There is provided a tube coupling configured to connect and couple two tubes that are configured to cause a fluid to flow inside the two tubes. The tube coupling includes: a male connector including a first pipe configured to cause the fluid to flow inside the first pipe, and an insertion part having a protruding shape protruding in an axial direction that is an insertion direction; and a female connector including a second pipe configured to cause the fluid to flow inside the second pipe, and an insertion receiving part having a recessed shape recessed in the axial direction and coupled to the insertion part when the insertion part is inserted into the insertion receiving part. The insertion part includes a first spring, a first pressing member having a protruding shape, a first seal member having an annular shape, and a first outer peripheral member surrounding the first pressing member.

Disclosed herein are embodiments of a connector system for releasably connecting together tubes, for example medical tubing, and methods of making and using such a connector system, whereby the connector system includes a female coupler having a first passageway, a male coupler having a second passageway, a catch movably coupled to the female coupler, and a catch-receiving element coupled to the male coupler. The connector system further includes a release element movably coupled to the female coupler, whereby travel of the release element along or over a female coupler outer surface of the female coupler disengages the catch from the catch-receiving element to achieve a disconnected condition of the connector system. Further disclosed herein are embodiments of a connector system for releasably connecting together tubes, whereby the connector system includes at least one valve biased by a valve-biasing member disposed external to or outside of the fluid flow path.

Disclosed herein are embodiments of a connector system for releasably connecting together tubes, for example medical tubing, and methods of making and using such a connector system, whereby the connector system includes a female coupler having a first passageway, a male coupler having a second passageway, a catch movably coupled to the female coupler, and a catch-receiving element coupled to the male coupler. The connector system further includes a release element movably coupled to the female coupler, whereby travel of the release element along or over a female coupler outer surface of the female coupler disengages the catch from the catch-receiving element to achieve a disconnected condition of the connector system. Further disclosed herein are embodiments of a connector system for releasably connecting together tubes, whereby the connector system includes at least one valve biased by a valve-biasing member disposed external to or outside of the fluid flow path.

Some fluid coupling devices described herein are configured for use in fluid systems for purposes of providing a sterile connection for drug delivery. In some embodiments, the fluid coupling devices can be implemented as multi-use, sterile fluid coupling devices that are configured to reduce the likelihood of fluid spillage when being disconnected.

Some fluid coupling devices described herein are configured for use in fluid systems for purposes of providing a sterile connection for drug delivery. In some embodiments, the fluid coupling devices can be implemented as multi-use, sterile fluid coupling devices that are configured to reduce the likelihood of fluid spillage when being disconnected.

A female undersea hydraulic coupling member is equipped with a plurality of pressure-energized metal seals configured to seal between the body of the female member and the probe of a corresponding male hydraulic coupling member in response to ambient hydrostatic pressure and/or hydraulic fluid pressure. Pressure-energized metal seals may also be provided to seal between the body of the female coupling member and a removable seal retainer or seal cartridge. In one particular preferred embodiment, the pressure-energized seals are back-to-back metal C-seals separated by annular seal supports having a generally T-shaped cross section and retained on one or more shoulders in the body of the female member by a removable seal cartridge.

A fluid connector for removably joining two lines includes a male element and a complementary female element, which each include a body defining an inner passage and an outer passage, a male drawer, which is axially movable inside the outer passage between an uncoupled position of the connector, where it tightly closes off a distal mouth of the outer passage, and a coupled position, where it does not oppose the passage of fluid in the mouth and wherein the male or female body delimits a connecting passage between the outer passage of the female element and the outer passage of the male element during the coupling of the elements and which connecting passage extends between at least one distal opening and at least one proximal opening, which each emerge in one or the other of the outer passages.

A fluid connector for removably joining two lines includes a male element and a complementary female element, which each include a body defining an inner passage and an outer passage, a male drawer, which is axially movable inside the outer passage between an uncoupled position of the connector, where it tightly closes off a distal mouth of the outer passage, and a coupled position, where it does not oppose the passage of fluid in the mouth and wherein the male or female body delimits a connecting passage between the outer passage of the female element and the outer passage of the male element during the coupling of the elements and which connecting passage extends between at least one distal opening and at least one proximal opening, which each emerge in one or the other of the outer passages.

The present invention relates broadly and separately to a flow control valve and a float control valve assembly for use in the refilling of storage vessels, particularly fuel tanks. The invention also relates generally to a vessel overfill protection system. The flow control valve comprises a valve body defining a fluid passageway disposed between a fluid inlet and a fluid outlet and a piston assembly located at least in part within the fluid passageway. The piston assembly includes a piston support to which a piston is slidably mounted for opening and closure of the fluid outlet. The piston support includes at least one fluid sampling passage arranged to provide pressurised fluid from the fluid inlet to an upstream surface of the piston which is urged for opening of the fluid outlet to permit flow of fluid through the fluid passageway. The float control valve assembly includes a float assembly body adapted to mount within a vessel to be filled with fluid via the flow control valve. The float control valve includes a pilot valve and a pilot control passage in fluid communication with the flow control valve. The pilot valve is operatively coupled to a float member for closure of the pilot control passage on flooding of the float housing to promote closure of the flow control valve.

This quick coupling (R) element (100) comprises a tubular body (102), defining an inner channel (C100) for the passage of a pressurized fluid and a longitudinal axis (X100), means (104, 116, 124) for closing off the inner channel on the side of a front face (108) and a relief member (124) of the inner channel (C100), movable between a first position, in which it closes off a relief passage connecting the inner channel to the outside of the body, and a second forward position, in which it does not close off this relief passage. The relief member is a ring (124) that is part of the means for closing off the inner channel and that is mounted movable between its two positions around a central member (116), which is also part of the closing off means, and inside a peripheral part (104), a first surface of the relief ring is part of the front face (108). The relief ring (124) defines, at least in part, the relief passage with the central member (116) or with the peripheral part (104). In its first position, the relief ring (124) bears sealably against the central member (116), over a first sealing circumference, and bears sealably against the peripheral part (104), over a second sealing circumference. A minimum diameter of the second sealing circumference is strictly larger than a maximum diameter of the first sealing circumference. The coupling element (100) comprises an elastic return member for returning the relief ring (124) toward its first position. This member pushes the relief ring back toward the inside of the tubular body (102) and/or toward the rear of the coupling element (100).