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NS EN 13828 : 1ED 2003
Current
The latest, up-to-date edition.
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BUILDING VALVES - MANUALLY OPERATED COPPER ALLOY AND STAINLESS STEEL BALL VALVES FOR POTABLE WATER SUPPLY IN BUILDINGS - TESTS AND REQUIREMENTS
12-01-2013
Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Designation
5 Design requirements
5.1 Materials
5.1.1 Body and ball materials
5.2 End connections
5.3 Operation
5.3.1 Operating devices
5.4 Stops
5.5 Ball bore
5.5.1 Full bore
5.5.2 Reduced bore
6 Performance requirements
6.1 Operating torque
6.2 Stop resistance
6.3 Leak-tightness
6.4 Angular seal
7 Test methods
7.1 Operating torque test
7.2 Torque and bending test
7.2.1 General
7.2.2 Sequence of torsion and bending moments tests for valves
7.3 Stops and spindle - Mechanical resistance test
7.4 Hydraulic tests
7.4.1 Leak-tightness test
7.4.2 Hydraulic strength
7.5 Acoustic tests and requirements
7.5.1 Principle
7.5.2 Test
7.5.3 Requirements
7.6 Endurance test
7.6.1 Endurance test
7.6.2 Test installation
7.6.3 Test
7.7 Angular seal
8 Marking
Bibliography
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