Pipeline pig with a speed control bypass

摘要

The inlet opening(9) closed off by a sealing element is located on the outer wall(2a) of the cylindrical housing(2) of the vehicle(1), and the shut-off element is steplessly movable parallel to the generated surface of the cylindrical housing and is part of it. The pipeline vehicle has hydraulic or pneumatic actuating components(12) for operation of the shut-off element. Speed measurement devices with metering wheels are in contact with the inner wall of the pipeline.