US 11,852,268 B2
Flange connection set
André Guercio Faísca, Rio de Janeiro (BR); Guilherme Sousa Moura, Rio de Janeiro (BR); Huei Sun Lai, Rio de Janeiro (BR); Ivar Hordnes, Oslo (NO); Leonardo de Araujo Bernardo, Rio de Janeiro (BR); Nigel Mckie, Conroe, TX (US); and Renato Saioron Bernardo, Cruzeiro (BR)
Assigned to FMC TECHNOLOGIES DO BRASIL LTDA, Rio de Janeiro (BR)
Appl. No. 17/054,727
Filed by FMC TECHNOLOGIES DO BRASIL LTDA, Rio de Janeiro (BR)
PCT Filed May 9, 2019, PCT No. PCT/BR2019/050171
§ 371(c)(1), (2) Date Nov. 11, 2020,
PCT Pub. No. WO2019/213728, PCT Pub. Date Nov. 14, 2019.
Claims priority of application No. 102018009670-2 (BR), filed on May 11, 2018.
Prior Publication US 2021/0239246 A1, Aug. 5, 2021
Int. Cl. F16L 23/18 (2006.01); F16L 23/032 (2006.01); F16L 23/20 (2006.01); G01M 3/02 (2006.01); F16L 23/22 (2006.01)
CPC F16L 23/18 (2013.01) [F16L 23/032 (2013.01); F16L 23/20 (2013.01); F16L 23/22 (2013.01); G01M 3/02 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A flange connection set comprising: a modified compact flange comprising a tab, said tab comprising a truncated conical shaped-contact face having an angulation in a range of 0.05 to 0.9 degrees with a first contact face of the connecting component; a front contact face, parallel to the contact face of the tab, which also has a truncated conical shape and the same angulation as the contact face of the tab, in the range of 0.05 to 0.9 degrees; an internal contact face, with a truncated conical profile, forming an obtuse angle with the contact face of the tab and an obtuse angle with a surface parallel to the first contact face of the connecting component; a second contact face of the tab bounded on one side by the internal contact face of the tab and, on the other side, by an internal radius of a conduit tube; a protrusion across an entire perimeter of a lower end of the internal contact face of the tab; holes, arranged symmetrically in the tab, for fasteners to be inserted; a channel with a diameter of 3 mm, which crosses the modified compact flange;
a KX sealing ring, having a first groove and, parallel, a second groove in its central region surrounding a perimeter of the sealing ring, an elastomeric seal positioned in the groove and an elastomeric ring positioned in the groove; a recess on a face of the sealing ring, transverse to the first and second grooves and; a first contact face with a truncated conical profile and a second contact face with a truncated conical profile on an external surface across the perimeter of the sealing ring;
the connecting component comprising an internal contact face with a truncated conical profile, forming an obtuse angle with the first contact face of the connecting component and an obtuse angle with the surface which, in turn, is parallel to the contact face of the connecting component; a second contact face bounded on one side by the internal contact face of the connecting component and, on the other side, by the internal radius of the conduit tube; the connecting component further having holes on its first contact face, arranged symmetrically on the first contact face, for fixing fasteners;
wherein the flange connection set comprises coupling the sealing ring to the modified compact flange and coupling the modified compact flange to the connecting component by fasteners, wherein the internal contact face of the tab of the modified compact flange comes into contact with the first contact face of the sealing ring, providing a first metal-to-metal sealing region, the internal contact face of the connecting component comes into contact with the second contact face of the sealing ring, providing a second metal-to-metal circular sealing region and the tab of the modified compact flange bends, causing the first contact face of the tab to come into full contact with the first contact face of the connecting component, arranging the two faces at the same angulation and the first elastomeric seal interfacing with the ends of the first contact face of the tab of the modified compact flange and the first contact face of the connecting component.