Size and verify orifice plates, Venturi tubes, and flow nozzles per ISO 5167. Gas, liquid, steam, and water. Results update as you type.
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FlowCalc handles orifice plates, Venturi tubes, ISA 1932 nozzles, and long-radius nozzles. Gas, liquid, saturated steam, superheated steam, and water, all in one tool. IAPWS-IF97 steam properties are built in, so you never look up a table again.
Type a value, change a unit, switch fluid type. The calculation updates immediately. Solve for flow rate, orifice bore, or differential pressure — the app figures out what you're asking for.
No spreadsheets. No desktop installs. No emailing files.
Corner tap, flange tap, and D & D/2 tap orifice plates. ISA 1932 and long-radius nozzles. Venturi tubes. Restriction orifice sizing.
Gas, liquid, water, saturated steam, and superheated steam. Density and viscosity computed automatically for steam and water via IAPWS-IF97.
Solve for flow rate, orifice bore, or differential pressure. Auto-recalculates when you change any input. Handles choked flow and cavitation.
Upstream and downstream straight pipe length requirements from ISO 5167-2 Table 3 and ISO 5167-3 Table 1. Both 0% and 0.5% additional uncertainty.
Generate a complete, printable report with all inputs, results, validity flags, and pipe length tables. Ready to attach to a project dossier.
Invite colleagues to your organisation. Everyone sees the same calculations. No more emailing spreadsheet versions back and forth.
Windows, Mac, Linux, iPad. Any modern browser. No installation, no IT department required.
Updates happen server-side. Everyone on your team is always on the same version.
Calculations belong to your organisation, not to one person's laptop. Share access, not files.
No account needed to try. $490 per seat per year when you're ready.