ANTI-SURGE ACTUATOR

The present invention describes a valve actuator having a first motor (30) for moving a valve element and a second motor (30') for energizing a failsafe spring (130) . The second motor is operated independently from the first, thus allowing the valve element to be moved between its open and clo...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	WESSEL, JOERGEN, KASIN, TORSTEIN, STEN-HALVORSEN, VIDAR, JOHANSEN, JOHN, A
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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