Abstract: The head is determined by a valvular body defined by a housing (4) inside of which there is a sealer bushing (5) of the annular discharge outlet (7), which is crossed through by a vertical tube (8) whose bottom end can penetrate into the bottle (1) to be filled. The bushing (5) is axially connected to another segmented one (11) which pressed on the tube (8) by means of peripheral elastic rings (13). Both bushings incorporate both elastic inside rings (14-15), one of the non-slip type (14), which adjusts into the cylindrical periphery of the tube (8). Between the annular bed joint (6) of the sealer bushing (5) and the discharge outlet (7) there are two radial ducts (16-17) one (17) of which is connected to a discharge valve and the other (16) bifurcates to connect to both pressure (18) and vacuum (19) units of temporary and alternate operation. The bottle is pushed along its base in order to adjust hermetically to the discharge outlet (7) provided with an elastic bushing (3).