Device for filling bulk material from a container or housing into a tubular container bag, which is connected to the collecting housing and the upper end of which can be closed, while the second or lower end of the container bag can be closed with the aid of at least three sealing rings (1, 2, 3) of the device arranged coaxially with respect to a central axis of the housing in such a way that, in particular, even very small particles are not released to the outside into the ambient air, wherein the device comprises the following features: a) the individual pressurizable sealing rings (1, 2, 3) are in each case arranged offset from each other amongst one another with respect to the longitudinal central axis of a device for filling bulk material; b) the container of the device in the region of its lower end comprises a cover that is movable up and down; c) the first seal is firmly arranged on the movable cover and can be adjusted upwards and downwards together with the movable cover; d) the second seal is arranged on the fixed housing of the device; e) the third seal is arranged between the first and the second seals (1, 2) on the fixed housing of the device or a housing part of the device; f) an interspace formed between two seals for temporarily receiving a part of the film tube or a container bag is only oriented downwards and/or open at the bottom with respect to the base surface of the container, characterized in that, viewed in the filling direction, the lower or first sealing ring is connected to the movable cover or annular body, wherein the second sealing ring is arranged at approximately the same diameter with respect to the transverse plane at a distance from the first sealing ring, and the outer diameter of the third seal forms an intermediate space or gap with respect to the central axis of the device with the second seal, into which space a web of the device connected to the annular body is inserted and seals the tubular container bag when the latter is clamped in the intermediate space or gap. wherein the device comprises the following features: a) the individual pressurizable sealing rings (1, 2, 3) are in each case arranged offset from each other amongst one another with respect to the longitudinal central axis of a device for filling bulk material; b) the container of the device in the region of its lower end comprises a cover that is movable up and down; c) the first seal is firmly arranged on the movable cover and can be adjusted upwards and downwards together with the movable cover; d) the second seal is arranged on the fixed housing of the device; e) the third seal is arranged between the first and the second seals (1, 2) on the fixed housing of the device or a housing part of the device; f) an interspace formed between two seals for temporarily receiving a part of the film tube or a container bag is only oriented downwards and/or open at the bottom with respect to the base surface of the container, a) the individual pressurizable sealing rings (1, 2, 3) are in each case arranged offset from each other amongst one another with respect to the longitudinal central axis of a device for filling bulk material; b) the container of the device in the region of its lower end comprises a cover that is movable up and down; c) the first seal is firmly arranged on the movable cover and can be adjusted upwards and downwards together with the movable cover; d) the second seal is arranged on the fixed housing of the device; e) the third seal is arranged between the first and the second seals (1, 2) on the fixed housing of the device or a housing part of the device; f) an interspace formed between two seals for temporarily receiving a part of the film tube or a container bag is only oriented downwards and/or open at the bottom with respect to the base surface of the container, characterized in that, viewed in the filling direction, the lower or first sealing ring is connected to the movable cover or annular body, wherein the second sealing ring is arranged at approximately the same diameter with respect to the transverse plane at a distance from the first sealing ring, and the outer diameter of the third seal forms an intermediate space or gap with respect to the central axis of the device with the second seal, into which space a web of the device connected to the annular body is inserted and seals the tubular container bag when the latter is clamped in the intermediate space or gap.