Floating ball valve with elastic double-seal valve seat

The floating ball valve comprises a valve body, a valve rod, a handle, valve covers, a valve ball and the valve seat, the valve covers are installed on the left side and the right side of the valve body, counter bores are formed in the sides, facing the valve ball, of the valve covers, and the valve...

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Bibliographische Detailangaben
Hauptverfasser:	YANG HAN, CHEN FAN'E, PENG YANGANG, LUO YINYIN, JIN ANTAO
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 floating ball valve comprises a valve body, a valve rod, a handle, valve covers, a valve ball and the valve seat, the valve covers are installed on the left side and the right side of the valve body, counter bores are formed in the sides, facing the valve ball, of the valve covers, and the valve seat is installed in the counter bores of the valve covers and matched with the valve ball in a sealing mode. The handle rotates to drive the valve rod to drive the valve ball to rotate to open and close the ball valve; the valve seat comprises an outer sealing ring, an inner sealing ring and a sealing ring seat, the inner sealing ring is embedded in the outer sealing ring, the outer sealing ring is in sliding sealing fit with the hole wall of the counter bore of the valve cover, and spherical surfaces matched with the valve ball are arranged on the sides, facing the valve ball, of the outer sealing ring and the inner sealing ring. The sealing ring seat is attached to an inner hole of the inner sealing ring and th