QUICK-ACTION COUPLING:
A device to join or separate fluid lines without the use of tools or special devices.

QUICK-ACTION COUPLING, BALL LOCKING TYPE:
A quick-action coupling which is connected and disconnected by applying an axial force to move an external sleeve. This sleeve motion allows detent balls in the female half to engage or disengage into a groove in the mating male tip (nipple) half.

QUICK-ACTION COUPLING, DOUBLE SHUT OFF:
A quick-action coupling with a shut-off valves in both mating halves.

QUICK-ACTION COUPLING, NON-VALVED:
Other nomenclature “straight-through”. A quick-action coupling without a shut-off valve in either half.

QUICK-ACTION COUPLING, SINGLE SHUT OFF:
A quick-action coupling with a shut-off valves in one half only.

QUICK-ACTION COUPLING, THREADED TYPE:
A quick-action coupling that has threads on both mating halves and is connected or disconnected by the rotation of the sleeve on the body half with respect to the male tip.