A valve assembly for a machine for filling containers with a liquid has an adduction conduit extending along a valve axis and connectable to a tank of the filling machine to allow inflow of the liquid through a discharge mouth. A shutter arranged inside the adduction conduit and moving along the valve axis between a closing position and one or more opening positions has an annular gasket that with the shutter in the closing position sealingly engages an abutment seat. The annular gasket has a first annular portion for sealingly engaging a first portion of the abutment seat, and a second annular portion for sealingly engaging a second portion of the abutment seat. At least one flow window interrupts an annular continuity of the second annular portion and allows a partialized flow of liquid through the adduction conduit when the first annular portion is spaced apart from the abutment seat.

The invention relates, inter alia, to an apparatus for filling containers with a filling material. The apparatus has a filling material reservoir and a supply line which is connected to the filling material reservoir. The apparatus further has a filling element with a filling valve and a filling line which connects the filling material reservoir and the filling valve. The apparatus further has a further line which is connected to the filling line for media discharge and/or media supply, and a bypass line which connects the filling material supply line and the further line to one another.