| Example | What it shows |
|---|---|
| SIF-101 Separator high pressure | 2oo3 transmitters, one valve; meets SIL 2 with a perfect test but not with realistic 80 % valve coverage |
| SIF-102 Compressor scrubber high-high level | Four groups in series; the suction valve dominates; asset and safety consequences |
| SIF-103 Fired heater flame failure | Double block valves (1oo2) with common cause; burner management |
| SIF-104 Reactor high temperature | SIL 3 with partial stroke testing; deliberately fails the target so you can find the fix |
| SIF-105 Tank overfill | SIL 1 with an energise-to-trip motor-operated valve |
| SIF-106 Batch charging interlock | High demand mode (PFH) |
Each has a LOPA scenario (plus a pump seal scenario that needs no SIF), HAZOP nodes reference the SIF tags, and the separator/compressor C&E matrix contains their trips. Demo project in the top bar loads everything at once. All values are illustrative training data.
Written for First Out AI as engineering guidance. It supports engineering work and does not replace it; check every value against your standards, certificates and company rules with a competent functional safety engineer.