that lies furthest away from delivery orifice 8 the bellows 16 are manufactured at that end in a single piece that incorporates a first annular bellows section 16 1 an annular recess 20 formed on the step 6 2 accommodates the first annular bellows section 16 1 a clamping ring 21 that encircles the filling element axis fa clamps the first annular bellows section 16 1 to this annular recess 20 at its lower end which lies nearest to the delivery orifice 8 the bellows 16 have an integral second annular bellows section 16 2 that extends into the annular body 13 1 the second annular bellows section 16 2 connects to a recess on the inner face of the annular body 13 1 this connection is established in any of a variety of ways including without limitation gluing clipping clamping vulcanizing and screwing regardless of how it is made the connection results in the inner face of the second bellows section 16 2 being flush or essentially flush with the contiguous inner face of annular body 13 1 in order to fill a container 2 that is arranged with its container orifice beneath the filling element 3 the sealing tulip 13 is first lowered along the filling element axis fa down onto the container 2 so that the inner ring seal 14 lies sealed against a container edge or an orifice edge 2 1 that surrounds the container 39 s orifice this centers the container 2 and places it in a sealed position on the filling element 3 the controlled lowering of the sealing tulip 13 is effected for example in a cam controlled manner by a cam follower 17 the outer lip seal 15 is used in the case.