The present disclosure relates to a liner arrangement for installing in a pipe structure, including at least one liner part configured for being inserted into the interior of the pipe structure and being shaped with smaller outer dimensions than the interior dimensions of the pipe structure The liner part is configured to cooperate with an inflatable bladder such that when the liner part and the inflatable bladder are located at the desired position and the bladder is inflated, the liner part will deploy or expand so that it conforms to the interior shape of the pipe structure. The liner arrangement furthermore includes a sealing arrangement extending along the circumference of the liner part and configured for sealing the liner arrangement against the interior of the pipe structure. The disclosure also relates to a method for relining a pipe structure.

A grouting material delivery and application system for coating the exterior of a collapsed liner with an even distribution of grouting material prior to insertion into a damaged conduit. The apparatus includes a wetout funnel for receiving grouting material to evenly coat the exterior of the liner. The wetout funnel includes opposite walls forming a v-shape with a slot at the bottom of the v-shape and a squeegee disposed at the slot for controlling the coating of grouting material for a uniform covering on the liner as it passes through the wetout funnel. A first ejector pipe having an inflow end and an outflow end for receiving and dispensing grouting material to coat one half of the exterior of the liner. A second ejector pipe having an inflow end and an outflow end for receiving and dispensing grouting material to coat the opposite half of the exterior of the liner.

A packer for pipe and sewer rehabilitation, including a front and a rear flange, between which an expandable sleeve which can be filled with a pressure medium is arranged, wherein the rear and the front flange have lead-through openings which are connected by a hollow lead-through element within the sleeve, so as to be sealed in relation to the sleeve, and through which a feed line to a camera arrangement that is arranged adjoining the lead-through opening in the front flange and that includes a camera is guided, wherein the camera arrangement includes an extension element which is bendable in a radial direction and at the front end of which the camera is arranged, wherein the extension element is assigned an adjusting device for setting the radial bending thereof.

The invention relates to composite sleeves for producing a cured in place pipe, to materials and methods for producing the composite sleeve, to methods for repairing a native pipe with the composite sleeve, and to improved cured in place pipes. The composite sleeve has multiple layers including a core layer of a curable one-part resin composition. The curable one-part resin composition is a solid material at 25° C. Preferably the resin composition is pliable at 25° C. so that it can be flexed during manufacturing and/or during installation in a native pipe.

A rehabilitation packer for pipe and sewer rehabilitation that includes a balloon-like expandable and tubular sleeve that can be pressurized with a pressurized medium. The sleeve is respectively sealed at both its ends with an end plug and has a peripheral lining insert at both its ends which limits an expansion of the sleeve. The respective lining insert has material recesses running in the axial direction and mutually peripherally spaced from each other starting from its peripherally sealed initial area which is adjacent to the respective end plug and insert extensions are configured between the material recesses. A sleeve for use in such a rehabilitation packer is also described.

A method of lining a branch area in a pipeline using an inflatable bladder. The method includes steps of preparing a branch liner with resin and positioning the branch liner in a pipeline, inflating the bladder and running a flow of air and steam through the bladder while monitoring its temperature. After curing of the resin, temperature of the liner is monitored and the bladder is removed only after proper cooling of the liner.

A compression apparatus (10) for compressing a tubular structure (12) to be formed into a hollow structure (20) such as a pipe comprises contact elements (60) arranged in two sets, (61, 62). The contact elements (60) are adapted to move along a compression section (41) in a coordinated sequence, whereby a portion (12a) of the tubular structure (12) within the compression section (41) is compressed between pairs (63) of opposed contact elements. The apparatus (10) includes registration means (110) for causing respective pairs (63) of opposed contact elements (60) to be maintained in registration with each other while moving along the compression section (41).

A method for rehabilitating a pipeline with a liner includes providing a coupling member to connect a liner to a pipeline element. A first alignment element is connected to an end of the host pipe and a second alignment element to an end of the coupling member to axially align both components. A length of the liner is provided through the pipe and the coupling member to expose a joining section of the liner outside the pipe. The coupling member is brought towards the pipe such that the first and second alignment elements mate and the joining section of the liner is received in the coupling member. The joining section of the liner is pressurized to engage an interior surface of the coupling member, and a curable resin composition of the liner is cured to form a functional joint between the coupling member and the liner joining section.

A method of lining a tube using a spoolable liner. The method includes: connecting a connector to a distal end of the spoolable liner; inserting the connector and spoolable liner into the tube and advancing the connector to a tube engagement point at an interior of the tube; forming a distal connection between the spoolable liner and the tube by attaching the connector to an engagement mechanism at the tube engagement point; establishing a proximal end of the spoolable liner; forming a proximal connection between the proximal end of the spoolable liner and the tube; plugging the spoolable liner with a deployable plug in a vicinity of the distal end; plugging the spoolable liner with a termination in a vicinity of the proximal end; and filling an interior area defined by an interior of the spoolable liner, the termination, and the deployable plug with a fluid such that the fluid expands the spoolable liner against an interior wall of the tube.

A liner for being cured by electromagnetic radiation having a wavelength in a curing range. The liner includes an outer portion. The outer portion includes a tube of impermeable material that is opaque to electromagnetic radiation having a wavelength in the curing range. An inner portion includes a tube of felt internally coated with an impermeable coating that is transparent to electromagnetic radiation having a wavelength in the curing range. The inner portion is inside the outer portion. A middle portion includes a tube of impregnable material between the inner and outer portions. Curable polymer that is curable by electromagnetic radiation having a wavelength in the curing range impregnates the felt and the impregnable material. Methods of manufacturing and installing the liner are also disclosed.