A connection assembly between two portions of a line including an inner conduit for transporting a cryogenic fluid, the assembly including two flanges which are respectively arranged at the ends of the line portions and which are configured to be held in contact with one another by virtue of a fixing arrangement. The contact zone between the two flanges includes at least two grooves for positioning seals and at least one conduit opening out, for the one part, between the two seals and, for the other part, into an expansion chamber for the cryogenic fluid. The expansion chamber is arranged in one, or in the vicinity of one, of the first connection flange and the second connection flange. The expansion chamber includes a detector for detecting the presence of the cryogenic fluid in the expansion chamber or a recess configured for the installation of such a detector.

A double wall tube assembly includes an inner tube extending in an axial direction between two opposed ends of the inner tube. A sleeve fitting is mounted to one end of the inner tube. An outer tube outboard of the inner tube extends in the axial direction between two opposed ends of the outer tube. A collar fitting is mounted to one end of the outer tube wherein the collar fitting is outboard of the sleeve fitting.

A metal-to-metal sealing system is described for forming a pressure-activated connection between two pieces of equipment under HPHT (high pressure high temperature) conditions which will degrade elastomers. The roughly cylindrical seal comprises four sealing surfaces, two sealing surfaces formed by the circular longitudinal edge, and two sealing surfaces formed by either side of a bulge located halfway along the outer diameter. These surfaces correspond with sealing surfaces on the pieces of equipment to be joined. These pieces of equipment also utilize testing ports in fluid communication with the seal in order to ensure a secure connection.

A gasket is for an annular compact flange. The compact flange includes two joinable flange halves which are formed with contact surfaces facing each other, and at least one of the flange halves having an axial, centric bore. An annular gasket groove is arranged in each of the flange halves, which is arranged to sealingly receive a common gasket. The gasket groove has a proximal side and a distal side relative to the bore, the distal side, which is conical, forming a groove sealing surface against the gasket. The gasket, which seals at the groove sealing surface, is formed with a plate portion positioned between the contact surfaces.

A low point raceway fitting for draining accumulated condensation from electrical raceway systems installed in industrial, commercial and residential facilities. The drain fitting is a tubular member having a throughbore for pulling wire, connecting ends for installation in a raceway system, and an enlarged section between the ends profiled for engagement by a tool for installation. A drain passage is formed radially through the tool engaging section and is positioned at the underside of the horizontal fitting for gravity drainage. A screen insert can be placed in the drain passage to keep dirt and insects out.

A sealing assembly for flanges is described. The sealing assembly includes a wedge, a first sealing element, a second sealing element, and a fastener. The wedge has a first surface, a second surface, and a third surface. The first surface defines a pressure void with a first flange and a second flange. The first sealing element engages the second surface of the wedge and the first flange. The second sealing element engages the third surface of the wedge and the second flange. The fastener couples the first sealing element, the first flange, the second flange, and the second sealing element together. The wedge slides toward the sealing elements responsive to a pressure increase in the pressure void. The sealing elements force the flanges toward each other responsive to the wedge sliding toward the first sealing element and the second sealing element.

The present invention relates to a device 100 for connecting a gas-conducting conduit element 1, in particular a hydrogen-conducting conduit element, to a counterpart 2, in particular a component, comprising: at least one screw body 10, which is configured to be brought into tight engagement, in particular into gas-tight engagement, with the counterpart 2; a first seal 3, which is in the form of a valve body 3a which is configured to be brought into contact, in particular into gas-tight contact, with a valve seat 4 provided on the counterpart 2, or which is in the form of a flat seal; and a second seal 5 which operates on a sealing effect principle according to which the sealing effect is exerted or deployed irrespective of an axial displacement, in particular in an installation direction E, which is necessary for creating the sealing effect of the first seal 3.

A sealing system for establishing real time sealing between two flange members is provided. The sealing system includes a seal assembly disposed between the flange members. The seal assembly includes an o-ring seal component held between an outer seal component and an inner seal component. A clamp body including a first clamp arm and a second clamp arm receive the flange members and the seal assembly positioned between the flange members. A coupling device of the sealing system is used to apply torque to clamp arms to draw them each other resulting biasing the flange member toward each other to establish sealing. Each of the clamp arms includes at least one window opening to expose a portion of outer seal component that includes an indicator configured for displaying an identification feature of the o-ring seal component of the sealing assembly.

A connector for a pipeline, in particular for conveying hydrocarbons, extends along a longitudinal axis and has a gripping portion configured to be fitted around and clamped to the outer face; a sleeve portion, which is mounted in sliding manner to the gripping portion; a metal front gasket configured to be placed between the front end face and a face of the sleeve portion; and linear actuators connected with the gripping portion and the sleeve portion to axially compress the metal front gasket between the front end face of the pipeline and the face of the sleeve portion.

A sealing assembly for flanges is described. The sealing assembly includes a wedge, a first sealing element, a second sealing element, and a fastener. The wedge has a first surface, a second surface, and a third surface. The first surface defines a pressure void with a first flange and a second flange. The first sealing element engages the second surface of the wedge and the first flange. The second sealing element engages the third surface of the wedge and the second flange. The fastener couples the first sealing element, the first flange, the second flange, and the second sealing element together. The wedge slides toward the sealing elements responsive to a pressure increase in the pressure void. The sealing elements force the flanges toward each other responsive to the wedge sliding toward the first sealing element and the second sealing element.