ENA TS 56-1 : ISSUE 2 1989
Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
FERRITIC STEEL VALVE CASTING
23-07-2013
12-01-2013
Determines aspects of manufacture, and the inspection and repair welding procedures for ferritic steel valve body and bonnet castings. It does not cover the requirements for discs or other internal fittings.
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