A flexible connecting element for connecting a first device to a second device and for conveying a bulk material from the first device into the second device, wherein the connecting element comprises: a base body defining a conveying channel having a first end portion at which an inlet opening is formed and which, when the flexible connecting element is used in the intended manner, is attached to the first device, in such a way that the bulk material can enter into the conveying channel through the inlet opening, and a second end portion, at which an outlet opening is formed and which, when the flexible connecting element is used in the intended manner, is attached to the second device, in such a way that the bulk material can exit the conveying channel through the outlet opening into the second device, wherein at least the first and/or the second end portion (3, 4) of the base body is made of a flexible material and defines a flange (33, 43) which extends outwards in a radial direction, in which flange a respective receiving space (31, 41) is defined which encircles the corresponding opening and into which a dimensionally stable annular stabilisation element (32, 42) is inserted in a replaceable manner, in such a way that, when the corresponding end portion is attached in the intended manner, a clamping force generated by a clamp acts on the stabilisation element, wherein the annular stabilisation element (32, 42) extends in the radial direction in the respective flange (33, 43), in such a way that it is located between an end face (35, 45) of the respective flange (33, 43), which abuts against a connection flange formed at the corresponding device when the first and/or second end portion (3, 4) are attached in the intended manner, and a surface (36, 46) of the respective flange (33, 43) which faces away from the end face (35, 45), in such a way that, when the respective flange (33, 43) is attached in the intended manner to the connection flange by means of a clamp, the clamping force generated by the tightening of the clamp and acting on the surface (36, 46) facing away acts on the annular stabilisation element (31, 41), in such a way that the flange and the connection flange are pressed against one another. a base body defining a conveying channel having a first end portion at which an inlet opening is formed and which, when the flexible connecting element is used in the intended manner, is attached to the first device, in such a way that the bulk material can enter into the conveying channel through the inlet opening, and a second end portion, at which an outlet opening is formed and which, when the flexible connecting element is used in the intended manner, is attached to the second device, in such a way that the bulk material can exit the conveying channel through the outlet opening into the second device, wherein at least the first and/or the second end portion (3, 4) of the base body is made of a flexible material and defines a flange (33, 43) which extends outwards in a radial direction, in which flange a respective receiving space (31, 41) is defined which encircles the corresponding opening and into which a dimensionally stable annular stabilisation element (32, 42) is inserted in a replaceable manner, in such a way that, when the corresponding end portion is attached in the intended manner, a clamping force generated by a clamp acts on the stabilisation element, wherein the annular stabilisation element (32, 42) extends in the radial direction in the respective flange (33, 43), in such a way that it is located between an end face (35, 45) of the respective flange (33, 43), which abuts against a connection flange formed at the corresponding device when the first and/or second end portion (3, 4) are attached in the intended manner, and a surface (36, 46) of the respective flange (33, 43) which faces away from the end face (35, 45), in such a way that, when the respective flange (33, 43) is attached in the intended manner to the connection flange by means of a clamp, the clamping force generated by the tightening of the clamp and acting on the surface (36, 46) facing away acts on the annular stabilisation element (31, 41), in such a way that the flange and the connection flange are pressed against one another.