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Standards Development
This document applies primarily to copper alloy and stainless steel ball valves with dimensions DN 6 to DN 100, for installations in buildings for potable water supply up to PN16 and a maximum distribution temperature of 65 °C. Occasional excursions up to 90 °C are permitted for a period of 1 h maximum.
The ball valves are classified by their nominal pressure being either PN10 or PN16.
This document specifies:
— the requirements of the materials and the design of ball valves;
— the mechanical, hydraulic and acoustic requirements of ball valves;
— the test methods to verify the requirements of ball valves;
— the marking requirements of ball valves.
Several Mistakes were raised and should lead to a new revision of the standard:
Table 10: the conversion from MPa to bar is incorrect.
Salt/corrosion: the test cannot be properly applied.
Stop resistance, 6.7.3 b) 1): reference to Table 6 results in excessively high values.
Incorrect test references in the outline: Table 5 refers to clause 6.12 instead of 6.1 (refer to Carsten
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