Check valve with improved response time

Check valve with improved response time

  • CN 105,190,140 A
  • Filed: 03/11/2014
  • Published: 12/23/2015
  • Est. Priority Date: 03/15/2013
  • Status: Active Application
First Claim
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1. a safety check, it comprises valve member, described valve member can move to allow fluid to flow in one direction between seated position and open position, wherein said valve member is dish type and comprises to have the core of the roughly convex curvature extended on described fluid flow direction and the guide portion around described core, and the weight area ratio that described guide portion has is less than the weight area ratio of described core.

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