stuffing box

An enclosure containing packing to prevent leakage around a moving machine part.

American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

stuffing box

(Mechanical Engineering) a small chamber in which an annular packing is compressed around a reciprocating or rotating rod or shaft to form a seal. Also called: packing box

Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

stuff′ing box`

a device for preventing leakage of gases or liquids along a moving rod or shaft at the point at which it leaves a cylinder, tank, ship hull, etc.

Also called gland.

[1790–1800]

ThesaurusAntonymsRelated WordsSynonymsLegend:

Noun

stuffing box - a small chamber in which packing is compressed around a reciprocating shaft or piston to form a seal

packing box

chamber - a natural or artificial enclosed space

packing nut, stuffing nut - a nut used to tighten a stuffing box

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References in periodicals archive

These valves allow for zero emissions, and are ideal for applications where packed valves may not reliably contain light gases or hazardous system fluids, due to leakage in the stem/packing seal area or stuffing box wall/ packing seal area.

Conval

A Thermocouple, located by the stuffing box, signals when the set-point has been reached and the pumped fluid (such as asphalt or bitumen) is in a liquid state and therefore ready for pumping.

Electric heating on Viking gear pumps

* Easy serviceability, with a unique suction seal ring that can be adjusted while the pump is running to maintain optimal impeller clearance and a split stuffing box for packing maintenance.

Goulds XHD Lined Slurry Pump from ITT for extra heavy duty use

Quadna redesigned the mixer stuffing box for a John Crane Type 3740D cartridge split seal using the Vespel sleeve bearing.

Mixer seal gets major makeover

AxFlow also took the opportunity to convert the upper stuffing box to a split semi-cartridge mechanical seal in order to allow easy replacement without there being a need to remove the motor, bearing and coupling.

Restoration treatment for power station cooling water pump

"And with the exception of a few newer materials," adds Jana, "that's still usually the way it's done: a drippy old stuffing box squeezing a hard-to-turn shaft."

Solutions by Seatorque: using the latest technology, Peter Stolper builds a better boat driveshaft

The static and sliding surface of the traditional stuffing box are effectively interchanged, with the advantage than the geometry if the sliding sealing surface can now be produced more accurately and less expansively and there is no longer any wear on the shaft or shaft sleeve.

Lip seals and mechanical face seals--performance criteria