A fluid circuit (160) defining a flow path for a fluid from a fluid supply (152) toward a process stage (156). The fluid circuit may include a plurality of operative components (168) including a body portion (182) and a plurality of tubing connector fittings (186). The operative components may be connected by a plurality of tubing segments (164). Each body portion may include a non-conductive fluoropolymer portion and an outer conductor (234) that extends between each of the plurality of tubing connector fittings and that is unitary with the non-conductive fluoropolymer portion. The plurality of tubing segments may include a non-conductive fluoropolymer tubing portion (187) and an axial strip (188) of conductive polymer. The outer conductor of each body portion conductively connected with tubing segments connected thereto. Each of the connectors may include a bridging component (262) for conductively connecting the respective outer conductor of the body portion to the strip of conductive polymer of the connecting tubing segments.

A resin tube fitting has: a body with an outer sleeve; an inner ring including an insert portion insertable into the outer sleeve to contact the outer sleeve radially, and a press-in portion configured to be pressed into a longitudinal end of the tube; and a union nut configured to be engageable with the body. The body and the inner ring are made of resin, which has a property of contracting in response to change in ambient temperature. A radial contraction rate of the outer sleeve of the body is designed to be higher by 0.09% or more than that of the insert portion of the inner ring.

A resin tube fitting has: a body with an outer sleeve; an inner ring including an insert portion insertable into the outer sleeve to contact the outer sleeve radially, and a press-in portion configured to be pressed into a longitudinal end of the tube; and a union nut configured to be engageable with the body. The body and the inner ring are made of resin, which has a property of contracting in response to change in ambient temperature. A radial contraction rate of the outer sleeve of the body is designed to be higher by 0.09% or more than that of the insert portion of the inner ring.

A pipe assembly (10) includes a composite pipe (12) having a composite material formed of at least a matrix material and a plurality of reinforcing elements embedded within the matrix material. The pipe assembly (10) further comprises a metallic pipe stub (14) secured to an end region of the composite pipe (12) and configured to support a connector (20) to permit the pipe assembly (10) to be secured to separate infrastructure.

A pipe assembly (10) includes a composite pipe (12) having a composite material formed of at least a matrix material and a plurality of reinforcing elements embedded within the matrix material. The pipe assembly (10) further comprises a metallic pipe stub (14) secured to an end region of the composite pipe (12) and configured to support a connector (20) to permit the pipe assembly (10) to be secured to separate infrastructure.

A tube assembly including a cross-linked polyethylene tube having a radial projection and a coupler, and a method for forming the tube assembly. A forming assembly is configured to dispose the radial projection of the cross-linked polyethylene tube through the coupler after the completion of the cross-linking process.

A fitting assembly for fluid device is provided, which can reduce space for installation of fluid devices. The assembly includes a first port, a second port, a first annular member, a second annular member, and a connector. The first port is annular and installed at a first fluid device to be connected with its first fluid channel. The second port is annular and installed at a second fluid device to be connected with its second fluid channel. The first annular member is installed at the first port and has a first coupler. The second annular member is installed at the second port and has a second coupler to be coupled with the first coupler to fix the second annular member to the first annular member. The connector is installed between the first port and the second port and seals gaps between the connector and the first and second ports.

A combined quick connector structure for fuel feed and return system may include a cover assembly; a lever mechanism along the inside walls of the fuel feed and fuel return openings of the cover assembly; a pawl and ratchet mechanism on either side of the cover assembly; a rib on either side of a connector assembly; the connector assembly with retainer elements for engine feed and engine return lines and fuel feed and return lines; actuator pads provided on the external and internal circumference of the openings of connector assembly; a locking mechanism on the inside circumference of the retainer elements for the fuel feed line and fuel return line; and a lever mechanism configured for hinging the cover assembly together with the connector assembly.

A hooked pipe coupling includes a first pipe coupling segment comprising a first arcuate body portion defining a first end and a second end opposite the first end, a first hook extending from the first end, and a first fastener lug extending from the second end, the first arcuate body portion defining a first sloped ledge surface; and a second pipe coupling segment comprising a second arcuate body portion defining a third end and a fourth end opposite the third end, a second hook extending from the third end, and a second fastener lug extending from the fourth end, the second arcuate body portion defining a second sloped ledge surface; wherein the first sloped ledge surface presses against the second sloped ledge surface in a tightened configuration of the hooked pipe coupling to prevent axial movement of the first pipe coupling segment relative to the second pipe coupling segment.

This disclosure provides electrostatic discharge (ESD) mitigation devices. In one or more embodiments, the electrostatic discharge (ESD) mitigation device is a tubing connector to connect two or more conductive tubing segments in a fluid circuit, the tubing connector including an electrically conductive connector body with two or more attachment portions, two or more attachment fittings, and a conductive bracket configured to attach and interface with the connector body to electrically connect the connector body to ground.