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Stuffing Box. A stuffing box is an assembly that contains a seal around a rotating shaft passing from a fluid-filled area to vapor filled area. Where is it used? Propeller on a boat Large centrifugal pumps Steam engine Et al. How it Works. Acts like a large scale compression fitting

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stuffing box
Stuffing Box
  • A stuffing box is an assembly that contains a seal around a rotating shaft passing from a fluid-filled area to vapor filled area.
  • Where is it used?
    • Propeller on a boat
    • Large centrifugal pumps
    • Steam engine
    • Et al.
how it works
How it Works
  • Acts like a large scale compression fitting
  • Stuffing is trapped behind a removable gland
  • Leaks a few drops per minute while the shaft is turning
  • 10 psi lubricant can be used if the process fluid is abrasive
operating conditions
Operating Conditions
  • Flax stuffing boxes are used to hold steam inside the cylinder of a steam engine
  • More extreme conditions would require more high-tech stuffing material
  • Oil field stuffing boxes can operate up to 540°F and 3,000 psi
materials of construction
Materials of Construction
  • Packing material
    • Greased flax, teflon(polytetrafluoroethylene), graphite
  • Rigid materials
    • Cast iron, brass, aluminum, or carbon steel
suppliers
Suppliers
  • Gould Pumps (pumps)

www.gouldpumps.com

  • Taco-HVAC (pumps)

www.taco-HVAC.com

  • Boat Designs (boat propeller passthrough)

www.boatdesigns.com

  • Harbison-Fischer (oil field)

www.hfpumps.com

  • Robbins & Myers (oil field)

www.rmenergy.com

works cited
Works Cited
  • Glen-L marine designs. (n.d.). Rudder Stuffing Box. Retrieved from boatdesigns.com: http://www.boatdesigns.com
  • Harbison-Fischer Mfg. Co. (n.d.). Harbison-Fischer Stuffing Boxes. Retrieved from hfpumps.com: http://www.hfpumps.com/catalog/harbison-fischer-stuffing-boxes
  • houtxfisher. (2010, January 3). How can I tell if my boat has a dripless stuffing box? Retrieved from The Hull Truth Boating Forum: http://www.thehulltruth.com/boating-forum/259765-how-can-i-tell-if-my-boat-has-dripless-stuffing-box.html
  • Robbins & Myers, Inc. (n.d.). Hercules Stuffing Boxes. Retrieved from rmenergy.com: http://www.rmenergy.com/ProductionSolutions/GeneralOilfield/GeneralOilfieldProducts/HerculesStuffingBoxes.aspx
  • Stuffing Box Packing - Goulds Pumps - ITT Corporation. (n.d.). (ITT Corporation) Retrieved from Goulds Pumps Industrial Products: http://www.gouldspumps.com/pag_0011.html
  • White, R. E. (1980, February 19). Patent No. 4,328,974. United States of America.
  • Wikimedia Corporation. (n.d.). Stuffing Box. Retrieved from Wikipedia: http://en.wikipedia.org/wiki/Stuffing_box