(57) The introduction of the gas and the expulsion of the air happen in laminar regime,
avoiding therefore the mixing of the gas in entry with the present air inside the
panel of insulating glass (4). To allow the obtaining of the laminar regime, the inferior
side of the spacer frame is properly used with functions of distribution manifold.
Such procedure and device, due to their peculiar configurations, allow a notable saving
in the costs reducing, respect the traditional automatic methods, the quantity of
the gas necessary to the filling at a quantity nearly close to that corresponding
to the volume of the room of the panel of glass.
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