A fitting connectable to an end portion of a pipe generally includes a tubular insert member configured to be received at least partly within the end portion of the pipe, and a retention member coupled to the insert member and configured to be received at least partly within the end portion of the pipe. The retention member operates in conjunction with the insert member to engage the end portion of the pipe and impart an increased force against an inner wall of the pipe in response to forces tending to separate the fitting from the end portion of the pipe. The insert member includes a plurality of reinforcement ribs formed on its inner surface which provide support to the insert member and help prevent damage thereto from transverse bending forces applied during installation.

A tailor-layered tube, includes an inner tube, an outer tube having a greater diameter than the inner tube and disposed outside the inner tube, and at least one intermediate tube disposed between the inner tube and the outer tube and having a length different from the inner tube and the outer tube to be locally disposed between the inner tube and the outer tube. The inner tube, the intermediate tube, and the outer tube are hydroformed in a state of being laminated so that the inner tube, the intermediate tube, and the outer tube are sequentially brought into close contact with each other in a region where the intermediate tube is disposed and the inner tube is brought into direct contact with the outer tube in a region where the intermediate tube does not exist, and accordingly regions having locally different thicknesses are successively arranged.

A tailor-layered tube, includes an inner tube, an outer tube having a greater diameter than the inner tube and disposed outside the inner tube, and at least one intermediate tube disposed between the inner tube and the outer tube and having a length different from the inner tube and the outer tube to be locally disposed between the inner tube and the outer tube. The inner tube, the intermediate tube, and the outer tube are hydroformed in a state of being laminated so that the inner tube, the intermediate tube, and the outer tube are sequentially brought into close contact with each other in a region where the intermediate tube is disposed and the inner tube is brought into direct contact with the outer tube in a region where the intermediate tube does not exist, and accordingly regions having locally different thicknesses are successively arranged.

Methods and apparatuses for additively manufactured tubular passages, additively manufactured manifolds, and additively manufactured heaters are provided.

A method for providing a fluid supply conduit configured to pass through a constrained environment, including providing a circular section tube of appropriate dimensions, die stamping the circular section tube so as to obtain an oblong section tube of oval section, providing a plurality of external stiffeners of hollowed out shape adapted to the external dimensions of the oblong section tube, assembling the external stiffeners around a portion of the section of the oblong section tube.

A composite fluid conduit assembly with a fluid conduit having a wall defining a fluid flow path is disclosed. The wall has an inner region and an outer region. The outer region includes a composite material having reinforcing elements within a matrix material and the inner region having a material which is substantially devoid of reinforcing elements. The inner region of the wall defines a first sealing surface around the fluid flow path at one end of the fluid conduit. The composite fluid conduit assembly has an interface member substantially devoid of reinforcing elements and located at the end of the fluid conduit. The interface member defines an aperture in fluid flow communication with the fluid flow path and a second sealing surface. A compression arrangement forces the interface member and the fluid conduit together forming a seal around the fluid flow path between the first and second sealing surfaces.

A thin wall pipe for fluid transfer including a body having a thin wall, a first end configured to be connected with another pipe or tube or element for fluid transfer, wherein the first end of the pipe includes a hem which is at least double folded so that the pipe end has a triple thickness.

A thin wall pipe for fluid transfer including a body having a thin wall, a first end configured to be connected with another pipe or tube or element for fluid transfer, wherein the first end of the pipe includes a hem which is at least double folded so that the pipe end has a triple thickness.

A gooseneck (100) and a power swivel (10) including a gooseneck (100) are disclosed. In an embodiment, the gooseneck includes an inlet section (120) including an inlet (124) and a first fluid flow path (170) extending from the inlet. In addition, the gooseneck includes an outlet section (150) coupled to the inlet section. The outlet section includes an outlet (156). In addition, the outlet section (150) includes a second fluid flow path (160) extending axially from the outlet. The second fluid flow path is in fluid communication with the first fluid flow path. Further, the outlet section includes a radially outer surface (150c) that includes a first polygonal section having a plurality of planar surfaces (166) joined at a plurality of corners (168).

A method for producing a pre-insulated pipe, comprising inserting a length of jacket pipe (10) into a guide channel (110) having a front end (111) and a rear end (112); fixing said length of jacket pipe (10) in said guide channel (110); providing a first end (21) of a length of insulated inner piping (20), said length of insulated inner piping comprising a length of inner pipe surrounded by at least one layer of compressible insulation material (26); inserting, at said front end of said guide channel, into said length of jacket pipe, said first end of said length of insulated inner piping (20); applying an overpressure at least in an interior of said length of jacket pipe (10), around the inserted first end of the length of insulated inner piping (20); and moving said first end of said length of insulated inner piping (20) to said rear end of said guide channel (110); wherein said overpressure is such that said at least one layer of insulation material (26) is radially compressed; removing said overpressure to fix said length of insulated inner piping (20) in said length of jacket pipe (10) in order to form a pre-insulated pipe.