Gate valve

This gate valve is provided with a valve housing, a valve body, a rotating shaft, a rotating shaft drive unit, a movable valve unit, a valve housing urging unit, a hydraulic drive unit, a first connection unit, and a second connection unit. The first connection portion has: a plurality of connection...

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Bibliographische Detailangaben
Hauptverfasser:	SAKODA, SEIYA, SUZUKI, MIKIYA, WADA, SHINICHI, ISHIDA, TOMOYA, TERUI, TAKAAKI, ENDO, JIROU, TSURU, SHUNSUKE, INOUE, HIDEAKI, WADE, TAKUYA
Format:	Patent
Sprache:	chi ; 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:	This gate valve is provided with a valve housing, a valve body, a rotating shaft, a rotating shaft drive unit, a movable valve unit, a valve housing urging unit, a hydraulic drive unit, a first connection unit, and a second connection unit. The first connection portion has: a plurality of connection members provided along the periphery of the first opening portion; and an inner sealing region and an outer sealing region which are provided along the periphery of the first opening portion at positions on both sides of the connecting member in the radial direction of the first opening portion and can seal the surface of the valve box and the surface of the first chamber.