Abstract: The invention relates to a fitting for connecting lengths of pipe by compression, having a substantially cylindrical internal contour. The fitting has a ridge which is configured in a radially outward direction and in which a sealing element is provided. The fitting is slidable onto the lengths of pipe, the internal contour having a region of non-circular cross-section. The invention also relates to a connecting arrangement for connecting lengths of pipe by compression, comprising a length of pipe and a fitting plus a sealing element which is arranged in the ridge. One axial gap which extends over the entire connecting region is formed between the length of pipe and the internal contour of the fitting in the uncompressed state. Such an axial gap with an open end would ensure that a leak exists even in the region of the sealing element in an uncompressed state.

Abstract: The invention relates to a fitting for connecting lengths of pipe or tube by compression, having a substantially cylindrical internal contour. The fitting has at least one ridge which is configured in a radially outward direction and in which a sealing element is provided. The fitting is slidable onto the lengths of pipe or tube, the internal contour of the fitting having a region of non-circular cross-section at least one end. The invention also relates to a connecting arrangement for connecting lengths of pipe or tube by compression, comprising at least one length of pipe or tube and a fitting plus a sealing element which is arranged between the two latter in a ridge in the fitting. The internal contour of the fitting is partly of a non-round form and at least one axial gap which extends over the entire connecting region is formed between the length of pipe or tube and the internal contour of the fitting in the uncompressed state.