Ask Gland Packing

"A gland is a general type of stuffing box, used to seal a rotating or reciprocating shaft against a fluid. The most common example is in the head of a tap (faucet) where the gland is usually packed with string which has been soaked in tallow or similar grease. The gland nut allows the packing material to be compressed to form a watertight seal and prevent water leaking up the shaft when the tap is turned on. The gland at the rotating shaft of a centrifugal pump may be packed in a similar way and graphite grease used to accommodate continuous operation. The linear seal around the piston rod of a double acting steam piston is also known as a gland, particularly in marine applications. Likewise the shaft of a handpump or wind pump is sealed with a gland where the shaft exits the borehole.

Other types of sealed connections without moving parts are also sometimes called glands; for example, a cable gland or fitting that connects a flexible electrical conduit to an enclosure, machine or bulkhead facilitates assembly and prevents liquid or gas ingress."

http://en.wikipedia.org/wiki/Stuffing_box

Gland packing....

https://www.youtube.com/watch?v=xrB1IpCXNQ0

Then, there's this"

• Static Radial Applications

Common Fixed Seal

Dynamic Reciprocating Applications

Moving Piston/Cylinder

Static Axial Applications

Face Seals

Metric Gland Design

so is it correct to assume that "gland packing" refers to the packing rings as in the picture above where as "packing gland" refers to the entire assembly of the stuffing box including the packing, gland follower, etc.? please correct me.

Yes....

Correct.