专利名称：BALL VALVE ASSEMBLY发明人：HAROLD STRATTON GARDNER申请号：AU74081申请日：19810813公开号：AU74081A公开日：19820722
摘要：A ball valve assembly for controlling the flow of abrasive particulates includingan enlarged section at the bore inlet and an enlarged section at the bore outlet. Arefractory ceramic annular deflector is positioned in each of the enlarged sections,substantially extending the useful life of the valve.
申请人：WESTINGHOUSE ELECTRIC CORP.
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