Fluid coupling for matching delivery and supply lines irrespective of the relative rotational positions of the coupling members

摘要: A quick-connect coupling for interconnecting only matching fluid delivery and supply lines while preventing the inadvertent connection of mismatched where there are matched lines. The includes first second members that releasably slidably, axially interfitted with their passageways in communication. In disclosed embodiment a use chemical extraction system, one member is male connected to typical fifty gallon drum other female Key coding elements on movable into interengagement when but precluded from moving mismatched. If match exists, interfit without relative rotation irrespective rotational positions prior such interengagement. Latches allowed by key move latching match, mismatch. coupled thrusting together whereupon latches out allow interfitting then return positions. uncoupled simultaneously pressing inwardly outside pulling apart.