Filling assembly, gasket for use in said filling assembly, and a method for filling liquid

摘要

A filling assembly for filling of a tube of packaging material having a seal starting at a first level, comprises a conduit arranged to lead liquid into the tube of packaging material below said first level and a passage arranged to eject gas through openings into the tube of packaging material below said first level. The filling assembly is characterized in that a gasket is arranged to provide a seal between said filling assembly and said tube of packaging material upstream said openings such that the overpressure P1 downstream the gasket may exceed an ambient pressure Pa upstream the gasket.

主权项

1. A filling assembly for filling of a tube of packaging material having a longitudinal seal starting at a first level, said assembly comprising:
a conduit arranged to lead liquid into the tube of packaging material below said first level, a passage arranged to eject gas through openings into the tube below said first level, wherein a gasket is arranged to provide a seal between said filling assembly and said tube of packaging material upstream said openings such that an overpressure P1 downstream the gasket may exceed an ambient pressure Pa upstream the gasket, an outer diameter of the gasket is smaller than the inner diameter of the tube, the gasket comprises an annular body possessing a top surface and a flange extending radially outwards from the annular body, and a circumferential bead on the top surface of the annular body of the gasket, wherein the conduit arranged to lead liquid is arranged concentrically within the passage arranged to eject gas.