Valve components, Ball cocks, Valves, Water valves, Copper alloys, Copper, Size, Designations, Dimensions, Joints, Marking, Valve bodies, Bosses, Weight (mass), Spherical shape
Class A. Soldered joints; Class B. Solderless joints; Class C. Brazed, welded or silver soldered joints. Manufacture, methods of jointing, dimensions for bosses; tests, marking requirements, dimensions for floats. See BS 1212. ; Describes requirements for a range of spherical copper floats 4 and a half, to 12 inches nominal diameter for attachment to ballvalves specified in BS 1212 and to ballvalves the leverage for the same bore of seat is not less than that specified in BS 1212, in the following, floats of all sizes with soldered joints, all sizes with solderless joints and all sizes with brazed, welded or silver-soldered joints. Performance requirements relating to floats of a shape other than spherical are also included.
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