NBN EN 60534-4 : 2007
Current
The latest, up-to-date edition.
INDUSTRIAL-PROCESS CONTROL VALVES - PART 4: INSPECTION AND ROUTINE TESTING
12-01-2013
1 Scope
2 Normative references
3 Terms and definitions
4 Requirements
4.1 Hydrostatic test
4.2 Seat leakage test
4.3 Packing test
4.4 Rated valve travel test
4.5 Dead band tests
4.6 Additional tests
5 Tests procedures
5.1 Measuring instruments
5.2 Test medium
5.3 Test fixtures
5.4 Hydrostatic test
5.5 Seat leak test
5.6 Packing test
5.7 Rated valve travel test
5.8 Dead band tests
Annex A (informative) Example calculations of seat leakage
Annex B (informative) Inspection and routine testing
checklist (per IEC 60534-4)
Annex ZA (normative) Normative references to international
publications with their corresponding
European publications
Figure
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