A pipeline misalignment flange, comprising: a socket member having a first substantially spherical internal surface having a first diameter, a retainer member having a second substantially spherical internal surface having a second diameter larger than the first diameter, the socket member and the retainer member being fastened together; and a ball member having a first substantially spherical external surface for engaging the socket member and having a diameter approximately equal to the first diameter and a second substantially spherical external surface for engaging the retainer member and having a diameter approximately equal to the second diameter, the socket member having a first face surrounding the first substantially spherical internal surface, the first face having a recessed channel, the second substantially spherical external surface including an axially protruding portion with an undercut, the ball member being pivotable relative to the socket member such that the axially protruding portion of the second substantially spherical external surface is received in the recessed channel, and the socket member and the retainer member each include a mounting flange (26, 30) having a plurality of apertures for receiving fasteners for securing the socket member and the retainer member together, and characterized in that, the first substantially spherical external surface of the ball member includes a metal seal ring at a distal end thereof, wherein the first substantially spherical internal surface includes a recessed seal ring therein, at a maximum misalignment between the ball member and the socket member one side of the axially protruding portion of the ball member provides a complete surface contact with the recessed channel. a socket member having a first substantially spherical internal surface having a first diameter, a retainer member having a second substantially spherical internal surface having a second diameter larger than the first diameter, the socket member and the retainer member being fastened together; and a ball member having a first substantially spherical external surface for engaging the socket member and having a diameter approximately equal to the first diameter and a second substantially spherical external surface for engaging the retainer member and having a diameter approximately equal to the second diameter, the socket member having a first face surrounding the first substantially spherical internal surface, the first face having a recessed channel, the second substantially spherical external surface including an axially protruding portion with an undercut, the ball member being pivotable relative to the socket member such that the axially protruding portion of the second substantially spherical external surface is received in the recessed channel, and the socket member and the retainer member each include a mounting flange (26, 30) having a plurality of apertures for receiving fasteners for securing the socket member and the retainer member together, and characterized in that, the first substantially spherical external surface of the ball member includes a metal seal ring at a distal end thereof, wherein the first substantially spherical internal surface includes a recessed seal ring therein, at a maximum misalignment between the ball member and the socket member one side of the axially protruding portion of the ball member provides a complete surface contact with the recessed channel.