GATE VALVE

The present invention relates to a gate valve. The gate valve comprises a valve case, a valve main body, a rotational shaft, a rotational shaft driving unit, a driving valve unit, a valve case force applying unit, a hydraulic pressure driving unit, a hydraulic pressure generating unit, a driving uni...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	INOUE HIDEAKI, WADA SHINICHI, SUZUKI MIKIYA, TSURU SHUNSUKE, TERUI TAKAAKI, ISHIDA TOMOYA, TOKUHIRA SHINNOSUKE, WADE TAKUYA, SAKODA SEIYA, ENDO JIROU
Format:	Patent
Sprache:	eng ; kor
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:	The present invention relates to a gate valve. The gate valve comprises a valve case, a valve main body, a rotational shaft, a rotational shaft driving unit, a driving valve unit, a valve case force applying unit, a hydraulic pressure driving unit, a hydraulic pressure generating unit, a driving unit, a power source, a first non-excitation operation brake, a second non-excitation operation brake, and a brake operation releasing unit releasing operation of the first and second non-excitation operation brakes. 본 발명의 게이트 밸브는, 밸브 케이스와, 밸브 본체와, 회전축과, 회전축 구동부와, 가동 밸브부와, 밸브 케이스 부세부와, 유압 구동부와, 유압 발생부와, 구동부와, 전원과, 제1 무여자 작동 브레이크와, 제2 무여자 작동 브레이크와, 상기 제1 무여자 작동 브레이크 및 상기 제2 무여자 작동 브레이크의 작동을 해제하는 브레이크 동작 해제부를 구비한다.