High temperature and high pressure check valve

Abstract

The utility model relates to valve technical field discloses a high temperature and high pressure check valve, including check valve cavity, the inside fixed coupling of check valve cavity has check valve pipe body, the inside fixed coupling of check valve pipe body has coupling mechanism, the outside slide connection of check valve cavity has protection mechanism, the coupling mechanism includes auxiliary ring, the outside fixed coupling of auxiliary ring is in the inside of check valve pipe body, the outside fixed coupling of auxiliary ring has spring, the one end fixed coupling of spring away from auxiliary ring has fixed ring, the inside slide connection of fixed ring has fixed pipe, the outside fixed connection of protection mechanism has compact component. In the utility model, provide more reliable sealing performance under high temperature and high pressure working condition, effectively prevent medium leakage, guarantee device operation safety, secondly, the installation and dismounting process are simple and quick, shorten the maintenance time, reduce manpower cost.

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