NF EN 12284 : 2004
Current
The latest, up-to-date edition.
REFRIGERATING SYSTEMS AND HEAT PUMPS - VALVES - REQUIREMENTS, TESTING AND MARKING
12-01-2013
Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 List of Symbols
5 General Requirements
6 Materials
7 Design
8 Construction and workmanship
9 Testing
10 Marking and additional information
11 Documentation
Annex A (normative) Procedure for the design of a valve by use of
a simplified method of calculation
Annex B (normative) Experimental design method for valves
Annex C (normative) Determination of the allowable pressure at
the maximum operating temperature
Annex D (normative) Determination of the allowable pressure at
minimum operating temperature (Requirements to avoid
brittle fracture)
Annex E (informative) Compilation of material characteristics
of often used materials
Annex F (informative) Justification of the individual methods
Annex ZA (informative) Relationship between this European
Standard and the Essential Requirements of EU Directive
97/23/EC
Bibliography
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