Field removable bonnet assemblies for use with valves

Field removable bonnet assemblies for use with valves

  • CN 105,972,308 A
  • Filed: 08/21/2009
  • Published: 09/28/2016
  • Est. Priority Date: 10/08/2008
  • Status: Active Application
First Claim
Patent Images

1. internal valve, including:

  • First body, it has external screw thread, for threadingly engaging another body with compression chamber, itsDescribed in the first body limit the second Room and supporting surface;

    Valve rod assembly, it has at least one biasing element, and wherein said valve rod assembly is at fluid streamPower is applied, to be promoted to described supporting surface by described fluid flow control member on dynamic control member;

    Valve plate, it is removably coupled to described first body, and described valve plate limits hole;

    AndThe bonnet assemblies of field removable, it is removably coupled to described first body by described valve platePortion and be fully seated at described second indoor, the bonnet assemblies of wherein said field removable includes;

    Second body, it limits vestibule;

    Axle, has cam pack, and it is for being rotatably engaged a part for described valve rod assembly,In order at least some of of described fluid flow control member is moved relative to described first body,Controlling the flowing of fluid between described compression chamber and described second Room, wherein said axle is by canIt is coupled to described second body and wherein said axle rotatably and is partly placed in described vestibuleIn;

    Valve packing, it is placed in the described vestibule of described second body, and around described axleTo provide bubble-tight sealing to stop described fluid to be flowed out by described bonnet assemblies;

    First packing ring, in it is placed in the described vestibule of described second body and be adjacent to describedFirst side of valve packing;

    Second packing ring, in it is placed in the described vestibule of described second body and be adjacent to describedSecond side of valve packing, described second side is relative with described first side;

    AndRemovable actuator, it is at least partially located at the described vestibule of described second bodyIn, to apply power, to promote against described axle towards described first packing ring or described second packing ringDescribed valve packing, and described removable actuator is by described in being limited by described valve plateHole from outside can and, to realize the described removable actuator tune relative to described second bodyJoint, is applied power on the shaft in order to increase by described valve packing, wherein said removableActuator be can on-the-spot remove to change or to keep in repair described valve packing.

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