The utility model relates to the field of pipe fittings, in particular, it can be used when carrying out liquid cleaning under high pressure from dirt and tar-resin-paraffin deposits of the inner surface of fiberglass pipes used in field pipelines and oil pipelines. The technical result, which consists in reducing the downtime of pipelines for transporting well products by accelerating the process of connecting the washed section of the fiberglass pipe and the pipe (hose) for supplying the washing solution, is achieved by the fact that the device includes a pressure cup 1 mounted concentrically on the end section of the fiberglass pipe 2. the pressure cup 1 has a flange 3 and a flange 5 of a smaller diameter than the flange 3. Close to the flange 5, on the end section of the fiberglass pipe 2 concentr a set of external rubber cuffs is clearly installed 6. A hollow rod 7 is concentrically installed in the inner channel of the end section of the fiberglass pipe 2, the inner rubber cuffs are installed on its lateral surface 8. A cylindrical glass 9 with a flange is installed on a section with external rubber cuffs 6. 10, facing the flange 3 of the pressure cup 1. On the other hand, the cylindrical glass 9 is closed, with a central through hole and four diametrically arranged holes 14 in the end part. A fixing nut 15 is installed on the threaded section of the lateral surface of the hollow rod 7. The water mixture for flushing is supplied through a hose connected to the hollow rod 7 with a union nut 20. 1 cp f-ly, 1 ill.
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