FLANGE CONNECTION SEAL Russian patent published in 2021 - IPC E21B33/02 F16L23/18 F16J15/08 

FIELD: mechanical engineering.

SUBSTANCE: invention relates to the field of mechanical engineering, in particular to the oil and gas production, oil and gas processing industry, it can be used for sealing flanged and quick-release connections of wellhead equipment, main pipelines, connections of pumping units with pipelines. A flange connection seal is proposed, including a sealing metal gasket with multidirectional sealing parts, each of which is located in a chamber formed by an annular groove of a trapezoidal profile at the ends of the corresponding flanges connected to each other. The sealing parts of the gasket are made of different diameters and sizes for the diameter and size of the annular groove in the end face of the corresponding flange for sealing when connecting the flanges. The sealing parts are connected to each other by a jumper, forming on the reverse side planes parallel to the planes of the end face of the other flange.

EFFECT: technical result is a simplification of the design and expansion of the functional capabilities of the seal due to the possibility of connecting flanges of various dimension-types without the use of adapter sleeves and additional operations.

2 cl, 2 dwg