API 607 Inspection & Test Plan (ITP)
A typical stage-wise ITP / quality plan for valves supplied to API 607 — inspection activities, tests, acceptance references and verifying documents, with recommended hold, witness and review points for QC and third-party inspection.
What is the ITP for API 607 valves?
An Inspection & Test Plan (ITP) sequences every check between raw material and dispatch, and assigns each an inspection level — Review (document check), Witness (inspector may attend), or Hold (work stops until released). The plan below is a typical ITP for valves built to API 607 (Fire Test for Quarter-Turn Valves and Valves Equipped with Nonmetallic Seats); the tests and documents are drawn directly from the standard's requirements. Use it to structure your QAP or coordinate third-party inspection.
1. Documentation & design review
Review- Approval of drawings, datasheets and QAP against API 607
- Valve must limit leakage during fire exposure to ≤200 mL/min through seat and ≤50 mL/min through stem seal
- Fire exposure test: 750°C to 1100°C for 30 minutes, then 3 minutes water spray quench
2. Raw material verification
Review- Material Test Reports (MTRs) review per EN 10204 3.1/3.2
- Positive Material Identification (PMI) of pressure-containing parts
3. Dimensional inspection
Witness- Dimensional check per API 607 / ASME B16.34 / applicable face-to-face
- Wall thickness verification
4. NDE (as applicable)
Witness- Visual, and RT/UT/MPI/DPT of castings/welds per specification
5. Pressure & performance testing
Hold- Fire test per API 607: 750–1100°C for 30 minutes
- Post-fire leakage test: seats ≤200 mL/min, stem ≤50 mL/min
- Post-fire operational test: full open/close cycle
- Certificate of qualification (CoQ) from accredited test facility
Primary hold point — witnessed shell, seat and backseat tests.
6. Fire-type test (qualification)
Hold- Fire test per API 607 / API 6FA with post-fire leakage acceptance
7. Marking, painting & preservation
Review- Nameplate & body marking verification
- Painting/coating DFT check, end protection and preservation
8. Final documentation
Hold- API 607 fire test certificate (per model and size range)
- Test facility certification
- Valve production test certificates
- Anti-static device certificate
Final documentation review before release/dispatch.
This is a typical ITP framework populated from API 607 requirements, for reference. The actual hold/witness/review split is agreed per project between purchaser, manufacturer and the third-party inspection agency in the approved QAP. Confirm project-specific requirements before use.
Connected Engineering
Need API 607 valves with a full ITP?
We supply API 607-compliant valves with a project-specific ITP, in-house QC and third-party inspection (SGS, BV, TUV, DNV) coordination — hold and witness points accommodated. Get a 24-hour quote.