초록 ▼

A pipe coupling with a cylindrical pipe, whose smooth end section can be inserted into a fitting that has at least one sleeve-like area extending in the longitudinal direction. At least one sealing ring is arranged between the pipe outer wall and the fitting inner wall. The fitting and the pipe are

A pipe coupling with a cylindrical pipe, whose smooth end section can be inserted into a fitting that has at least one sleeve-like area extending in the longitudinal direction. At least one sealing ring is arranged between the pipe outer wall and the fitting inner wall. The fitting and the pipe are connected securely to each other by an externally applied pressing tool that acts in a plastically deforming manner on at least one radial plane of the sleeve-like area of the fitting as well as the pipe section located under this. A metal sleeve, which can be placed over the pipe ends by force, is arranged between the pipe outer wall and the fitting inner wall. The fixed axial extension of the metal sleeve surrounds the pipe starting from the pipe end face, and the length of the metal sleeve is selected so as to correspond to the required overlap between the pipe and the fitting. This required overlap is attained when, after placement of the fitting onto the metal sleeve, or after insertion of the pipe and the metal sleeve into the fitting, the end face of the fitting facing the pipe coincides exactly with the end of the metal sleeve, and the sealing ring, seen in cross-section, is penetrated by the metal sleeve.

대표청구항 ▼

[ What is claimed is:] [1.]1. A pipe coupling, comprising:a fitting that has at least one sleeve area extending in a longitudinal direction;a cylindrical pipe having smooth end section insertable into the fitting;at least one sealing ring arranged between an outer wall of the pipe and an inner wall

[ What is claimed is:] [1.]1. A pipe coupling, comprising:a fitting that has at least one sleeve area extending in a longitudinal direction;a cylindrical pipe having smooth end section insertable into the fitting;at least one sealing ring arranged between an outer wall of the pipe and an inner wall of the fitting, the fitting and the pipe being securely connectable to each other by an externally applied force which acts in a plastically deforming manner on at least one radial plane of the sleeve area of the fitting as well as the pipe end section located beneath; anda metal sleeve arranged between the pipe outer wall and the fitting inner wall, the metal sleeve being placeable over the pipe end by force so that a fixed axial extension of the metal sleeve surrounds the pipe starting from an end face of the pipe, the metal sleeve having a length that corresponds to a required overlap between the pipe and the fitting, this required overlap being attained when an end face of the fitting facing the pipe coincides exactly with an end of the metal sleeve, the sealing ring being attached to the metal sleeve, the metal sleeve having an end facing away from the pipe end face, a radially outwardly extending stop being provided at the end of the metal sleeve so as to cover the fitting end face.