Connecting arrangement for connecting the free end of a pipe which is not part of the connecting arrangement, comprising • a tubular support body and • an outer sleeve which is arranged at least partially around the support body, is held on the support body and forms, together with the support body, a receiving space into which the pipe can be inserted, and • a clamping device which is received in the receiving space and comprises at least one clamping element that is intended to engage with a pipe inserted into the receiving space, in such a way that said element opposes a movement of the pipe out of the receiving space, • an indicating device which can be transferred, by the pipe inserted into the receiving space, into an indicating position in which said device is aligned with at least one opening provided in the outer sleeve, and • a sealing device which is received in a groove formed in the outer surface of the support body and is intended to sealingly engage with the inner surface of a pipe inserted into the receiving space, the connecting arrangement further comprising a protective device which covers the sealing device in the groove in a ready-to-install position and is operatively connected to the indicating device to form a sliding device, characterised in that the sliding device has a base ring which is connected to the indicating device via connecting portions, in that the sliding device has one or more axial passages, at least one clamping element of the clamping device passing through at least one axial passage, and in that the clamping device has a base ring from which a plurality of clamping elements protrudes in the axial direction. • a tubular support body and • an outer sleeve which is arranged at least partially around the support body, is held on the support body and forms, together with the support body, a receiving space into which the pipe can be inserted, and • a clamping device which is received in the receiving space and comprises at least one clamping element that is intended to engage with a pipe inserted into the receiving space, in such a way that said element opposes a movement of the pipe out of the receiving space, • an indicating device which can be transferred, by the pipe inserted into the receiving space, into an indicating position in which said device is aligned with at least one opening provided in the outer sleeve, and • a sealing device which is received in a groove formed in the outer surface of the support body and is intended to sealingly engage with the inner surface of a pipe inserted into the receiving space, the connecting arrangement further comprising a protective device which covers the sealing device in the groove in a ready-to-install position and is operatively connected to the indicating device to form a sliding device, characterised in that the sliding device has a base ring which is connected to the indicating device via connecting portions, in that the sliding device has one or more axial passages, at least one clamping element of the clamping device passing through at least one axial passage, and in that the clamping device has a base ring from which a plurality of clamping elements protrudes in the axial direction.