Invention Grant
- Patent Title: Dual seal fire safe stem packing orientation
- Patent Title (中): 双密封防火安全杆包装方向
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Application No.: US14090026Application Date: 2013-11-26
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Publication No.: US09347585B2Publication Date: 2016-05-24
- Inventor: Andrew Browne Helvenston , Robert Kevin Law , Mark Anthony Viator , Keith Adams , Rolando Farinas
- Applicant: GE Oil & Gas Pressure Control LP
- Applicant Address: US TX Houston
- Assignee: GE Oil & Gas Pressure Control LP
- Current Assignee: GE Oil & Gas Pressure Control LP
- Current Assignee Address: US TX Houston
- Agency: Bracewell LLP
- Main IPC: F16K3/02
- IPC: F16K3/02 ; F16K41/04

Abstract:
A valve with a packing assembly includes a valve body assembly with a bore, a valve member moveable between an open position and a closed position, and a valve stem coupled to the valve member. A first stem packing circumscribes a portion of the valve stem, and is located in an upper bore portion of the bore. A first packing retainer has a collar that limits axial movement of the first stem packing, and also has a first retainer body defining an inner cavity. A second stem packing circumscribes a portion of the valve stem and is located in the inner cavity of the first packing retainer. A second packing retainer has a neck compressingly engaging the second stem packing, and a retainer shoulder that engages the first packing retainer. A retaining assembly is coupled with the valve body assembly for applying axial force to the second packing retainer.
Public/Granted literature
- US20150144823A1 DUAL SEAL FIRE SAFE STEM PACKING ORIENTATION Public/Granted day:2015-05-28
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