A repair system for repairing a polyolefin pipe containing a transitional film applied over and bonded to the pipe and a reinforcement system, applied over the transitional film. The transitional film has a first side adapted to bond to polyolefins and the reinforcement system contains a fiber-reinforced polyurethane system bonded to the second side of the transitional film. A system two polyolefin tubular members joined end-to-end containing two tubular members arranged such that their respective ends are adjacent, thereby defining a circumferential joint, a transitional film applied and bonded to the circumferential joint and at least a portion of the two tubular members, and a reinforcement system applied over the transitional film. The transitional film has a first side adapted to bond to polyolefins and the reinforcement system contains a fiber-reinforced polyurethane or a fiber-reinforced epoxy system bonded to the second side of the transitional film.

A lining element for the rehabilitation of a pipeline, the lining element having a substrate layer including a resin-absorbing material and a coating system, the coating system including a fluid-tight barrier layer system formed from several layers.

A method and a device for repairing portions of channels, including non-round channels, is provided by a wound tube wound from a profile strip by a winding machine, the abutting edges of which strip are formed into tight joints, locked inside the wound tube which can be introduced into the portion of the channel to be repaired. A plastic profile strip is drawn from a storage spool and fed to a winding machine arranged in front of one of the openings of the channel to be repaired, the winding machine having a guide rail adapted to the cross-portion of the channel, and adjacent edge regions fed onto this rotating winding former locked in an overlapping manner to form a wound pipe and the pipe is pushed or pulled into the channel portion.

A reinforcement strip (20) suitable for repairing a fluid transport pipe (10) during which the strip is wound, under traction, around the portion of the pipe where the repair needs to be made at the same time that a crosslinking resin is applied to the strip in such a way as to form a sleeve around the portion to be repaired. The reinforcement strip includes at least one integrated metal wire, the electrical properties of the wire being used for operations including crosslinking the resin, detecting the portion of the pipe that includes the sleeve or detecting repaired portions of the pipe that have increased in diameter due to a thinning of the wall of the pipe.

A pipe-liner system for use when lining a pipe interior features a pipe having a pipe opening end and a pipe interior wall. The system features a flexible, substantially-impermeable, elongate extender-tube and an evertable, flexible, elongate, tubular pipe-liner. The system features a substantially leak-proof pressure retaining closure-sleeve located on a pipe-liner second end. An extender-tube second end is attached to a pipe-liner first end via a substantially leak-proof connection there between. The combined extender-tube and the pipe-liner form a single continuous evertable tube, hereinafter referred to as an extended liner having the pressure retaining closure-sleeve enclosing an extended liner distal end. A length of the extender-tube and a length of the pipe-liner are each chosen so that the liner is caused to be accurately positioned within the pipe upon eversion.

A repair wrap for repairing or strengthening an item. The repair wrap includes a fabric, where the fabric includes one or more fibers. The repair wrap also includes a film disposed laterally within the fabric. The repair wrap further includes a hardening material disposed in the fabric. The fabric is configured to be wrapped around a portion of an item. Curing the hardening material is configured to form a shell about the portion of the item.

A repair wrap for repairing or strengthening an item. The repair wrap includes a fabric, where the fabric includes one or more fibers. The repair wrap also includes a film disposed laterally within the fabric. The repair wrap further includes a hardening material disposed in the fabric. The fabric is configured to be wrapped around a portion of an item. Curing the hardening material is configured to form a shell about the portion of the item.

The subject matter of the invention is a lining hose as a composite hose for lining a pressure pipe to be renovated, comprising at least one first layer and a second layer which adjoins the first layer, the first layer forming a substantially fluid-tight and/or gas-tight diffusion barrier and the second layer being a textile fabric soaked in a resin and being provided for an all-over adhesive connection to an inner wall of the pressure pipe to be renovated, the lining hose being flexible in a state in which the resin has not cured. The second layer is at least 3 mm thick, the textile fabric and the resin being selected such that the lining hose forms a self-supporting pipe in a state in which the resin has cured. The invention also relates to a method for renovating a pressure pipe using such a lining hose and a corresponding renovated pressure pipe.

A pipe fitting system, including a first pipe section with at least one male end, a second pipe section with at least one female end, and a connecting means for releasably connecting the pipe sections together such that the male end is at least partially received within the female end. The connecting means comprising releasably engageable first and second connectors associated with the first and second pipe sections respectively, wherein the first connector comprises at least one outwardly extending protrusion and wherein the second connector comprises corresponding recesses adapted to releasably receive the or each protrusion of the first connector. The pipe fitting system is suitable for applications such as end of line connections, repair/replacement of fixed existing pipes, and in enabling temporary removal of pipes for maintenance or access purposes.

A linking pin made of elastic plastic having linking pin halves is used to link segments in the longitudinal direction to assemble a rehabilitation pipe. The linking pin includes a tubular portion having on its outer periphery surface first and second protrusions separated by a distance of twice the thickness of the side plate of the segment and a rear protruding portion that enlarges in diameter due to elasticity. The linking pin is inserted into one segment and the other segment so that the side plates of both the segments come between the first and second protrusions. The linking pin is then enlarged in diameter due to elasticity to fit the side plates between the first and second protrusions and link both the segments in the longitudinal direction. The linking pin that is enlarged in diameter can be reduced in diameter to unlink both the segments.