Methods and apparatus are provided for repairing a damaged area within a cored passage of a component. The method includes providing a repair tool that has a support portion, a leading portion extending from a first end of the support portion, and a trailing portion extending from a second end of the support portion. The leading portion of the repair tool is inserted into a first opening of the cored passage, and is threaded through the cored passage until the support portion is positioned at the damaged area within the cored passage. A restoration activity is performed on the damaged area as the support portion supports the cored passage proximate to the damaged area. Upon completion of the restoration activity, the repair tool is removed from the cored passage.

A system and method for efficiently and safely installing a pipe liner is provided, as well as methods of using the same. The system and method for efficiently and safely installing a pipe liner may provide an inverter configured to invert the pipe liner by introducing pressure into the pipe liner; provide a top roller, provide an assist system located between the inverter and the top roller, the assist system comprising: a main housing having a main housing top and a main housing bottom, and each of the main housing top and the main housing bottom having an opening; a first interior roller; a second interior roller; and a first motor; and feed the pipe liner onto the top roller, wherein the assist system feeds the pipe liner from the top roller to the inverter in an efficient and controller manner.

A method for sealing an opening extending radially from an outer circumferential surface to an inner circumferential surface of a tubular object in a nuclear power plant includes inserting a stopper from outside of the outer circumferential surface through the opening into the tubular object; and actuating a fastener from the outside of the circumferential surface to force the stopper radially outward to seal the opening. A mechanical seal assembly for plugging an opening in a tubular object by contacting an inner circumferential surface of the tubular object includes a stopper configured for insertion into an interior of the tubular object for plugging the opening. The stopper includes a surface configured for matching the inner circumferential surface of the tubular object. The mechanical seal assembly also includes a fastener passing through a hole in the stopper such that the fastener is actuatable from outside of the tubular object to force the surface of the stopper against the inner circumferential surface of the tubular object.

A method for sealing an opening extending radially from an outer circumferential surface to an inner circumferential surface of a tubular object in a nuclear power plant includes inserting a stopper from outside of the outer circumferential surface through the opening into the tubular object; and actuating a fastener from the outside of the circumferential surface to force the stopper radially outward to seal the opening. A mechanical seal assembly for plugging an opening in a tubular object by contacting an inner circumferential surface of the tubular object includes a stopper configured for insertion into an interior of the tubular object for plugging the opening. The stopper includes a surface configured for matching the inner circumferential surface of the tubular object. The mechanical seal assembly also includes a fastener passing through a hole in the stopper such that the fastener is actuatable from outside of the tubular object to force the surface of the stopper against the inner circumferential surface of the tubular object.

A light head for use in relining a pipe is disclosed. The light head comprises a proximal end cap, a distal end cap, and at least one body between the proximal end cap and the distal end cap. The proximal end cap also has an air inlet. The body has a longitudinal hole extending from the proximal end cap through the centre of the body towards the distal end cap and at least one air channel extending radially from the longitudinal hole to a radial air outlet. The longitudinal hole is configured to receive air from the air inlet such that in use air from the air inlet passes through the body and exits at the radial air outlet. The body is configured for supporting at least one light emitting diode on the periphery of the body in order to emit light radially from the light head towards the pipe.

A light head for use in relining a pipe is disclosed. The light head comprises a proximal end cap, a distal end cap, and at least one body between the proximal end cap and the distal end cap. The proximal end cap also has an air inlet. The body has a longitudinal hole extending from the proximal end cap through the centre of the body towards the distal end cap and at least one air channel extending radially from the longitudinal hole to a radial air outlet. The longitudinal hole is configured to receive air from the air inlet such that in use air from the air inlet passes through the body and exits at the radial air outlet. The body is configured for supporting at least one light emitting diode on the periphery of the body in order to emit light radially from the light head towards the pipe.

A method of repairing a pipe and/or a drain. The method involves covering a damaged section (103) of pipe (100) with a binder material (110) and a conductive/dissipative material (120). The conductive/dissipative material (120) is arranged in contact with, suitably within, the binder material (110) and functions to reduce static electrical charge build-up across the binder material, compared to the static charge build-up that may otherwise occur in a comparable section of binder material not having the conductive/dissipative material. The method may reduce the risk of a spark produced by a static electrical discharge across the binder material causing a flammable liquid within the pipe to ignite. The method may therefore provide a safer pipe repair, particularly wherein the pipe is normally used for transporting flammable liquids. A kit, composition, pipe and uses of a kit or composition to repair a pipe are also provided.

A magnetic patch system includes a sealing member configured for attachment to a pipeline proximate to a breach in a wall of the pipeline. A magnet is positioned at least partially within a housing arrangement. The magnet may be oriented to generate a force toward the wall of the pipeline to attach the housing arrangement to the wall of the pipeline and capture the sealing member between the housing arrangement and the wall of the pipeline. The system may be installed inside a pipeline using a remotely controlled robotic system.

A magnetic patch system includes a sealing member configured for attachment to a pipeline proximate to a breach in a wall of the pipeline. A magnet is positioned at least partially within a housing arrangement. The magnet may be oriented to generate a force toward the wall of the pipeline to attach the housing arrangement to the wall of the pipeline and capture the sealing member between the housing arrangement and the wall of the pipeline. The system may be installed inside a pipeline using a remotely controlled robotic system.

An end stopper (10) for liner systems for pipe and sewer rehabilitation with a liner which is arranged between two end stoppers (10) and can be acted upon by a pressure medium and can be applied reversibly to the circumference of the end stopper (10), is characterized in that the end stopper (10) is composed, in cross section, of a plurality of profile parts (100, 101, 102, 103, 104, 105) which are of part annular and/or part tubular shape and are conical, wherein at least one profile part (100) has a configuration that tapers conically from the inside to the outside.