I.S. EN 558:2022
Current
The latest, up-to-date edition.
Industrial valves - Face-to-face and centreto- face dimensions of metal valves for use in flanged pipe systems - PN and Class designated valves
Hardcopy , PDF
English
13-03-2022
For Harmonized Standards, check the EU site to confirm that the Standard is cited in the Official Journal.
Only cited Standards give presumption of conformance to New Approach Directives/Regulations.
European foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Dimensions and tolerances
Annex A (informative) Origin of basic series
Annex B (informative) Relationship between DN and NPS
Annex C (informative) Overview of special basic series (compared to the previous version)
Bibliography
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