Valve trim apparatus having multiple fluid flow control members
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. The first flow control member is movable relative to the primary valve seat to control fluid flow between an inlet and an outlet of the fluid valve. A second flow control member is disposed within the cavity. The second flow control member is slidably coupled relative to the first flow control member. A secondary valve seat is coupled to the first flow control member. The second flow control member is to move relative to the secondary valve seat to throttle a fluid flow across the secondary valve seat.
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