Flexible metal sealing lip

A low pressure backseat sealing apparatus having a flexible sealing lip which contacts the backseat prior to contact between a stem shoulder and the backseat, with the stem shoulder positioned above the flexible lip, thereby limiting stem movement while allowing internal valve pressure to achieve a...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	BANE DARREN E, DAVIS JEFFREY E, JACKSON AARON T, THOMPSON GRANT R, BEALL CLIFFORD H
Format:	Patent
Sprache:	eng
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:	A low pressure backseat sealing apparatus having a flexible sealing lip which contacts the backseat prior to contact between a stem shoulder and the backseat, with the stem shoulder positioned above the flexible lip, thereby limiting stem movement while allowing internal valve pressure to achieve a seal between the flexible lip and the bonnet.