Balanced differential pressure type safety valve

The utility model discloses a balance differential pressure type safety valve which comprises a valve cover, a valve body, a valve clack, a valve seat, a spring and a valve rod, the valve cover is installed on the valve body, the valve seat is installed on the valve body, the valve clack is connecte...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: KIM SOO-ROCK, JIN YIFENG, LIU WENHAO, ZHANG JUNCE, CHEN YUNJIE, YU XIUKE
Format: Patent
Sprache:chi ; eng
Schlagworte:
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Beschreibung
Zusammenfassung:The utility model discloses a balance differential pressure type safety valve which comprises a valve cover, a valve body, a valve clack, a valve seat, a spring and a valve rod, the valve cover is installed on the valve body, the valve seat is installed on the valve body, the valve clack is connected with the valve rod and is installed with the valve seat in a sealing fit mode, the spring is arranged on the valve rod in a sleeved mode, and a guide sleeve is arranged on the valve rod. A positioning part is installed between the guide sleeve and the valve rod, a through hole for the valve rod to penetrate through is formed in the positioning part, a plurality of sealing grooves are formed in the guide sleeve, elastic sealing pieces are arranged in the sealing grooves, and the elastic sealing pieces are embedded in the sealing grooves and are matched with the guide sleeve in an abutting mode. A guide positioning structure can be arranged between the valve rod and the guide sleeve, the guide area of the valve rod