Sealing ball valve

The utility model discloses a sealing ball valve. The sealing ball valve comprises a valve body, the valve cover is arranged on one side of the valve body; the valve ball is arranged in the valve body; the valve seat is arranged between the valve ball and the valve cover; a graphite sealing ring and...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	FENG YIQIANG, TAN JINGHAN, HUANG HANMIN, WEN YAOXIN, ZHENG BINGCAN, WANG WENHUA, CHEN KANXIA, QIAO YUFENG, WU MINSHAN, ZHOU ZHIWEI
Format:	Patent
Sprache:	chi ; 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 discloses a sealing ball valve. The sealing ball valve comprises a valve body, the valve cover is arranged on one side of the valve body; the valve ball is arranged in the valve body; the valve seat is arranged between the valve ball and the valve cover; a graphite sealing ring and a pressing ring are arranged between the valve seat and the valve cover; the pressing ring is arranged below the graphite sealing ring; a disc spring is arranged between the pressing ring and the valve cover; a flaring of the disc spring is arranged downwards; the upper end of the disc spring abutsagainst the pressing ring, the lower end of the disc spring abuts against the valve deck, a bearing part corresponding to the disc spring is arranged in the valve deck, a limiting protruding part corresponding to the lower end of the disc spring is arranged on the bearing part, an inclined guide face corresponding to the lower side of the disc spring is arranged on the bearing part, and a dredging channel is formed in th