Methods and apparatus for making lined pipelines in which pipes are joined together by attaching fittings at their ends and joining the fittings together. Within the joint there is a fit-up sleeve which forces liners against respective fittings and provides corresponding seals. Other seals can be provided by inserting sealing rings which force different portions of the liners against different portions of the fittings. The fit-up sleeve and sealing rings may force the liners against castellations which prevent movement of the liners. The fit-up sleeve may cooperate with insertion rims on the fittings to provide very accurate spacing, or touching edges which can be desirable if automatic welding is employed. The seals provided by the fit-up sleeve also eliminate backdraughts and assist welding operations. Furthermore, the fit-up sleeve permits pigging through the pipe joint and therefore along the length of the resulting lined pipeline. It is foreseen that the need for CRA components and CRA welding can be largely if not wholly dispensed with.

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.

A sealing compression ring apparatus couplable to a liner and a pipe component has an annular body and a bore, with a first side including a raised outer edge portion, a recessed annular portion between the raised outer edge portion and the bore, and an o-ring gland encircling the bore on the recessed annular portion. A pipe assembly has a base pipe including a flange, a liner extending axially within the base pipe and extending radially out and over a portion of the flange to define a liner flange, an opposite flange surface, and a sealing compression ring apparatus compressed between the flange and the opposite flange surface, and an o-ring positioned in the o-ring gland of the ring.

A hose liner is provided for preventing contamination of a hose. The liner includes an intermediate section with a passageway therethrough. The intermediate section extends through the length of the hose to line an interior surface of the hose. The liner also includes a first end section extending from a first end of the intermediate section. The first end section includes an opening and a securing mechanism for selectively securing the first end section to a first end of the hose. The line also includes a second end section extending from a second end of the intermediate section. The second end section includes an opening and a securing mechanism for selectively securing the second end section to a second end of the hose.

The invention relates to a plug connection between two tubular workpieces (1, 2) which are made of concrete and each of which has an inner liner (5) made of plastic, one of which forms a tip end (3) and the other a socket end (4) receiving the tip end (3), wherein the inner liners (5) have circumferential sealing flanges (12) which cover the end face (13) of the tip end (3) or the socket face (14) and wherein a joint seal (16) is provided between the sealing flanges (12). In order to provide advantageous structural conditions, it is proposed that the inner liners (5) are provided with a circumferential elastomer angled profiled section (8, 9) at the end face, which receives the circumferential edge of the inner liner (5) in an end-face profiled groove (11) of its axially parallel limb (10) and whose limb at a right angle to the axis forms the sealing flange (12).

A system for protecting an equipment surface during manufacture, fabrication, transport, storage, and installation of equipment. The system comprises a surface cover to mechanically protect machined surfaces, as well as hermetically sealing any covered openings. An impact absorbing cover with a deforming layer can be attached with a fastener to provide further impact protection for the equipment surface. A coating comprising a solvent, a corrosion inhibitor, and, optionally, a lubricant can be used to protect the equipment surface. The system has the benefit of being lightweight to allow for easy handling and shipping, is safer to use than other methods known in the art and has the coincident benefit of protecting larger systems that equipment is a component of from both corrosion and contaminants.

A hose liner is provided for preventing contamination of a hose. The liner includes an intermediate section with a passageway therethrough. The intermediate section extends through the length of the hose to line an interior surface of the hose. The liner also includes a first end section extending from a first end of the intermediate section. The first end section includes an opening and a securing mechanism for selectively securing the first end section to a first end of the hose. The line also includes a second end section extending from a second end of the intermediate section. The second end section includes an opening and a securing mechanism for selectively securing the second end section to a second end of the hose.

A method for producing a steel underwater pipe for carrying a corrosive fluid, includes the successive steps: applying a layer of corrosion-resistant steel alloy on a terminal part of the internal wall of each pipe element from its end to be welded; the application of a plastic coating, on the internal wall of each pipe element; covering only a first part of the layer of metal alloy, a terminal part of the layer of metal ally on the side of the end to be welded of each pipe element not being covered by the plastic coating; the coaxial insertion and the crimping of a compression ring against the terminal part of the plastic coating; and the assembly by welding directly together the ends of two pipe elements by a corrosion-resistant steel alloy weld.

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.

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.