Process safety, screened from the model
Flammability, toxicity, relief scope and HAZOP action items — read straight from the flowsheet you already solved.
Whole-flowsheet safety pass
Every solved stream is screened at once — no manual per-stream checks. Run the simulation and the safety review is already there.
Flammability (NFPA / NIOSH)
Each vapor/two-phase stream is checked against its LEL–UEL window; in-range streams are high-severity ignition risks, fuel-rich streams flag air-ingress hazards.
Toxicity (NIOSH IDLH)
Streams carrying H₂S, CO, NH₃, benzene, chlorine, SO₂ and more are flagged against their Immediately-Dangerous-to-Life-or-Health limits — the release-consequence radar for a HAZOP.
Relief scope (API 521)
Every pressure-holding vessel is listed with its highest operating pressure and whether it holds a flammable or toxic inventory — the checklist a relief study starts from.
PRV & flare sizing (API 520 / 521)
Size a pressure-relief-valve orifice by the API 520 critical-flow equation, run the API 521 external-fire case, and check built-up back-pressure across a converging flare-header network.
Ranked HAZOP action items
Flags and relief items roll up into severity-ranked action items and an overall risk level — the artifact that gets a safety review started, generated from the model.
Why this is different
In a legacy tool, safety review lives in a separate application disconnected from the simulation — you re-enter stream data by hand. Because MaximaLabs's simulator and safety layer share one unified data model, the flammability, toxicity, and relief screening is a byproduct of every converged solve, and it re-runs the moment the process changes.
Honest by design
- ✓This is a screening aid — it gets a HAZOP started, it does not replace one. A certified study adds dispersion modeling, overpressure scenarios, and SIL/LOPA analysis.
- ✓Flammability and toxicity limits are the published NFPA 497 / NIOSH tabulations, cited per component — not invented numbers.
- ✓The relief-scope pass flags which vessels need a PRV and the governing-case sizing math is real API 520/521; the auto-detection of the governing scenario per vessel is a screening heuristic, not a full relief basis.
- ✓The solver produces every stream number; this layer only compares them to safety limits — it never invents process values.
From flowsheet to HAZOP starting point
Open the Process Safety panel on any solved simulation and read the ranked action items, per-stream flags, and relief scope — then sit down to your review already knowing where the hazards are.
Try it free