Patent ID: 8172279

Claim:
A method for manufacture of a flanged member for a pipe system included in pressure equipment, the flanged member including a radially projecting flange part and a pipe part, the flange part having a front face and a rear face and the pipe part having a first end and a free end located opposite the first end, the front face having a contact surface operable to be assembled with a first part of the pipe system, the rear face of the flange part extending radially inwardly and merging with the first end of the pipe part delimiting the flange part at its rear end, the free end of the pipe part being operable to be welded to a second part of the pipe system, and the flange part having a mass M f and the pipe part having a mass M p , the method comprising the steps of: machining the flanged member; and prior to final machining of the front face of the flange part, restricting the pipe part to an axial length (a) selected such that the mass M p of the pipe part is equal to at least 35% of the mass M f of the flange part so as to substantially eliminate distortion of the contact surface on the front face of the flange part upon welding of the free end of the pipe part.