A gate valve

The invention discloses a gate valve which includes a valve rod, a pressed flange, a bracket and a valve cover. The pressed flange, the bracket and the valve cover are locked together and fixed by the valve rod through a bolt structure. The gate valve also includes a sealing gasket and a first elast...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	HAN ANWEI, GAO WENJUAN
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 gate valve which includes a valve rod, a pressed flange, a bracket and a valve cover. The pressed flange, the bracket and the valve cover are locked together and fixed by the valve rod through a bolt structure. The gate valve also includes a sealing gasket and a first elastic part. The sealing gasket is arranged between the valve rod and the valve cover. The first elastic part is arranged between the sealing gasket and the valve cover and elastically seals the sealing gasket and the valve cover. The invention has a structure that the inner components of the gate valve are floatingly and elastically sealed by the elastic part. Even in the condition that the gate valve is wrongly manufactured and assembled, partial compensation can be realized and therefore the sealing state can be maintained for normal usage.