DISPOSITIF DE REMPLISSAGE A RETOUR D'AIR SEPARE

摘要

Liquid from a supply tank B flows into a container C via outer and central annular chambers 14, 8 of filling apparatus A. Communication between the chambers is controlled by a flexible diaphragm 5 selectively urged against an annular seat 15 on a wall 10 separating the chambers in response to air pressure supplied to a chamber 23 on an opposite side of the diaphragm.