Unloading valve with long service life

The utility model discloses an unloading valve with long service life, which comprises an unloading valve carrier, an unloading valve groove is arranged in the unloading valve carrier, a conical valve seat and a lower seat are arranged in the unloading valve groove from bottom to top, a valve core h...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser:	QIN GUOYU
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 an unloading valve with long service life, which comprises an unloading valve carrier, an unloading valve groove is arranged in the unloading valve carrier, a conical valve seat and a lower seat are arranged in the unloading valve groove from bottom to top, a valve core head is fixedly arranged in the conical valve seat, a valve core is fixedly connected with the inner wall of the valve core head, and the lower seat is fixedly connected with the valve core. A valve core is arranged on the lower seat, a valve body is arranged above the valve core, the outer wall of the valve body is connected with a valve cover, at least one valve body O-shaped ring is fixedly arranged on the inner wall of the valve body, and at least one lower seat O-shaped ring is fixedly arranged on the inner wall of the lower seat. According to the utility model, the O-shaped ring is fixedly arranged on the inner walls of the valve body and the lower seat, so that the O-shaped ring on the valve core is changed i