I.S. EN ISO 27509:2020
Current
The latest, up-to-date edition.
Petroleum and natural gas industries - Compact flanged connections with IX seal ring (ISO 27509:2020)
Hardcopy , PDF
English
03-01-2021
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.
Dates of withdrawal of national standards are available from NSAI.
Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Abbreviations and symbols
5 Design
6 Designation
7 Materials
8 Strength, pressure/temperature ratings and leak tightness
9 Dimensions of flanges
10 Marking of flanges
11 Dimensions of seal rings
12 Manufacture, testing and inspection of IX seal rings
13 Coating and colour coding
14 Marking of seal rings
15 Quality management systems
16 Bolt dimensions and masses
Annex A (normative) Pressure temperature ratings and load capacity
Annex B (normative) Integral flange angle selection
Annex C (normative) Bolt dimensions and masses
Annex D (normative) Handling, installation, assembly and repair of flanges
Annex E (informative) Mass of flanges
Annex F (informative) Metric bolting
Annex G (informative) Additional information on bibliographical references
Bibliography.
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