Multi-motion fail-safe operating gate valve

A valve assembly includes a valve body and a valve member configured to translate between an open and a closed position. The valve assembly also includes a bonnet coupled to the valve body and a valve stem coupled to the valve member. The valve assembly also includes an actuator coupled to the bonne...

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Bibliographische Detailangaben
Hauptverfasser:	Choate, Jeremy, Cody, Paul, Mitelman, Guy, McEvoy, Travis Kyle, Adams, Keith M
Format:	Patent
Sprache:	eng
Schlagworte:	ACTUATING-FLOATS BLASTING COCKS DEVICES FOR VENTING OR AERATING EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING ENGINEERING ELEMENTS AND UNITS FIXED CONSTRUCTIONS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING LIGHTING MECHANICAL ENGINEERING MINING OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS TAPS THERMAL INSULATION IN GENERAL VALVES WEAPONS
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Beschreibung
Zusammenfassung:	A valve assembly includes a valve body and a valve member configured to translate between an open and a closed position. The valve assembly also includes a bonnet coupled to the valve body and a valve stem coupled to the valve member. The valve assembly also includes an actuator coupled to the bonnet. The actuator includes a first drive mechanism positioned to translate a first driving force to the valve stem, the first drive mechanism being in operation during a normal operating condition. The actuator also includes a second drive mechanism positioned to translate a second driving force to the valve stem, the second drive mechanism being in operation during a fail-safe operating condition.