A process and system is provided to allow rehabilitation of asbestos concrete (AC) pipe to remain in place while rendering the AC pipe harmless, in a manner that protects the ecosystem and saves huge amounts of money lost to bypass, digging, remediation and disposal. The method and system provide for encapsulation of the old AC pipe in place without any digging or disruption to the surrounding area. No dewatering is required, saving the costs required with dewatering. There is minimal disruption to the community's use of the piping system while completing the repair, as such repairs can be done on a manhole-to-manhole basis. Finally, there are no hazardous material disposal requirements, or the costs associated therewith.

A pipe liner for lining a fluid-carrying pipe, the pipe liner comprising an elongated flexible conduit and a flexible flange. The flexible conduit includes an outer wall forming an open-ended central channel for allowing fluids to be pumped therethrough. The flexible flange extends radially from one end of the elongated conduit and includes a number of fastener holes. The flexible conduit and the flexible flange are configured to be collapsed and pulled through the pipe such that the flexible flange can be connected to a rigid flange of the pipe via the fastener holes. The pipe liner is less prone to leak and is easier to transport and install.

Conduit system for conveying fluids is described. The conduit system comprises a conduit, a tubular, and a sealing component. The tubular is positioned radially interior of an inner surface of the conduit along a length. The tubular comprises a polymeric material. The sealing component is positioned proximate the distal end of the tubular in an annulus formed between an outer surface of the tubular and the inner surface of the conduit, the sealing component constructed and arranged to seal the annulus. Methods for reducing corrosion of or providing pressure integrity to a conduit are also described.

Systems, methods, and apparatus are provided for using a sweep gas to collect and recover leaked gas. In some embodiments, Helium or Hydrogen is stored in an inner conduit. As light Helium or Hydrogen leaks through the inner conduit, a sweep gas flows through an annular space between the inner conduit and an outer conduit to collect the Helium or Hydrogen. Then, the Helium or Hydrogen is separated from the rest of the sweep gas where the Helium or Hydrogen can be stored again or distributed and sold. In other embodiments, the annular space is between a liner and a steel pipe, and a sweep gas through the annular space protects the steel pipe from Hydrogen that leaks from the liner into the annular space. The embodiments described herein greatly lower the cost for storing or transporting gas such as Helium or Hydrogen at a much higher volume scale.

A CIPP liner reel system for managing the utilization and deployment of CIPP liners. The CIPP liner reel system generally includes a frame connected to a reel and drive unit. The drive unit is connected to the reel to control the rotation of its core. This core contains an opening that provides access to a connector unit within the core. This connector unit can be used to connect the reel to the end of a CIPP liner using a strap. Rotation of the core causes CIPP liner to wind on to or unwind from the reel. The reel may also contain a left guide member and a right guide member to assist in controlling the process of winding and unwinding the CIPP liner. The frame may also include a tractor connector that enables the CIPP liner reel system to be coupled to and transported by a tractor without affecting its operation.

A resin system for impregnating a liner element made of a resin-absorbing material for rehabilitating a pipeline. In addition, the invention relates to a method for lining a pipeline by means of a liner element of resin-absorbing material and a rehabilitation device for performing the method. The resin system according to the invention comprises three components (A), (B) and (C) wherein component (A) is a reactive resin, wherein component (B) is an additive, wherein component (C) comprises nanoscale bodies, and wherein component (C) can be excited by ultrasound, UV radiation or microwave radiation to trigger the curing of the resin system. In the method according to the invention and the rehabilitation device according to the invention, a mobile curing device is used, which is passed through the inverted liner element.

Methods and apparatus enable the integrity of a liner pipe to be quickly and effectively tested in the field, while permitting rapid removal and replacement of the liner pipe if it is compromised. The liner pipe is leak tested prior to reversion, after being pulled through a host pipe to be lined via a swaging die and while the liner pipe is still under tension. If the liner pipe exhibits a leak, it can be removed from the liner pipe immediately and, importantly, before it has expanded to contact the host pipe. Leak testing apparatus includes a packer, which seals the opposite end of the liner pipe from the end which is pulled, creating a contained fluid volume upon which the leak test is performed. The leak test may be a pressure test or a vacuum test or any other suitable test.

A process and system is provided to allow rehabilitation of asbestos concrete (AC) pipe to remain in place while rendering the AC pipe harmless, in a manner that protects the ecosystem and saves huge amounts of money lost to bypass, digging, remediation and disposal. The method and system provide for encapsulation of the old AC pipe in place without any digging or disruption to the surrounding area. No dewatering is required, saving the costs required with dewatering. There is minimal disruption to the community's use of the piping system while completing the repair, as such repairs can be done on a manhole-to-manhole basis. Finally, there are no hazardous material disposal requirements, or the costs associated therewith.

An expandable pipe for restoring a damaged pipe is provided. The expandable pipe includes a liner formed of thermoplastic polyurethane, and grout material applied to the exterior surface of the liner. The exterior surface includes a plurality of flared tips and grooves, and each groove is located between adjacent flared tips. The grout material is disposed on the flared tips and in the grooves of the liner. The method used to restore the damaged pipe includes clamping the liner with the grout material on a puller-sealer fixture having a U-shaped cross-section to prevent debris from entering the interior of the liner, and pulling the puller-sealer fixture and liner through the damaged pipe. The grout material expands in volume upon exposure to moisture, ultra violet radiation, heat, and/or ultrasonics, and fills cracks or other imperfections and voids along the interior surface of the conduit, caused by corrosion, erosion, or other circumstances.

A cable puller and a related method of use are provided. The cable puller includes a frame, a winch mounted to the frame, a frame mount and one or more redirection pulleys that guide a cable. The mount is mountable to an arm of a piece of equipment, e.g., excavator, backhoe, loader, etc., and configured to allow manipulation and tilting of the frame to align the redirection pulley at a level and orientation relative to an underground tubing that is to be decommissioned and/or replaced. A deflection plate can be joined with the frame forward of the pulley to protect the pulley if the cable draws a portion of the underground tubing toward it. A splitting wedge can be joined to the frame to fracture underground tubing drawn toward the plate or pulley. Related methods of use also are provided.