NEN EN ISO 4126-7 : 2013 AMD 1 2016
Current
The latest, up-to-date edition.
SAFETY DEVICES FOR PROTECTION AGAINST EXCESSIVE PRESSURE - PART 7: COMMON DATA
01-12-2013
1 Scope
2 Normative references
3 Non-European material groups and material temperature
limitations
4 Minimum requirements for helical compression springs
4.1 General
4.2 Materials
4.3 Marking
4.4 Dimensions
4.5 Spring plates/buttons
4.6 Inspection, testing and tolerances
5 Minimum requirements for safety valve disc springs
5.1 General
5.2 Materials
5.3 Marking
5.4 Dimensions
5.5 Inspection, testing and tolerances
Annex A (informative) Basis of Table 1
Annex B (informative) Material groups
Bibliography
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