Run structured HAZOP studies, cascade findings straight into LOPA scenarios and SIL Verification, and keep every hazard traceable by number alone — grounded in your own P&IDs, not generic AI guesses.
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| # | Deviation / Guideword | Causes | Consequences | Safeguards | Initial | Residual |
|---|---|---|---|---|---|---|
| HAZOP-014 | High Flow — Reactor Feed | Control valve FCV-101 fails open | Reactor R-401 overpressure | PSV-104, HIPPS | High | Low |
| HAZOP-015 | No Flow — Charge Pump | Pump P-201 trip, blocked suction | Process shutdown, batch loss | Low-flow alarm FSL-201 | Medium | Low |
| HAZOP-016 | High Temperature — E-102 | Heat exchanger fouling | Product degradation | TSHH-102, cooling water trip | High | Medium |
Sixteen problems we built HAZOPNexus specifically to remove — not hypothetical ones.
Industry-standard HAZOP, LOPA and SIL verification methodology — structured guidewords, IPL credits, and PFD/RRF conventions throughout.
Node and deviation generation retrieves the actual text of your uploaded drawings — real tag numbers and drawing references, not a generic guess.
A HAZOP deviation, its LOPA scenario, and its SIF share the same sequence number under their own prefix — traceable end to end, no cross-referencing spreadsheets.
Every node, guideword, and deviation row lives in one live, auto-saving worksheet — not a spreadsheet someone has to remember to save and re-share.
Upload P&IDs, prior studies, and cause-and-effect diagrams to the Document Library once — every AI generation feature in the platform retrieves from them instead of hallucinating equipment that isn't there.
Proposed Nodes
Change the prefix, separator, or padding below and watch the whole chain update — exactly how each account's own Numbering Settings works.
Every account configures this once in Numbering Settings — the same sequence number then flows through HAZOP, LOPA, and SIF automatically.
The Generate-from-HAZOP screen is a two-column picker: pull deviations straight from a platform-native study on the left, or bulk-import an external HAZOP CSV from a client or a different system on the right.
Every Safety Instrumented Function gets its own record — target and achieved SIL, required and achieved PFD, Risk Reduction Factor, and a compliance status that's computed, not eyeballed.
| SIF | Target | Achieved | RRF | Compliance |
|---|---|---|---|---|
| SIF-014 | SIL 2 | SIL 2 | 331 | ✓ Pass |
| SIF-201 | SIL 2 | SIL 2 | 119 | ✗ Fail |
| SIF-301 | SIL 2 | SIL 2 | 258 | Pending |
Every agent runs on Claude and is grounded in IEC 61882 / IEC 61511 conventions — none of them touch your study without you reviewing what they propose first.
Upload your P&IDs to the Document Library and this agent proposes a node breakdown for the whole unit — grounded in the actual drawings, not a guess at typical equipment.
Working on one node? This agent searches the Document Library for that node's specific tags and drawing references, then proposes deviations grounded in what it actually finds.
Point it at any open HAZOP study and it audits every node and deviation for the kind of gaps that only show up on a careful second read.
Cascades an approved HAZOP finding straight into a new LOPA scenario — from your own platform study or an external HAZOP CSV from a client.
One click generates a complete, professional report for HAZOP, LOPA, or SIL Verification — A3 landscape, cover sheet, running headers/footers, and a full revision table.
Live, auto-saving worksheet with guidewords, deviations, causes, consequences, safeguards, and recommendations.
Grounded in your own uploaded P&IDs via the Document Library — real tags, real drawing references.
A HAZOP deviation, its LOPA scenario, and its SIF share one sequence number end to end.
5×5 likelihood × consequence matrix, colour-coded, applied automatically to initial and residual risk.
Admin / Editor / Viewer roles, per-study team assignment, shared workspace per account.
Scenario-by-scenario IPL credits, independence checks, and IEC 61511 PFD conventions.
Target/achieved SIL, PFD, RRF, and computed pass/fail compliance per Safety Instrumented Function.
A3 landscape DOCX with real cover sheet, headers/footers, and a revision sign-off table.
A dedicated dashboard per module — HAZOP, LOPA, and SIL — with live stat cards and charts.
DL-numbered folders for P&IDs and reference documents — feeds every AI feature directly.
Group HAZOP, LOPA, and SIL work by facility, client, or study effort — with full edit/delete control.
CSRF protection, bcrypt passwords, SQL injection prevention, session management, and full audit trail.
Import a CSV, start from a template, begin blank, or launch AI Generate from your Document Library.
The Node & Deviation Generator drafts a worksheet grounded in your uploaded P&IDs.
Fill in the worksheet, assign initial/residual risk, and track recommendations as they come up.
Run AI Study Review for a full completeness pass before you close out the workshop.
Generate LOPA scenarios straight from the HAZOP, then verify SIL and log the SIF register.
Export a structured Word (A3), PDF, or CSV report — tracked by revision, ready to issue.
Choose the plan that fits your team. Every plan includes the core HAZOP worksheet and PDF export.
HAZOP, LOPA & SIL Verification can also be licensed as independent modules — talk to us about a modular quote.
No. Every AI agent drafts; nothing is written to your study without you reviewing and approving it. The Node and Deviation Generators propose a first pass, and AI Study Review flags gaps — the facilitator still owns every decision in the room.
A HAZOP deviation draws a fresh sequence number from its project. Anything generated from that deviation — a LOPA scenario, then a SIF — reuses the same sequence number under its own module prefix, so HAZOP-014, LOPA-014, and SIF-014 all refer to the same hazard. Each account can customise the prefix, separator, and digit padding in Numbering Settings.
Yes — Import from CSV creates a new study directly from a spreadsheet, and LOPA's Generate-from-HAZOP screen can bulk-import an external HAZOP CSV straight into new LOPA scenarios.
No. HAZOP, LOPA, and SIL Verification are independently licensable modules, so a team only pays for what it actually uses.
It scans every node and deviation in an open study for under-analysed rows, missing standard guidewords, deviations with weak or missing safeguards, and high-risk items still open — the kind of gap a careful second read would catch.
Word (DOCX, A3 landscape) with a real cover sheet, running headers/footers, and a Prepared/Reviewed/Approved revision table, plus PDF and CSV export — for the HAZOP Full Report, HAZOP Worksheet, LOPA Report, and SIL Report.
Yes — invite team members as Admin, Editor, or Viewer, and assign specific people to a study's team. Everyone sees the same live worksheet, dashboard, and recommendation tracker.
In your HAZOPNexus cloud workspace, accessible from any browser — nothing to install, no local IT setup required.
Join process safety engineers from Oil & Gas, LNG, Refinery, and Petrochemical industries who use HAZOPNexus to keep every hazard traceable, end to end.