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HSep-Designer+ — 3-Phase Separator Sizing Tool

API 12J · RP 14E · GPSA · API 421

HSep-Designer+

A deterministic horizontal 2/3-phase separator sizing & operability tool. Every number is computed by a validated engine and stays reproducible, traceable, and defensible — the kind of result you can put in a bid.

Runs entirely in your browser — your process data never leaves your machine.

Launch HSep-Designer+ → ● Included with Pro

What it does

Sizing & rating

Gas/liquid capacity, retention time, droplet settling, demister & nozzle checks — auto-sized across every case.

Operating envelope

Feasible-region maps, sensitivity, optimiser, scenario planning & Well-Test mode — see how the design behaves before it’s built.

Controlled report

A 13-sheet datasheet with title block, revision table, guarantee sheet & per-value confidence tags. Print-ready.

Engineering intelligence

A deterministic rule engine that recommends internals, flags risks, and explains every verdict — no black-box AI in the numbers.

How it compares

Benchmarked against the market incumbent — reproduces its reference geometry exactly, then goes further.

CapabilityLegacy calculatorsHSep-Designer+
EOS z-factor · GPSA pressure-derated K—✓
Emulsion & auto viscosity · °API input—✓
Operating-envelope & scenario analysis—✓
Interactive what-if & live charts—✓
Confidence-tagged, offline & confidential—✓

Try it free, upgrade when you’re ready

The engine and controlled report are free on the Community plan. Pro unlocks the full engineering-intelligence layer — envelope, optimiser, scenarios, internals advisor and design review — plus the entire DesignHub course library.

Launch the tool → See Pro plans

Preliminary design information — all results to be verified by qualified personnel.