Redundant metal-to-metal seals for use with internal valves

Redundant metal-to-metal seals for use with internal valves

  • CN 102,388,247 A
  • Filed: 03/29/2010
  • Published: 03/21/2012
  • Est. Priority Date: 04/03/2009
  • Status: Active Grant
First Claim
Patent Images

1. valve plug, it has redundant sealing function, and is used for the carriage of internal valve, and said valve plug comprises:

  • Conical surface, it is in order to engage the valve seat of said carriage hermetically;

    AndSealing, its contiguous said conical surface also is arranged in the groove that is limited said valve plug, in order to engage said valve seat hermetically.

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