A general purpose coupling which can close at either end of the connection.  It is a convenient, compact coupling set which connects and disconnects easily, providing dependable service for fluid transfer of hydraulic, pneumatic, and vacuum systems 

氣動快速接頭是一種通用聯(lián)軸節(jié)，可在連接的任一端閉合。它是一個方便，緊湊的耦合裝置，易于連接和斷開，為液壓、氣動和真空系統(tǒng)的流體輸送提供可靠的服務。