A robot applicable to synchronous patrol of a long branch pipeline and a main pipeline includes a walking apparatus and detection apparatuses located on a top of the walking apparatus, where the detection apparatuses accompany the walking apparatus to patrol the main pipeline. The robot further includes a sub-walking apparatus located at a front end of the walking apparatus, where front wheel obstacle-crossing apparatuses of the walking apparatus are also capable of limiting the sub-walking apparatus while crossing an obstacle in the main pipeline, and when the branch pipeline is encountered, the front wheel obstacle-crossing apparatuses are lifted to a certain height, a bin outlet of the sub-walking apparatus is released, and the sub-walking apparatus is separated from the walking apparatus and independently patrols the branch pipeline.

The invention relates to a clearing device for the rehabilitation of a pipeline, especially for clearing a branching-off in a pipeline system rehabilitated by means of a tubular liner, comprising at least one clearing device, which is movably mounted by at least one degree of freedom, and a slope sensor located on the clearing device.

An apparatus, system, and method for tapping and reinforcing a valve of a liner lined host pipe with a fitting device assembly that includes a service sleeve having a flange, a cylindrical body, and an engaging end and a reinforcing sleeve having a flange, a cylindrical body, an engaging end having at least one annular ratchets configured to engage with the engaging end of the service sleeve in order to secure the service sleeve and the reinforcing sleeve together, and a plurality of cutouts in the cylindrical body. A cork assembly that includes the service sleeve and a cork having at least one radial appendage is inserted into the valve, then the host pipe is lined with a liner. The cork assembly is located, and the cork is removed from the cork assembly. The reinforcing sleeve is then installed into the service sleeve in the valve.

A controlled bending device in the form of an elongate member including a series of blocks configured to direct and/or control an extent of bending of the elongate member. The present invention further relates to a sealing packer for use in installing a flexible liner into a junction between a main pipe and a branch pipe, the sealing packer incorporating the bending device in a flexible lateral arm thereof to facilitate guidance of the flexible lateral arm into the branch pipe when the sealing packer is inserted (pushed or pulled) through the main pipe.

An apparatus, system, and method for tapping and reinforcing a valve of a liner lined host pipe with a fitting device assembly that includes a service sleeve having a flange, a cylindrical body, and an engaging end and a reinforcing sleeve having a flange, a cylindrical body, an engaging end having at least one annular ratchets configured to engage with the engaging end of the service sleeve in order to secure the service sleeve and the reinforcing sleeve together, and a plurality of cutouts in the cylindrical body. A cork assembly that includes the service sleeve and a cork having at least one radial appendage is inserted into the valve, then the host pipe is lined with a liner. The cork assembly is located, and the cork is removed from the cork assembly. The reinforcing sleeve is then installed into the service sleeve in the valve.