VALVE STEM HAVING CONDITIONED LUBRICATING SURFACES

Movable valve apparatus (306) having conditioned lubricating surfaces (332) are described. As example valve includes a valve packing (308) having a graphite packing ring (314) disposed within a bonnet (304) of the fluid valve and a stem or shaft (302) as a conditioned surface to hold a lubricating m...

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Bibliographische Detailangaben
Hauptverfasser:	LINSER, MARK, JOHN, HUTCHENS, WILBUR, DEAN
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ACTUATING-FLOATS BLASTING COCKS CYLINDERS DEVICES FOR VENTING OR AERATING ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING LIGHTING MECHANICAL ENGINEERING PISTONS SEALINGS TAPS THERMAL INSULATION IN GENERAL VALVES WEAPONS
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Beschreibung
Zusammenfassung:	Movable valve apparatus (306) having conditioned lubricating surfaces (332) are described. As example valve includes a valve packing (308) having a graphite packing ring (314) disposed within a bonnet (304) of the fluid valve and a stem or shaft (302) as a conditioned surface to hold a lubricating material. The conditioned surface of the stem or shaft is disposed within the bonnet and moves the lubricating material relative to and in contact with the graphite packing ring during operation of the fluid valve.