Patent ID: 7837236

Claim:
A pipe connection ( 1 ) comprising: a reshaped pipe ( 4 ) having a retention bulge ( 11 ) produced facing away from an end of the pipe by reshaping and projecting radially outward beyond an outer mantle surface of the pipe, a screw fitting body ( 2 ) having a 60° internal cone ( 6 ), a one-piece union nut ( 5 ), adapted to be screwed onto the screw fitting body ( 2 ), the one-piece union nut having an internal clamping face ( 15 ), which, in an operating state of the pipe connection ( 1 ), works together with an outwardly projecting retention face ( 12 ) of the retention bulge ( 11 ), and a one-piece adapter ring ( 3 , 30 ) supported on a side facing toward the screw fitting body ( 2 ) by a conical clamping face ( 7 ) in the 60° internal cone ( 6 ) of the screw fitting body ( 2 ), the one-piece adaptor ring having a radially running contact face ( 8 ) on a side facing toward the pipe and a peripheral guide collar on the side facing toward the pipe end, the peripheral guide collar projecting beyond this side, wherein the peripheral guide collar comprises a lug pointing radially inward and an interior forming a contact face for the mantle surface of the pipe wherein a radially running front face ( 14 ) at a terminal end of the pipe has a same cross-section as a remaining portion of the pipe ( 4 ) outside the retention bulge ( 11 ), wherein facing toward the one-piece adapter ring ( 3 , 30 ) the screw fitting body ( 2 ) has a solely conical butting surface formed by one single inclined surface extending to an inner cylindrical jacket of the screw fitting body and forming the 60° internal cone ( 6 ), the solely conical butting surface forming an only surface of the screw fitting body contacting the one-piece adapter ring in the operating state, and wherein the one-piece adapter ring ( 3 , 30 ) is supported in the operating state on the side facing toward the pipe ( 4 ) by the radially running contact face ( 8 ) which contacts the radially running front face ( 14 ) at the terminal end of the pipe.