Valve trim apparatus having multiple fluid flow control members
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United States of America Patent
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Jun 23, 2020
Grant Date -
Nov 10, 2016
app pub date -
May 6, 2015
filing date -
May 6, 2015
priority date (Note) -
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Abstract
Valve trim apparatus having multiple fluid flow control members are disclosed herein. An example valve trim apparatus includes a primary valve seat and a first flow control member having a cavity and a first seating surface, where the first flow control member is movable relative to the primary valve seat. A second flow control member is disposed within the cavity and slidably coupled relative to the first flow control member. A secondary valve seat is coupled to the first flow control member and the second flow control member moves relative to the secondary valve seat to throttle a fluid flow across the secondary valve seat.
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