A wiring incorporated resin pipe includes a tubular shaped sheet formed in an approximately tubular shape at an interval so that a slit is formed between both ends in a transverse direction, a wiring unit arranged in the tubular shaped sheet along a longitudinal direction of the slit in an inner side of the slit and a resin material filled in a gap formed by matching surfaces of the slit of the tubular shaped sheet and the wiring unit to thereby seal the matching surfaces of the slit of the tubular shape sheet, in which conductive wires for wiring are laid inside the wiring unit in the longitudinal direction.

Articles, such as various operative components of a fluid delivery and storage system, incorporating a composite including a fluoropolymer matrix having regions of perfluorinated distributed within the matrix into their construction. The tubing and various operative components incorporating the composite are electrostatic dissipative in nature having a surface resistivity ranging from between 110.sup.4 ohms/square and 110.sup.12 ohms/square.

A pipe assembly comprising a composite pipe, and end connector provided at an end of the pipe, and means for providing a visual indication of impact damage to the pipe, the means for providing a visual indication of impact damage to the pipe comprising a thin sleeve mounted around, but spaced from, a pipe body of the composite pipe, whereby at each end of the pipe body, the pipe body, the sleeve and the end connector are preferably sealingly fitted together, and wherein the sleeve is configured to provide a visual indication indicative of an impact acting on the sleeve even if the impact does not reach the pipe body.

A multi-cylindrical structure supply pipe includes at least three concentric pipes that couple a stationary fuel cell system that is stationary and an in-vehicle fuel cell system mounted on a fuel cell vehicle. The at least three concentric pipes include a hydrogen supply pipe, a liquid circulation pipe, and an electric wire pipe. The hydrogen supply pipe is configured to allow hydrogen gas to flow through the hydrogen supply pipe. The liquid circulation pipe surrounds an outer periphery of the hydrogen supply pipe. The liquid circulation pipe is configured to allow liquid to flow through the liquid circulation pipe outside the hydrogen supply pipe. The electric wire pipe surrounds an outer periphery of the liquid circulation pipe. The electric wire pipe is provided with one or more electric wires outside the liquid circulation pipe.

The invention relates to a conductive article such as a pipe or a container, wherein the article is made from a composite material comprising from 50 to 99 wt % of a first polyethylene resin having an HLMI ranging from 1 to 50 g/10 min, a melt index MI2 of at most 0.45 g/10 min, and a density ranging from 0.920 g/cm.sup.3 to 0.980 g/cm.sup.3; from 0.2 to 10 wt % of carbon particles selected from nanographene, carbon nanotubes (CNT) or any combination thereof; and from 0.01 to 5.0 wt % of one or more processing aids. The conductive article has a surface resistivity of at most 1.10.sup.6 ohm/sq as determined according to silver ink method. The invention also relates to a process to produce such conductive article.

Disclosed herein is a pipe assembly containing a pipe, an insulating jacket coupled to the pipe via an attachment base; and a tracer wire within the insulating jacket. The width of the attachment base is greater than width of the insulating jacket. Also disclosed herein are methods of locating a pipe concealed below a ground surface, and detecting the presence and the position of a leak in a pipe concealed below a ground surface.

A fluid circuit includes a plurality of tubing segments and a plurality of operative components. Each tubing segment includes i) a non-conductive polymer portion defining a fluid passageway and ii) one or more interior conductive fluoropolymer stripes extending axially to the ends of each of the respective tubing segments. Each operative component includes a conductive fluoropolymer that extends between a plurality of tubing connector fittings forming a part of the fluid circuit, wherein each of the tubing connector fittings conductively connect the respective conductor of the operative component to the interior conductive fluoropolymer stripes of the tubing segment to provide a path to ground that extends through each operative component and each tubing segment.

Disclosed herein is a pipe assembly containing a pipe, an insulating jacket coupled to the pipe via an attachment base; and a tracer wire within the insulating jacket. The width of the attachment base is greater than width of the insulating jacket. Also disclosed herein are methods of locating a pipe concealed below a ground surface, and detecting the presence and the position of a leak in a pipe concealed below a ground surface.

A central body for a hydraulic system for fluid, including a frame having a first tubular end for connecting an upstream hydraulic circuit including a first fitting, and a second tubular end for connecting a downstream hydraulic circuit including a second fitting, the central body including a passage passing through the frame in order to convey the fluid coming from the upstream hydraulic circuit to the downstream hydraulic circuit, the frame being produced from an electrically insulating material, the central body including a printed circuit having controlled electrical properties in order to conduct a part of the electrical charges flowing in the upstream hydraulic circuit and the downstream hydraulic circuit.

The proposed technology relates to a system (8) for preventing microbiological growth in a conduit conveying a liquid. The system (8) comprises a multi-layered pipe (10) constituting said conduit and having an inner layer (12) that covers the complete inside (16) of the pipe (10) and is formed of an electrically conductive polymer material. A liquid in the pipe (10) is in direct contact with the inner layer (12). The system further has a first electrical connector (18) and a second electrical connector (19) connecting to the inner layer (12) from outside the pipe (10), wherein the first electric connector (18) and the second electric connector (19) are spaced apart along the pipe (10). The system further has an electric power source (20) operationally connected to the first electrical connector (18) and the second electrical connector (19) and configured for supplying an electric current to the inner layer (12).