99/707487 DC : DRAFT JUN 1999
Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
PREN 13547 - INDUSTRIAL VALVES - COPPER ALLOY BALL VALVES
01-03-2016
11-23-2012
Foreword
1 Scope
2 Normative references
3 Definitions
4 Requirements
4.1 Classification
4.2 Design
4.3 Functional characteristics
5 Test procedures
5.1 Production pressure testing
5.2 Seat leakage rates
6 Assessment of conformity
7 Designation
8 Marking
8.1 General
8.2 Body marking
8.3 Supplementary markings
9 Preparation for storage and transportation
9.1 Protection
9.2 Obturator position
9.3 Body ends
Annex A (normative) Materials
Annex B (normative) Pressure/temperature ratings
Annex C (normative) Determination of angular movement
of operating element - Method of test
Annex ZA (informative) Essential safety requirements
Clauses of this European
Standard addressing essential
requirements or other
provisions of EU directives
Bibliography
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