Plug cut-off valve

The utility model relates to a plunger cut-off valve which comprises a valve body, a valve cover, a valve rod, a plunger, a machine frame and a hand wheel, wherein the upper part of the valve cover is connected with the machine frame and the lower part is connected with the valve body. The plunger i...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser:	BIGUANG JIANG
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 plunger cut-off valve which comprises a valve body, a valve cover, a valve rod, a plunger, a machine frame and a hand wheel, wherein the upper part of the valve cover is connected with the machine frame and the lower part is connected with the valve body. The plunger in the valve body is in sleeve joint with the valve rod, and the upper end of the valve rod is connected with the hand wheel. The utility model is characterized in that the machine frame has graduation, and a position block is fixed on the valve rod and matched with the graduation. The utility model overcomes the defect that the common plunger cut-off valve can not accurately control the fluid flow, and has the advantages of simple structure, accurate flow control, convenient operation and long service life.