I.S. EN 1555-4:2021
Current
The latest, up-to-date edition.
Plastics piping systems for the supply of gaseous fuels - Polyethylene (PE) - Part 4: Valves
Hardcopy , PDF
English
26-07-2021
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.
European foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
6 General characteristics
7 Geometrical characteristics
8 Mechanical characteristics of assembled valves
9 Physical characteristics
10 Performance requirements
11 Technical file
12 Marking
13 Delivery conditions
Annex A (normative) Determination of the leaktightness of seat(s) and packing
Annex B (normative) Test method for leaktightness and ease of operation after tensile loading 25
Bibliography
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