METHOD FOR PIPELINE RESTORING USING LINER Russian patent published in 2023 - IPC F16L55/165 F16L1/10 

FIELD: pipeline repairs.

SUBSTANCE: invention relates to a method for restoring a pipeline using a liner. The method includes the steps of providing a connecting element configured to connect the liner to the pipeline element. The method uses a levelling device. The first levelling element of the device is connected to the end of the receiving pipe, and the second levelling element of the device is connected to the end of the connecting element for axial alignment of both components. A part of the liner is passed through the receiving pipe and the connecting element to expose the connecting section of the liner outside the receiving pipe. The connecting element is brought towards the receiving pipe so that the first and second levelling elements come into contact, and the connecting section of the liner enters the connecting element. The liner joint section is then pressurized to press against the inner surface of the liner and the curable liner resin composition is cured to form a functional bond between the liner and the liner joint.

EFFECT: restoring of a pipeline using a liner.

21 cl, 22 dwg