NORSOK M-630 Inspection & Test Plan (ITP)
A typical stage-wise ITP / quality plan for valves supplied to NORSOK M-630 — 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 NORSOK M-630 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 NORSOK M-630 (Material Data Sheets and Element Requirements for Piping); 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 NORSOK M-630
- Material Data Sheet (MDS) reference must be specified for each piping component
- Carbon steel valves: NORSOK M-630 MDS C01/C02 - Charpy impact test required at −46°C for sweet service
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 NORSOK M-630 / 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- Charpy impact testing at −46°C (or lower for Arctic service) per MDS requirements
- Corrosion testing per applicable MDS (ASTM A262, ASTM G48, or ASTM A923)
- Ferrite content measurement for duplex/super-duplex stainless valves
- Pitting resistance equivalent number (PREN) verification for stainless alloys
Primary hold point — witnessed shell, seat and backseat tests.
6. Marking, painting & preservation
Review- Nameplate & body marking verification
- Painting/coating DFT check, end protection and preservation
7. Final documentation
Hold- Material Data Sheet (MDS) reference declared on documentation package
- Material Test Report (MTR) EN 10204 3.1 with heat/cast number and chemical analysis
- Charpy impact test results
- Corrosion/ferrite test reports as applicable to MDS
- NACE MR0175 compliance certificate where H₂S service is present
Final documentation review before release/dispatch.
This is a typical ITP framework populated from NORSOK M-630 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.
Need NORSOK M-630 valves with a full ITP?
We supply NORSOK M-630-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.