valves passing leak test works out to 242 valves at these inputs.
  • Total valves leak tested works out to 250 valves at these inputs.

How this compares with the baseline

  • Against the tool's baseline example, where target leak-test pass rate sits at 98% and the headline result is 96.8 %, this scenario lands almost exactly on the baseline at 96.8 %.
  • It divides valves passing the leak test by total valves tested and expresses the result as a percentage, then shows how many points you sit below (or above) your target pass rate. When the numbers land here, the stressed input is the lever to work; the walkthrough above shows exactly how much each output recovers as it climbs back toward the baseline.

Results at a glance

  • Valve Leak Test Rate: 96.8 % (headline result)
  • Gap to valve leak test rate target: -25.8 points
  • Valves passing leak test: 242 valves
  • Total valves leak tested: 250 valves

Run it with your numbers

  • To rerun this with your own numbers, open the live Valve Leak Test Rate calculator, set target leak-test pass rate to your actual value, and adjust the remaining inputs to match your operation.

Last reviewed 2026-05-12.