Emerging Skills Program — no certification exam
PSV & Flare System Integrity
Relief devices and the flare network behind them: sizing basis, testing regime, and whether the system would actually hold on the worst credible day.
Why this matters
The problem this solves
A relief valve that passes its bench test is not the same as a relief system that would protect the plant, and the difference is almost never in the valve.
Most relief work in practice is device-level: pop test, reseat, reinstall, record. The system-level question — is the sizing basis still valid, does the header have the capacity for the governing simultaneous case, and what happens to backpressure when it does — is asked far less often, and it is where the exposure sits.
This programme works both levels. API 520 and 526 for the device, API 521 for the system and the governing scenarios, API RP 576 for the inspection regime, and the debottlenecking question that arises whenever a unit has been uprated since the relief study was written.
Before you enrol
Is this a certification?
The short answer is no, and it is worth being explicit about it rather than leaving it to be discovered later.
What this programme gives you
- Three days covering both the device and the system it discharges into
- Worked sizing and backpressure checks against real scenarios
- A revalidation checklist for a relief study after a plant change
- An EIM certificate of completion
What it does not
- Not preparation for a certification exam — no certifying body examines this subject
- No API credential at the end
- Not a valve technician or bench-testing qualification
- Not a substitute for a full relief study by a competent engineering contractor
If you need a recognised credential, start at certification exam preparation.
Who it's for
Roles this is built around
Process safety engineers
Any level
Owning the relief study and the scenarios it rests on.
Inspection engineers
Fixed equipment
Running the PSV testing programme and setting its intervals.
Operations and turnaround planners
Any level
Deciding what comes off for test and what the plant can run without.
What it covers
The outline
An outline, not a weighted Body of Knowledge — nobody publishes weights for a subject with no exam behind it.
What relief protects against
Overpressure scenarios, and why the governing case is so often not the obvious one.
Device types and selection
Conventional, balanced bellows and pilot-operated, and what each does under backpressure.
Sizing basis (API 520)
Required relieving rate, the sizing calculation, and the assumptions that decay silently.
The flare system (API 521)
Simultaneous relief, header hydraulics, backpressure and the knock-out drum.
Testing and inspection (API RP 576)
Pop testing, seat tightness to API 527, intervals, and reading a test report properly.
When the plant has changed
Revalidating a relief study after an uprate, a feedstock change or a tie-in.
Outcomes
What you will be able to do
- Identify the governing overpressure scenario for a piece of equipment and justify it
- Check whether an existing PSV sizing basis is still valid for how the unit runs today
- Select a device type appropriate to the backpressure it will actually see
- Read a bench test report and tell a passing valve from a valve that passed the wrong test
- Set a defensible test interval rather than inheriting one
- Recognise when a plant change has invalidated the relief study and say so
Standards referenced
What the programme works from
| Standard | What we use it for | Note |
|---|---|---|
| API 520 Pt I & II | Sizing, selection and installation of pressure-relieving devices | The sizing basis |
| API 521 | Pressure-relieving and depressuring systems | The system and flare network |
| API 526 | Flanged steel pressure-relief valves | Device standardisation |
| API 527 | Seat tightness of pressure-relief valves | What a passing test means |
| API RP 576 | Inspection of pressure-relieving devices | The inspection regime |
How it runs
Ways to take it
Formats offered — not scheduled dates. Live cohort dates live on the course page, so there is only ever one copy of a date.
| Format | Duration | Group size | Notes |
|---|---|---|---|
| Live online | 3 days | Up to 15 | Split across sessions rather than run as consecutive full days |
| In-house | By arrangement | 6–20 | Delivered against your own equipment, your own findings and your own procedures |
FAQs
Questions people ask first
No. API publishes the standards — 520, 521, 526, 527 and RP 576 — but its Individual Certification Program does not examine relief system engineering as a discipline. Elements of it appear inside API 510 and API 570.
No. It covers what a test proves and how to read a test report, but it is not hands-on bench training and does not qualify anyone to overhaul a valve.
Roughly a third. That is deliberate — device-level work is the part most teams already do, and the header, backpressure and simultaneous-relief questions are the part that usually goes unasked.
Want the full outline?
Tell us your role and what you are trying to fix, and we will send the programme outline and what it would take to run it for your team.