1 Scope
This European standard applies primarily to copper alloy ball valves, dimensions DN 8 to DN 100, for potable water supply in buildings up to PN 10 and
a distribution temperature of 65 °C. Occasional excursions up to 90 °C are permitted
for a period of 1 h maximum.
This standard applies also to ball valves in combination with other components in the same body.
This standard specifies:
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— the requirements of the materials and the design of ball valves;
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— the mechanical, hydraulic and acoustic requirements of ball valves;
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— the test methods to verify the requirements of ball valves;
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— the marking requirements of ball valves.
Ball valves in combination with other valves should fulfil the same requirements.