FLEXIBLE SEATING STRUCTURE FOR ROTARY VALVES

IMPROVED FLEXIBLE SEATING STRUCTURE FOR ROTARY VALVES A flexible seating apparatus is disclosed for use in rotary valves comprising a flexible seat ring attached to one of the valve body and valve closure member in a cantilevered fashion and maintained against the other of the valve body and valve c...

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Bibliographische Detailangaben
1. Verfasser:	KURKJIAN, GREGORY A., JR
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	ACTUATING-FLOATS BLASTING COCKS DEVICES FOR VENTING OR AERATING ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING LIGHTING MECHANICAL ENGINEERING TAPS THERMAL INSULATION IN GENERAL VALVES WEAPONS
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Beschreibung
Zusammenfassung:	IMPROVED FLEXIBLE SEATING STRUCTURE FOR ROTARY VALVES A flexible seating apparatus is disclosed for use in rotary valves comprising a flexible seat ring attached to one of the valve body and valve closure member in a cantilevered fashion and maintained against the other of the valve body and valve closure member by pressurized fluid forces during closure. A resilient seal member is positioned between the flexible seating ring and that one of the valve body and valve closure member to which it is attached. Slotted fastener holes spaced radially along the flexible seat and corresponding fasteners permit automatic axial adjustment and proper positioning of the flexible seat ring upon assembly and initial closure of the valve's closure member. An alternate embodiment is disclosed in which the flexible seat ring is mounted to the other of the valve body and the valve closure member. The present flexible seating apparatus can be used with rotary ball valves and butterfly valves, for example, and further, is advantageously used to permit droptight metal-to-metal valve seating.