The invention relates to a pipe, in particular a plastic pipe for wastewater lines, which has at least one socket end which is provided with an annular bead (4) and a socket neck (3) and forms a first pipe (1) into the socket end of which the spigot end of a second pipe or shaped part (13) can be plugged and removed again therefrom, and in which an elastic annular seal (6) is inserted into the annular bead (4). According to the invention, the socket neck (3) of the pipe is provided with a screw thread (9) onto which there can be screwed a screw ring (8) which comprises an inner ring part (10) and an outer ring part (11) between which an annular gap is formed, and the ring parts (10, 11) are connected by means of a ring base (12) facing away from the annular bead (4), wherein, upon screwing the screw ring (8) onto the screw thread (9), the front edge (14) of the inner ring part (10) compresses the annular seal (6) inserted into the annular bead (4) and arrests the spigot end of the second pipe or shaped part (13) in the first pipe (1).
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