Patent ID: 7393020

Claim:
A connection for connecting pipes to one another; the connection comprising: a first pipe having a first flange of sheet metal, wherein the first flange has a first wall connected circumferentially to the first pipe; a second pipe having an end section that is shaped as a second flange; a tightenable clamp engaging across the first and second flanges and having conical sidewalls forcing the first and second flanges axially against one another when the clamp is tightened; wherein the first flange delimits together with the first pipe a closed annular chamber that is coaxial to a longitudinal axis of the first pipe; wherein the first flange has a second wall that is glidingly supported on a free end of the first pipe whereby the first flange can move in a radial direction relative to the first pipe so as to compensate for radial expansion pressure of the first pipe, wherein the free end of the first pipe is beveled.