PIPELINE JOINT Russian patent published in 2014 - IPC F16L37/12 

FIELD: machine building.

SUBSTANCE: invention relates to pipeline joints. Joint (10) of pipelines has case (12) and ring seal (26) fitted in the case open area (20) thereto working fluid flows. Seal (26) comprises the case main part (34), rectangular in cross-section, and sealing element (38) extending radially from inner peripheral surface of the case main part (34). Sealing element (38) is arranged approximately at the case main part (34) centre and directed over its width. Note here that it features triangular cross-section converging toward the inner peripheral side. When fluid pipeline (18) is fitted in open area (20) said sealing element (38) of seal ring (26) slides to contact with fluid pipeline (18) outer peripheral surface.

EFFECT: higher reliability of joints.

9 cl, 9 dwg