Quick-disconnect couplers are the fastest, easiest, and most reliable means of joining pneumatic and fluid transfer lines. All quick-disconnect couplers work on the same principles:
Hardened balls or pins engage a groove in the coupler plug to hold it securely against a soft seal, while permitting the assembly to swivel to avoid kinking or twisting the hose.
A sliding sleeve retracts to release the locking balls so the plug can be inserted or removed. The sleeve automatically returns to its locked position when released.
An automatic shutoff valve in the coupler seals instantly upon uncoupling, eliminating the need for a separate shutoff.