Valve packing apparatus and related methods
AssigneeFisher Controls International LLC
InventorsLucas Schmitt, Steven Hostetter, Aaron Anderson, Lisa Miller
Life of this patent
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Abstract
Methods, apparatus, systems, and articles of manufacture of valve packing apparatus and related methods. An apparatus includes a cartridge including packing components and a spring. The cartridge is dimensioned to fit in a bore of a bonnet of a valve. A retainer is disposed in an aperture of the cartridge. The retainer is removable from the aperture to release the spring to apply a predetermined compressive load to the stack of packing components.
Claims20
An apparatus to install a valve packing comprising:
- a cartridge having a first end and a second end, the first end dimensioned to fit in a bore of a bonnet of a valve, the cartridge including:
- packing components;
- a flange to couple the cartridge to the bonnet;
- an aperture disposed between the second end of the cartridge and the flange;
- and
- a spring;
- and
- a retainer disposed in the aperture of the cartridge to prevent the spring from applying a compressive load to the packing components, the retainer, when removed from the aperture, to release the spring to apply a predetermined compressive load to the packing components.
An apparatus to install a valve packing, comprising:
- a cylindrical tube having a first end and a second end, the cylindrical tube having an outer surface dimensioned to fit within a bore of a valve;
- a biasing member disposed within the cylindrical tube at the first end of the cylindrical tube;
- packing components disposed within the cylindrical tube adjacent the biasing member;
- and
- a retainer to hold the biasing member in a compressed state to prevent the biasing member from contacting the packing components, wherein the retainer is to be moved to enable the biasing member to apply a load to the packing components after the cylindrical tube has been inserted into the bore of the valve.
An apparatus to install a valve packing comprising:
- a cartridge to be disposed within a bore of a bonnet of a valve, the cartridge including a first end and a second end, the cartridge including:
- means for applying a predetermined compressive load to packing disposed at the first end;
- and
- means for sealing a valve stem;
- and
- first means for retaining the means for applying the predetermined compressive load in a compressed state to prevent the means for applying the predetermined compressive load from contacting the means for sealing, the first means for retaining to be removed from the cartridge to enable the means for applying the predetermined compressive load to apply a load to the means for sealing after the cartridge has been coupled to the bore of the valve.
Dependencies are inferred from the claim text.