NEN EN 1074-1 : 2000
Current
The latest, up-to-date edition.
VALVES FOR WATER SUPPLY - FITNESS FOR PURPOSE REQUIREMENTS AND APPROPRIATE VERIFICATION TESTS - PART 1 - GENERAL REQUIREMENTS
01-12-2013
Foreword
Introduction
1 Scope
2 Normative references
3 Definitions
4 Design requirements
4.1 Materials
4.2 DN
4.3 Pressures
4.4 Temperatures
4.5 Design of the shell and obturator
4.6 End types and interchangeability
4.7 Operating direction
4.8 Maximum water velocity
4.9 All materials, including lubricants, in contact
with water intended for human consumption
4.10 Internal corrosion and ageing resistance
4.11 External corrosion and ageing resistance
5 Performance requirements
5.1 Mechanical strength
5.2 Leak-tightness
5.3 Hydraulic or airflow characteristics
5.4 Resistance to disinfection products
5.5 Endurance
6 Conformity assessment
6.1 General
6.2 Type tests
6.3 Control of production process and quality system
7 Marking
8 Packaging
Annex A (normative) Test method for the resistance to
internal pressure of the shell and of all
pressure containing components (see 5.1.1)
Annex B (normative) Test methods for the resistance of the
obturator to differential pressure (see
5.1.2)
Annex C (normative) Test method for the resistance of valves
to bending (see 5.1.3)
Annex D (normative) Minimal test method for the leak-
tightness to external pressure of the
shell and all pressure containing
components (see 5.2.1.2)
Annex E (normative) Test method for the resistance to
disinfection products (see 5.4)
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