A device for renovating damaged line walls proximate the connection of an auxiliary line to a main line, includes a movable support element, wherein a cover element and an expandable element are arranged on the support element. The expandable element can be positioned in the auxiliary line in or through a first recess in the cover element, and can lie against the wall of the auxiliary line to form a shell. The cover element has a second recess for introducing a curable viscous renovation compound from a storage device into space between the shell and the main and auxiliary line walls by a transport element. A heating device can be integrated into the cover element, the storage device, and/or the transport element proximate the second recess and/or operatively connected to the cover element, the storage device, and/or the transport element in the region of the second recess.

A feedwater sparger repair assembly includes a cover plate having a partial cylindrical shape and having a nozzle opening and a pair of bolt openings extending through the cover plate. A nozzle is attached to the cover plate and surrounds the nozzle opening. A pair of T-bolts extend through a respective one of the pair of bolt openings and each include a shank having a threaded portion extending from an exterior side of the cover plate and a partial cylindrical head portion disposed at an end of the shank on an interior side of the cover plate. A pair of nuts are engaged with the threaded portion of the pair of T-bolts. The feedwater sparger repair assembly is adapted to be mounted to an opening that is cut into a core spray pipe in order to repair/replace a sparger that becomes cracked.

A modular enclosure system and method for repair of one or more leaks in a pipe. The modular enclosure system including a first enclosure portion configured to be disposed in a mated configuration to create a first enclosure around the pipe. Each enclosure includes a first void section configured to enclose a pipe section of the pipe. Sealant grooves extend along enclosure faces of each enclosure to seal the modular enclosure system. Each enclosure includes a sealant control system having a plurality of blocking members and configured to selectively block sealant injected in the sealant grooves. Each of the blocking members are positionable between a blocking position configured to block sealant flow in at least one of the sealant grooves and a non-blocking position.

A modular enclosure system and method for repair of one or more leaks in a pipe. The modular enclosure system including a first enclosure portion configured to be disposed in a mated configuration to create a first enclosure around the pipe. Each enclosure includes a first void section configured to enclose a pipe section of the pipe. Sealant grooves extend along enclosure faces of each enclosure to seal the modular enclosure system. Each enclosure includes a sealant control system having a plurality of blocking members and configured to selectively block sealant injected in the sealant grooves. Each of the blocking members are positionable between a blocking position configured to block sealant flow in at least one of the sealant grooves and a non-blocking position.

An assembly for relining a junction between a branch pipeline and a main pipeline comprises a seal installation device capable of moving within the main pipeline to the junction. The seal installation device includes a curable seal for being placed and pressed onto the junction and optionally for extending into the branch pipeline. The assembly further comprises a light curing device for being introduced into the seal installation device within the main pipeline and the branch pipeline for curing the seal.

An assembly for relining a junction between a branch pipeline and a main pipeline comprises a seal installation device capable of moving within the main pipeline to the junction. The seal installation device includes a curable seal for being placed and pressed onto the junction and optionally for extending into the branch pipeline. The assembly further comprises a light curing device for being introduced into the seal installation device within the main pipeline and the branch pipeline for curing the seal.

A patch is provided and described that can be used with the installation of a cured-in-place structural liner in a conduit when the conduit has protrusions into the conduit. The patch is made with similar material to the liner, or felt, and is impregnated with epoxy. The patch may be shaped to more closely match the anticipated curve of the outer surface of the liner. Tools for the installation of the patches, a method of use, and tools for measuring the quality of the installation of the patch before the installation of the structural liner, are also described.

A patch is provided and described that can be used with the installation of a cured-in-place structural liner in a conduit when the conduit has protrusions into the conduit. The patch is made with similar material to the liner, or felt, and is impregnated with epoxy. The patch may be shaped to more closely match the anticipated curve of the outer surface of the liner. Tools for the installation of the patches, a method of use, and tools for measuring the quality of the installation of the patch before the installation of the structural liner, are also described.

The invention relates to a tubular liner for the rehabilitation of an, in particular, underground sewer pipe, comprising at least an inner tubular film, a resin-carrier layer surrounding the inner tubular film, and comprising a mechanically protective outer film system. The outer film system comprises at least one outer film in the form of a UV-radiation- and short-wavelength, visible light-absorbing and/or -reflecting, single-layer or multi-layer film which contains, in one or more polymer layers, at least one short-wavelength, visible light-absorbing and/or -reflecting, organic or inorganic color pigment or a corresponding dye, and at least one organic or inorganic compound which absorbs and/or reflects the UV radiation. Moreover, the outer film system comprises at least one mechanically stable reinforcing web which rests on the aforementioned outer film. The outer film system has a transmittance for visible light at at least one wavelength in the range of 550 nm to 800 nm of at least 1%. The invention also relates to a method for manufacturing such an outer film system and to such an outer film system itself.

A fitting element for use in rehabilitation of pipelines with a liner. The fitting element is a composite article of reinforcing fibers and a resin composition. A first part of the fitting element has reinforcing fibers and a substantially fully cured resin composition, and a second part has dry reinforcing fibers that can accept a curable resin composition that optionally originates from the liner to form a functional joint between the fitting element and the liner. An interface layer of the fitting element structurally connects the first and the second part. A method for manufacturing the fitting element, as well as a method for rehabilitation of a pipeline with a tubular liner and a joined assembly of the fitting element and a liner for use in rehabilitating a pipeline.