Invention Grant
- Patent Title: Shut-off trim including spring loaded check valve
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Application No.: US14157428Application Date: 2014-01-16
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Publication No.: US09328846B2Publication Date: 2016-05-03
- Inventor: Sina Alikhani
- Applicant: CONTROL COMPONENTS, INC.
- Applicant Address: US CA Rancho Santa Margarita
- Assignee: Control Components, Inc.
- Current Assignee: Control Components, Inc.
- Current Assignee Address: US CA Rancho Santa Margarita
- Agency: Stetina Brunda Garred & Brucker
- Main IPC: F16K3/26
- IPC: F16K3/26 ; F16K39/02

Abstract:
In accordance with the present invention, there is provided a bi-directional shut-off trim for a valve which possesses the functional attributes of a pilot operated trim and a balanced trim through the integration of a spring loaded check valve into a pilot trim. In forward flow isolation, the bi-directional shut-off trim of the present invention acts as a normal pilot operated trim. In reverse flow, the check valve of the shut-off trim opens to balance the pressure on either side of the plug thereof.
Public/Granted literature
- US20140174576A1 SHUT-OFF TRIM INCLUDING SPRING LOADED CHECK VALVE Public/Granted day:2014-06-26
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