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VALVES FOR WATER SUPPLY - FITNESS FOR PURPOSE REQUIREMENTS AND APPROPRIATE VERIFICATION TESTS - PART 1: GENERAL REQUIREMENTS
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Available format(s): Hardcopy, PDF
Language(s): English
Published date: 01-01-2000
Publisher: National Standards Authority of Ireland
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.
ForewordIntroduction1 Scope2 Normative references3 Definitions4 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 resistance5 Performance requirements 5.1 Mechanical strength 5.2 Leak-tightness 5.3 Hydraulic or airflow characteristics 5.4 Resistance to disinfection products 5.5 Endurance6 Conformity assessment 6.1 General 6.2 Type tests 6.3 Control of production process and quality system7 Marking8 PackagingAnnex A (normative) Test method for the resistance to internal pressure of the shell and of all pressure containing components Annex B (normative) Test methods for the resistance of the obturator to differential pressure Annex C (normative) Test method for the resistance of valves to bending Annex D (normative) Minimal test method for the leak- tightness to external pressure of the shell and all pressure containing components Annex E (normative) Test method for the resistance to disinfection products
Specifies the minimum fitness for purpose requirements for valves to be used in, or connected to, water supply pipe systems, above or below ground, carrying water intended for human consumption.
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