Hydraulic bellows sluice valve

The invention discloses a í‹hydraulic bellows gate valveíŒ, first applies hydraulic transfer principle and provides a í‹bellows discíŒ, uses auxiliary hand-wheel driven oil cylinder as a hydraulic source, adopts step operation of main and auxiliary hand-wheel to control ON/OFF of the bellow disc to...

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Bibliographische Detailangaben
1. Verfasser:	LONGSHAN BAI
Format:	Patent
Sprache:	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:	The invention discloses a í‹hydraulic bellows gate valveíŒ, first applies hydraulic transfer principle and provides a í‹bellows discíŒ, uses auxiliary hand-wheel driven oil cylinder as a hydraulic source, adopts step operation of main and auxiliary hand-wheel to control ON/OFF of the bellow disc to make it have cutting action and easy to operate, where as turned-off, it can achieve the zero-leak standard. The invention radically improves the performance of a gate valve and largely prolongs service life; therefore it is an ideal practical new type gate valve.