Invention Grant
- Patent Title: Flexible seals for process control valves
- Patent Title (中): 过程控制阀的柔性密封
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Application No.: US14842281Application Date: 2015-09-01
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Publication No.: US09587747B2Publication Date: 2017-03-07
- Inventor: Wade Jonathon Helfer , David John Koester , Benjamin Uriah Good , Paul Russell Dalluge , Andrew John Olson
- Applicant: Fisher Controls International LLC
- Applicant Address: US IA Marshalltown
- Assignee: FISHER CONTROLS INTERNATIONAL LLC
- Current Assignee: FISHER CONTROLS INTERNATIONAL LLC
- Current Assignee Address: US IA Marshalltown
- Agency: Hanley, Flight & Zimmerman, LLC
- Main IPC: F16K1/22
- IPC: F16K1/22 ; F16K1/226

Abstract:
Flexible seals for process control valves are disclosed. An example disclosed seal includes a seal for use with a butterfly valve. The example seal includes a substantially flexible ring-shaped carrier configured to be moveably fixed within the butterfly valve and to surround a flow control aperture therein. The example seal includes a seal stiffener adjacent the substantially flexible ring-shaped carrier to increase the stiffness of the substantially flexible ring-shaped carrier in a first flow direction. The example seal includes a substantially rigid seal ring to engage an opposing surface.
Public/Granted literature
- US20150369371A1 FLEXIBLE SEALS FOR PROCESS CONTROL VALVES Public/Granted day:2015-12-24
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