28 calculators for line sizing, pumps, heat exchangers, distillation, relief valves and more — each built on API, TEMA, ASME & IEC methods, and each result names the correlation it used. For preliminary sizing, FEED checks and independent cross-checks.
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No broken spreadsheets, no re-deriving correlations. Type, calculate, verify.
Flow, pressure, temperature, fluid — in SI or Imperial. Sensible defaults and unit-aware inputs keep it fast.
Line size, pump head, valve Cv, exchanger area, relief load — computed the moment your inputs are valid.
Every result names the correlation and code behind it, so you can check it, cite it, and trust it.
Stop hunting through spreadsheets, textbooks and half-remembered correlations.
API 14E, Darcy-Weisbach, erosional velocity — liquid, gas & two-phase.
TDH, NPSH, motor selection per API 610.
Cv/Kv sizing, choked flow & cavitation per IEC 60534.
Shell & tube, plate, air cooler & fired heater — TEMA / Bell-Delaware.
McCabe-Thiele, FUG shortcut, column hydraulics & internals.
PSV sizing, blowdown & fire case per API 520/521.
Centrifugal, reciprocating & screw per GPSA / API 617.
2- & 3-phase, KO drums & slug catchers per API 12J.
Vessels, piping, instrumentation, economics, utilities & consequence modelling.
Every result cites the correlation and code it used — API, TEMA, ASME, IEC, GPSA, Fogler. Verifiable, not magic.
Enter your process conditions, get a sized result with the method cited. No broken cells, no unit mix-ups, no correlation to re-derive.
The routine sizing and cross-check calculations you run every day, at a price any engineer can put on an expense report.
Nothing to install, no licence server. Open a tab and calculate — on any machine.
Give it process requirements, get the equipment dimension out — the way design should work.
We tell you when a result is a screening estimate vs a rigorous number. Credibility over hype.
Start free. Upgrade when you need the full suite.
No. EnggiBasis is built for preliminary sizing, FEED checks and independent cross-checks of the routine calculations you do every day — line sizing, pump/valve/vessel sizing, relief loads, shortcut distillation. It is not intended for design-of-record or rigorous multi-phase flowsheet simulation with proprietary thermodynamics; dedicated process simulators still lead there, and every result tells you the method it used so you can verify it.
Published, verifiable methods: API 14E, API 610, API 520/521, API 12J, TEMA, Bell-Delaware, ASME Section VIII, ASME B31.3, IEC 60534, GPSA, IAPWS-IF97, Fogler, McCabe-Smith and more. Each result names the method it used.
No. EnggiBasis runs entirely in your browser on any computer — nothing to install, no licence server.
Yes. Pro is ₹99/month, cancel whenever you like, and you keep access until the end of your paid period.
Your calculation inputs run in your browser. We only store your account email and subscription status. See our Privacy Policy.
I got tired of rebuilding the same sizing spreadsheets — and of results I couldn't trace. So I built the tool I wanted: fast, and honest about the method behind every number.
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