FLANGE CONNECTION Russian patent published in 2023 - IPC F16L23/18 

FIELD: pipeline construction.

SUBSTANCE: invention relates to pipeline systems, specifically to flange connections. A flange connection contains input, output, and movable flanges, a sealing gasket located between input and movable flanges. Input and output flanges are connected with pins, nuts, and limiters. The movable flange is connected to input or output flange with bolts. For replacement of the sealing gasket, it is enough to remove coupling elements being in a removal zone. Remaining coupling elements of the connection provide constant constructional length of the flange connection and centering of its elements.

EFFECT: replacement of a sealing gasket occurs without the use of special equipment for several minutes.

3 cl, 10 dwg