Pressure insensitive valve

A pressure insensitive, fail-safe subsea valve is disclosed. The valve is manipulator operable for deep water application and does not require conventional diving techniques to install, maintain or remove. The valve is pressure balanced by employing a hollow valve stem which equalizes the pressure o...

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Bibliographische Detailangaben
Hauptverfasser:	BARRINGTON, CLAUD C
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 pressure insensitive, fail-safe subsea valve is disclosed. The valve is manipulator operable for deep water application and does not require conventional diving techniques to install, maintain or remove. The valve is pressure balanced by employing a hollow valve stem which equalizes the pressure on both ends of the stem.