EN 12266
Inspection & Test Plan

EN 12266 Inspection & Test Plan (ITP)

A typical stage-wise ITP / quality plan for valves supplied to EN 12266 — 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 EN 12266 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 EN 12266 (Industrial Valves - Testing of Metallic Valves (Parts 1 and 2)); the tests and documents are drawn directly from the standard's requirements. Use it to structure your QAP or coordinate third-party inspection.

Inspection level:ReviewWitnessHold

1. Documentation & design review

Review
  • Approval of drawings, datasheets and QAP against EN 12266
  • Shell test (Part 1, Clause 5.1): 1.5× PS (maximum allowable pressure) at 20°C; acceptance criterion: Rate A (no visible leakage)
  • Seat test (Part 1, Clause 5.2): 1.1× PS; acceptance criterion: Rate A (zero) for tight-shutoff or Rate D for standard 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 EN 12266 / 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
  • EN 12266-1 shell and seat test with documented FAT report
  • CE marking attestation if PED-relevant

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
  • EN 12266 Factory Acceptance Test certificate
  • Declaration of Conformity (DoC) for PED compliance

Final documentation review before release/dispatch.

This is a typical ITP framework populated from EN 12266 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.

Reviewed by Valve Standards Engineering, Vajra Industrial SolutionsDiscipline: Industrial Valve Standards & ComplianceLast reviewed: 20 June 2026

Need EN 12266 valves with a full ITP?

We supply EN 12266-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.

Engineering references