A pipe restrained joint seal and lock can include a ring that is continuous and annular. The ring can have an axis, a proximal end and a distal end axially spaced apart from the proximal end. A spline can extend from the ring to engage a spline groove of a tubular component. The spline can include one or more of the following features: a seal mounted to the distal end of the ring; the seal mounted to the ring axially distal of the spline; the seal mounted to the ring radially outward of the spline relative to the axis; and the seal mounted to the ring, the seal having a seal groove extending in a distal direction, and a portion of the ring is located in the seal groove.

A connection device for connecting a tubular connector to equipment comprises: a connection end fitting formed by a tubular body and a head mounted thereon, the head being provided with an opening leading into the tubular body and comprising a retaining groove; a flexible lock, which has an annular shape and is intended to be partially received in the retaining groove, the lock being provided with lugs extending radially toward the center of the lock, wherein the flexible lock is deformable and the lugs can close on the tubular connector and abut against the collar when the tubular connector is introduced into the connection end fitting; an unlocking ring having a collar for insertion into the connection end fitting, the collar including unlocking elements for interacting with the flexible lock to force the opening thereof when the unlocking ring is rotated.

A coupling system, in particular for tubular elements, with a socket element and a plug-in element, wherein a locking element is also provided, wherein the socket element has a tube-like receiving region for receiving the plug-in element, wherein the locking element has a securing element which is supported in the plugging-in direction against a securing mating element of the plug-in element and the locking element is supported with a locking device against a locking mating device on the socket element, and therefore the socket element and the plug-in element are secured axially indirectly via the locking element and thus via the securing element, the securing mating element and the locking device and the locking mating device.

A hydraulic tube connector for a vehicle may include a connector body including a first through-hole into which a tube having a tube protrusion protruding outward is inserted and a sealing O-ring groove which is formed at one side of the first through-hole, a sealing O-ring configured to be coupled to the sealing O-ring groove, and a release sleeve coupled to the connector body to prevent the sealing O-ring from being separated from the sealing O-ring groove.

A quick connect coupling having a housing with a throughbore to receive a tube. A verifier is mounted to the housing which nests in the housing when the coupling is fluidly connected. Otherwise, the verifier protrudes outwardly from the housing to provide an indication that the coupling is not fully connected.

A hydraulic tube connector for vehicle may include a connector body including a through hole into which a tube having a tube protrusion protruding outward is inserted, and a pair of guide grooves formed around the through hole and a coupling member configured to couple the tube with the through hole of the connector body, wherein the coupling member includes a tube coupling portion configured to surround the tube and a pair of coupling guides configured to be inserted into the pair of guide grooves.

A connector device for connecting to at least one component has a main body, a receiver and/or transmitter device arranged on the main body for receiving and/or transmitting signals and/or data, and a shielding device. The shielding device is arranged so as to be movable relative to the base body and has a shield for electromagnetic shielding of the receiver and/or transmitter device. The shielding device further includes a latch for latching the connector device with the component to be connected in a latching position, and a lock for securing the latch in the latching position. In the latching position, the receiver and/or transmitter device is not shielded by the shield.

A quick connector of a fuel transfer line is provided. The quick connector is fastened to a fuel inflow/outflow nipple of a fuel transfer line and includes a connector casing that has a rear end to which a fuel inflow/outflow nipple is inserted and fastened. Additionally, a bypass cylinder is inserted into a front end of the connector casing in a linearly movable manner by hydraulic pressure of fuel and forms a flow path for a selective flow of fuel depending on a location within the connector casing.

A joint unit is provided, including a main body, a bush, which is fastened to the main body in the axial direction and forms with the main body a receiving space intended to receive a connecting piece not forming part of the joint unit, and a retaining unit for interacting with the main body and the connecting piece. The bush and the retaining unit are formed together in one piece. A joint assembly is further provided, including a joint unit and a connecting piece.

A fitting for use in a manifold or other tubular assembly includes a core and at least one tubular coupling sleeve slidably and sealingly fitted over a distal end of the core to accommodate predetermined tolerances in the relative positions of fluid ports connected with the tubular assembly. Features are provided to limit the range of motion to the predetermined tolerances and to prevent disassembly of the coupling sleeve from the core of the fitting.