Flow Nozzle Calculator (ISA 1932)
Flow through an ISA-1932 nozzle from differential pressure — high-velocity steam/water metering.
Nozzles tolerate erosive, high-velocity flows that wear orifice plate edges out of calibration — the classic boiler feedwater meter.
Formula
Flow Nozzle Calculator (ISA 1932) is a free flow nozzle for process, mechanical and water engineers — instant, accurate and 100% client-side, with the governing formula and reference shown next to the result so the number can be defended, not just quoted.
About Flow Nozzle Calculator (ISA 1932)
Flow through an ISA-1932 nozzle from differential pressure — high-velocity steam/water metering. The calculation implements Q = C·A₂·√( 2ΔP / (ρ(1−β⁴)) ) (ISO 5167-3 — nozzles and venturi nozzles). Nozzles tolerate erosive, high-velocity flows that wear orifice plate edges out of calibration — the classic boiler feedwater meter.
How to use Flow Nozzle Calculator (ISA 1932)
- 1Enter Pipe diameter D in mm.
- 2Enter Nozzle throat d in mm.
- 3Enter Differential pressure in kPa.
- 4Enter Fluid density in kg/m³.
- 5Read Flow rate, β ratio instantly — no submit button needed.
- 6Need US units? Flip the SI/Imperial toggle and every field converts.
Why use Flow Nozzle Calculator (ISA 1932)?
- ✓Implements the standard formula — Q = C·A₂·√( 2ΔP / (ρ(1−β⁴)) )
- ✓Reference cited on-page: ISO 5167-3 — nozzles and venturi nozzles
- ✓One-click SI ⇄ Imperial toggle — values convert in place, physics stays in SI
- ✓Runs entirely in your browser — nothing uploaded, free forever
Frequently asked questions
What formula does the Flow Nozzle Calculator (ISA 1932) use?+
It computes Q = C·A₂·√( 2ΔP / (ρ(1−β⁴)) ), per ISO 5167-3 — nozzles and venturi nozzles. The formula is displayed under the result.
What should I keep in mind when using this calculator?+
Nozzles tolerate erosive, high-velocity flows that wear orifice plate edges out of calibration — the classic boiler feedwater meter.
Does this work for any fluid?+
Yes — density and viscosity are inputs (with common fluids suggested in the field hints), so the same physics applies to water, oils, gases and process fluids. Compute always runs in SI internally, so unit mix-ups can't corrupt the result.
Is the Flow Nozzle Calculator (ISA 1932) free to use?+
Yes — completely free, no sign-up, no limits. It runs client-side in your browser, so inputs stay private and results are instant even on slow connections.
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