CLOSING DEVICE Russian patent published in 2023 - IPC F16L55/124 F16L55/132 

FIELD: pipeline equipment.

SUBSTANCE: closing device is designed to shut off existing pipelines through which gaseous and liquid substances are transported while maintaining transportation through the bypass outlet. The overlap is achieved by increasing the radial size of the annular elastic sealing element and its tight pressing against the inner wall of the pipeline as a result of uniform lateral compression between the fixed disk and the movable disk, which are configured for relative axial movement. The installation of a drive unit based on a hydraulic motor and a worm-gear drive unit on the closing unit, as well as the choice of a trapezoidal cross-sectional shape of the annular elastic sealing element, ensures the creation of a reliable and safe design for effective operation on real high-pressure pipelines with a large pipe diameter, having an elliptical cross-section, as well as at the welds of the pipeline and in the presence of corrosive deposits and defects inside the pipeline.

EFFECT: creation of a reliable and safe design for effective operation on real high-pressure pipelines.

8 cl, 6 dwg