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THE FEUTEX TOOLKIT

Available NPSH from a Reservoir

Estimate available suction head above vapor pressure.

Hydraulics workspace● Runs in your browser
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FormulaNPSHa=(psurface−pvapor)/(ρg)+z−hsuction.
Sources and model references

How to use this tool

  1. Enter every input in the labeled units; use measured or independently specified properties.
  2. Check the stated model assumptions before calculating.
  3. Interpret the output as a model estimate and verify it independently for the intended application.

Try this example

{
  "surface": 101325,
  "vapor": 2339,
  "rho": 998,
  "elevation": 2,
  "loss": 0.5
}

Accuracy and scope

Reservoir surface velocity neglected; actual operating margin over manufacturer NPSHr is not determined. Educational engineering estimate only; not structural or safety certification, equipment selection, or operating recommendations.

Is my data uploaded?

This tool runs locally in your browser. Input and output are not sent to a processing server. Copy or download your result before leaving the page.