Tank, Vessel & Pressure Equipment Fabrication worked example

Nozzle Labor at 58% productive-time capture factor: a worked example

Suppose productive-time capture factor falls to 58%. This page works the full calculation at that level so you can see exactly which result moves and by how much. Nozzle Labor estimates the shop cost of laying out, cutting, fitting and welding every nozzle and manway on a tank or ASME pressure vessel.

The inputs for this scenario

  • Nozzle count on the vessel: 100 units (held at the documented default)
  • Fully burdened labor rate per nozzle: 45 $ / unit (held at the documented default)
  • Productive-time capture factor: 58 % (the input this scenario stresses; the baseline uses 80)
  • Fixed nozzle setup charge: 250 $ (held at the documented default)

Working through the calculation

  • The calculation starts from the formula this tool documents: Nozzle Labor cost = quantity × rate × capture factor + fixed cost.
  • Weighted cost works out to 2,860 $ at these inputs, and this is the headline figure for the scenario.
  • Per piece value works out to 28.6 $ / piece at these inputs.
  • Captured value works out to 2,610 $ at these inputs.
  • Fixed adjustment works out to 250 $ at these inputs.

How this compares with the baseline

  • Against the tool's baseline example, where productive-time capture factor sits at 80% and the headline result is 3,850 $, this scenario comes in 25.71% below the baseline at 2,860 $.
  • It multiplies nozzle count by a fully burdened per-nozzle rate, discounts for realistic productive time, then adds a fixed setup charge to give total and per-nozzle labor cost. 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

  • Weighted cost: 2,860 $ (headline result)
  • Per piece value: 28.6 $ / piece
  • Captured value: 2,610 $
  • Fixed adjustment: 250 $

Run it with your numbers

  • To rerun this with your own numbers, open the live Nozzle Labor calculator, set productive-time capture factor to your actual value, and adjust the remaining inputs to match your operation.

Last reviewed 2026-05-12.