Abstract: A press connection system comprises a press tool (50, 60), a fitting (1) and at least a first tube (2) of a first tube diameter (R13), the press tool (50) to act with force on a deformation zone (3) of the fitting (1). The deformation zone (3) is pressed either on first tube (2) of a first tube diameter (R13) or to a second tube (2) of a second tube diameter (R23), the second tube diameter (R23) being smaller than the first tube diameter (R13). Further, a press tool, inserts therefore and a tubing system and the use of these enable to connect tubes of more than one diameter to the fitting.

Abstract: A tool (20) for a pipe fitting arrangement in which a pipe is retainable arranged within a housing (1) by teeth (13) of a grip ring (12) placed within the housing, the tool comprising: first engagement means for engaging the pipe, said first engagement means having at least one part (12) adapted to enter the housing around the pipe in order to force the teeth of the grip ring out of engagement with the pipe, second engagement means for engaging the first engagement means as well as the housing in order to locate the housing relative to the tool, and a handle connected or connectable with the second engagement means. The first engagement means being connected to the second engagement means via at least one first joint being in form of a pivot (24f) and/or at least one first spring means (38) in order to be at least partly displaceable relative to the second engagement means, and a method using such a tool.