Manual opening/closing valve

A manual opening/closing valve includes a manual handle, a valve element, a valve seat, an input port, and an output port. The manual opening/closing valve is arranged to move the valve element into contact with the valve seat when the manual handle is rotated, so that the valve is placed in a cutof...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser:	Aoyama Tatsuhito
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:	A manual opening/closing valve includes a manual handle, a valve element, a valve seat, an input port, and an output port. The manual opening/closing valve is arranged to move the valve element into contact with the valve seat when the manual handle is rotated, so that the valve is placed in a cutoff state in which communication between the input port and the output port is cut off, wherein the cutoff state includes a first cutoff state established when the manual handle is rotated to a first angle and a second cutoff state established when the manual handle is rotated to a second angle at which rotation operation force to the manual handle is converted to a cutoff load to be applied to the valve seat.