Hose, Tubing & Fluid Conveyance Products worked example

Pressure Decay Test with assembly working pressure of 1,500 psi: a worked example

Suppose assembly working pressure falls to 1,500 psi. This page works the full calculation at that level so you can see exactly which result moves and by how much. Estimate test hold pressure and hourly pressure equivalent for a hose or tubing assembly pressure decay leak test from working pressure, test multiplier, and hold time.

The inputs for this scenario

  • Assembly working pressure: 1,500 psi (the input this scenario stresses; the baseline uses 3,000)
  • Test pressure multiplier: 1.5 x (held at the documented default)
  • Test hold time: 0.08 hr (held at the documented default)

Working through the calculation

  • The calculation starts from the formula this tool documents: Pressure decay test pressure = working pressure x test pressure multiplier.
  • Total load works out to 2,250 psi at these inputs, and this is the headline figure for the scenario.
  • Hourly equivalent works out to 27,108 psi / hr at these inputs.
  • Input load works out to 1,500 psi at these inputs.
  • Test pressure multiplier works out to 1.5 x at these inputs.

How this compares with the baseline

  • Against the tool's baseline example, where assembly working pressure sits at 3,000 psi and the headline result is 4,500 psi, this scenario comes in 50% below the baseline at 2,250 psi.
  • It computes the proof test pressure for a hose assembly by multiplying working pressure by your test multiplier, plus an hourly-rate equivalent based on hold time. 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

  • Total load: 2,250 psi (headline result)
  • Hourly equivalent: 27,108 psi / hr
  • Input load: 1,500 psi
  • Test pressure multiplier: 1.5 x

Run it with your numbers

  • To rerun this with your own numbers, open the live Pressure Decay Test calculator, set assembly working pressure to your actual value, and adjust the remaining inputs to match your operation.

Last reviewed 2026-05-12.