An apparatus and system for transferring a liquid, such as a liquid anesthetic, from a reservoir to a machine while minimizing the release of the liquid to the surrounding environment. The apparatus can include a frame member defining a frame passage extending from a first end of the frame member to a second end of the frame member and a nozzle connected to the frame member. The nozzle can be moveable between a first position and a second position relative to the frame member, and can define a plug member configured to block the second end of the frame passage when the nozzle is in the first position. The apparatus can further include a biasing member connected to the frame member and the nozzle.一種裝置及系統，用以自一貯器輸送一液體，例如一液體麻醉劑至一機器，而使該液體釋出至周遭環境降至最低。該裝置可包含一架體構件，其界定一架體通道，該架體通道自該架體構件的一第一端延伸至該架體構件的一第二端，及一噴嘴，其連接至該架體構件。該噴嘴可相對於該架體構件移動於一第一位置與一第二位置之間，且可界定一塞體構件，其構形以當該噴嘴位於該第一位置時擋止該架體通道的第二端。該裝置可進一步包含一偏壓構件，其連接至該架體構件及該噴嘴。
