A connector for a process tube, comprising an annular body; an engagement bore formed in the annular body, for receiving an end of the process tube; a sealing groove formed in the engagement bore, for receiving at least two annular gaskets for contacting the end of the process tube; wherein the annular body comprises a sealing port fluidly connected with the sealing groove so as to allow applying a gas pressure in the sealing groove between the at least two annular gaskets.

The present application discloses methods and apparatus for installing fitting components, such as a conduit gripping device, on a conduit to form an assembly. The assembly is joinable with at least one other fitting component to form a fitting. The present application also discloses methods and apparatus for evaluating characteristics of components of a mechanically attached connection. Characteristics that may be evaluated include, but are not limited to, the position of a conduit gripping device on a conduit, an amount of axial compression or stroke of the conduit gripping device, an amount of clamping force applied to the conduit gripping device as the conduit gripping device is compressed, and an amount of torque applied to members that compresses the conduit gripping device.

The present application discloses methods and apparatus for installing fitting components, such as a conduit gripping device, on a conduit to form an assembly. The assembly is joinable with at least one other fitting component to form a fitting. The present application also discloses methods and apparatus for evaluating characteristics of components of a mechanically attached connection. Characteristics that may be evaluated include, but are not limited to, the position of a conduit gripping device on a conduit, an amount of axial compression or stroke of the conduit gripping device, an amount of clamping force applied to the conduit gripping device as the conduit gripping device is compressed, and an amount of torque applied to members that compresses the conduit gripping device.

Disclosed herein is a bladder that may be configured as a supply bladder and as a discharge bladder in a fluid coupler. The bladder may comprise at least one overtube having a lumen in which is positioned a catheter, which may include a fluid passage portion and an inflation portion, wherein the overtube has a first securing edge and a second securing edge, at least one gland nut to be secured to the first securing edge of the overtube, the gland unit may be tightened internally to the first securing edge of the overtube, a cord grip located with the gland unit when the gland nut is secured to the first secured edge, at least one sealing coupler ring to be secured to the second securing edge of the overtube, at least one bladder insert for creating a seal between the overtube and the sealing coupler ring within the catheter, and a plurality of O-rings to be secured inside the sealing coupler ring with a screw unit.

Disclosed herein is a bladder that may be configured as a supply bladder and as a discharge bladder in a fluid coupler. The bladder may comprise at least one overtube having a lumen in which is positioned a catheter, which may include a fluid passage portion and an inflation portion, wherein the overtube has a first securing edge and a second securing edge, at least one gland nut to be secured to the first securing edge of the overtube, the gland unit may be tightened internally to the first securing edge of the overtube, a cord grip located with the gland unit when the gland nut is secured to the first secured edge, at least one sealing coupler ring to be secured to the second securing edge of the overtube, at least one bladder insert for creating a seal between the overtube and the sealing coupler ring within the catheter, and a plurality of O-rings to be secured inside the sealing coupler ring with a screw unit.

A compliant heating system includes a dynamic component including a heat exchanger; a pressure vessel shell encompassing at least a portion of the heat exchanger; and a compressive seal expansion that connects the dynamic component and the pressure vessel shell.

In an embodiment, a receptacle for hydrogen charging of a fuel cell vehicle capable of reliably maintaining seal with a charging nozzle during rapid hydrogen charging, wherein the receptacle includes a body including a nozzle insertion portion configured for a nozzle tip of the charging nozzle to be inserted therein, a filter space portion having installed therein a filter, and a passage space portion provided between the nozzle insertion portion and the filter space portion; and a sealing device having a spring and seal member, configured to seal between a tip end portion of the nozzle tip and an inner side surface of an extended space portion by being installed in the extended space portion extended in a radial direction centered on the tip end portion of the nozzle tip which has passed through the nozzle insertion portion and entered the passage space portion.

An annular gasket includes an annular body; an annular body; a pair of sealing ribs each extending substantially radially inwardly from the annular body and having an innermost radial extent; and at least one center rib extending substantially radially inwardly from the annular body, the at least one center rib having an innermost radial extent closer to the annular body than the innermost radial extent of each of the pair of sealing ribs.

A conduit coupling assembly having an arcuate middle ring extending axially between first and second arcuate clamp rings, an arcuate gasket configured to be positioned radially between the first clamp ring and the fluid conduit, the middle ring comprising an outwardly extending annular flange disposed axially between and radially overlapping at least a portion of the first clamp ring and at least a portion the gasket, the annular flange comprising an axially extending retention rim axially overlapping and disposed radially between a first retained portion of the gasket and an opposed portion of the first clamp ring, the retention rim and the gasket forming a gasket retaining element restraining radial movement of a side surface of the gasket relative to the annular flange of the middle ring.

The present application discloses methods and apparatus for installing fitting components, such as a conduit gripping device, on a conduit to form an assembly. The assembly is joinable with at least one other fitting component to form a fitting. The present application also discloses methods and apparatus for evaluating characteristics of components of a mechanically attached connection. Characteristics that may be evaluated include, but are not limited to, the position of a conduit gripping device on a conduit, an amount of axial compression or stroke of the conduit gripping device, an amount of clamping force applied to the conduit gripping device as the conduit gripping device is compressed, and an amount of torque applied to members that compresses the conduit gripping device.