GATE VALVE

According to the present invention, a gate valve comprises a valve box, a valve main body, a rotational shaft, a rotational shaft driving unit, a driving valve unit, a valve box tensioning unit, a hydraulic pressure driving unit, a first connection unit, and a second connection unit. The first conne...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: INOUE HIDEAKI, WADA SHINICHI, SUZUKI MIKIYA, TSURU SHUNSUKE, TERUI TAKAAKI, ISHIDA TOMOYA, WADE TAKUYA, SAKODA SEIYA, ENDO JIROU
Format: Patent
Sprache:eng ; kor
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Beschreibung
Zusammenfassung:According to the present invention, a gate valve comprises a valve box, a valve main body, a rotational shaft, a rotational shaft driving unit, a driving valve unit, a valve box tensioning unit, a hydraulic pressure driving unit, a first connection unit, and a second connection unit. The first connection unit comprises: a plurality of connection members installed along a circumference of a first opening; and an inner seal area and an outer seal area installed along the circumference of the first opening to seal a surface of a first chamber and a surface of the valve box at both side positions of the connection member in a radial direction of the first opening. 본 발명의 게이트 밸브는, 밸브박스와, 밸브 본체와, 회전축과, 회전축 구동부와, 가동 밸브부와, 밸브박스 부세부와, 유압 구동부와, 제1 접속부와, 제2 접속부를 가진다. 상기 제1 접속부는, 제1 개구부의 주위를 따라 설치된 복수의 접속 부재와, 상기 제1 개구부의 지름 방향으로 상기 접속 부재의 양측 위치에서 또한 상기 제1 개구부의 주위를 따라 설치되어 상기 밸브박스의 표면과 제1 챔버의 표면을 씰(seal) 가능한 내측 씰영역과 외측 씰영역을 가진다.