Flow cut-off self-closing valve

The utility model relates to a flow cut-off self-closing valve, which comprises a casing body, a valve seat, a valve, a control shaft and a control handle. The utility model is additionally provided with a float chamber, a float, a lock hook, a spring, etc. The valve is locked when floatage is gener...

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Bibliographische Detailangaben
1. Verfasser:	NEI LEI
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 utility model relates to a flow cut-off self-closing valve, which comprises a casing body, a valve seat, a valve, a control shaft and a control handle. The utility model is additionally provided with a float chamber, a float, a lock hook, a spring, etc. The valve is locked when floatage is generated by liquid because of the different specific gravity of the liquid and the float. The valve is unlocked when the floatage disappears because of cutoff. The functions of cutoff and self closing are added to the utility model based on the original function of passive opening and closing of manually-operated valves in fluid pipes. The utility model has the advantages of reliable principle, simple structure, etc.