Abstract: A quick coupling (1) comprising a sleeve-shaped coupling body (3) with a receiving opening (4) to receive one end (5) of a pipe (2), a retaining element (7) to hold the end (5) of the pipe in the coupling body (3), a sealing element (8) to seal the pipe (2) against the coupling body (3) and a securing element (9) to secure the connection between the pipe (2) and the coupling body (3), in conjunction with first and second locking ribs (23,24) adjacent to the receiving opening (4) on an external surface (21) of the coupling body (3), which ribs extend outwards in a radial direction and interact with the securing element (9) for the purpose of securing a connection between the pipe (2) and the coupling body (3).

Abstract: A quick coupling (1) comprising a sleeve-shaped coupling body (3) with a receiving opening (4) to receive one end (5) of a pipe (2), a retaining element (7) to hold the end (5) of the pipe in the coupling body (3), a sealing element (8) to seal the pipe (2) against the coupling body (3) and a securing element (9) to secure the connection between the pipe (2) and the coupling body (3), in conjunction with which reinforcing ribs and locking ribs (23,24) are executed adjacent to the receiving opening (4) on an external surface (21) and an internal surface (22) of the coupling body (3), which ribs extend inwards and outwards in a radial direction and interact with the securing element (9) for the purpose of securing the connection between the pipe (2) and the coupling body (3).

Abstract: A threaded pipe coupling for connecting a pipe to a connection part with a conical exterior surface, especially for connecting copper pipes in refrigeration technology, with a sleeve-shaped union nut to form a threaded coupling with the connection part and a clamping ring arranged within the union nut. To enable an easy-to-realize coupling also without additional elements and without preliminary work, the clamping ring has a conical inner surface, corresponding to the conical exterior surface of the connection part, with a sealing bead coming into contact with the conical exterior surface of the connection part.