I.S. EN 1074-2:2000
Current
The latest, up-to-date edition.
VALVES FOR WATER SUPPLY - FITNESS FOR PURPOSE REQUIREMENTS AND APPROPRIATE VERIFICATION TESTS - PART 2 - ISOLATING VALVES
Hardcopy , PDF
English
01-01-2000
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.
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Foreword
Introduction
1 Scope
2 Normative references
3 Definitions
4 Design requirements
5 Performance requirements
5.1 Mechanical strength
5.1.1 Resistance to internal pressure of the
shell and of all pressure containing
components
5.1.2 Resistance of the obturator to
differential pressure
5.1.3 Resistance to the valve to bending
5.1.4 Resistance of valves to operating loads
5.2 Leak-tightness
5.2.1 Leak-tightness of the shell and of all
pressure containing components
5.2.2 Seat tightness
5.2.3 Maximum operating torque (MOT) for
operation and leak-tightness
5.2.4 Leak-tightness of gearboxes to external
pressure
5.3 Hydraulic 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 of valves
to operating loads (see 5.1.4)
Annex B (normative) Torque requirements for gate valves to be
operated by ring key and bar (see 5.2.3 and Annex A)
Annex C (normative) Test method for the operation of valves
(see 5.2.3)
Annex D (normative) Test method for the endurance of valves
(see 5.5)
Defines the minimum fitness for purpose requirements for isolating valves to be connected to, or used in water supply systems, either above or below ground, carrying water for human consumption.
| DocumentType |
Standard
|
| Pages |
22
|
| PublisherName |
National Standards Authority of Ireland
|
| Status |
Current
|
| Standards | Relationship |
| BS EN 1074-2:2000 | Identical |
| DIN EN 1074-2:2004-07 | Identical |
| UNE-EN 1074-2:2001 | Identical |
| UNI EN 1074-2 : 2004 | Identical |
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