Abstract: A valve assembly including a probe having a first fluid exit; a socket for receiving the probe and having a second fluid exit. The probe and socket are moveable along a coupling axis to open and close the valve assembly. The valve assembly includes a closing member arranged relative to one of the fluid exits and so as to move between an open position and a closed position, wherein in the open position, the closing member does not obstruct said fluid exit and in the closed position, the closing member seals said exit, and a securing means is arranged to secure and release the closing member relative to the probe or socket of the other exit. The movement of the securing means is controlled by a cam and follower arrangement.

Abstract: A fluid coupling has a first part (100) sealed to a sealing surface of a second part (200), wherein the first part carries a sealing part (300) and the second part includes a gap (G) in the sealing surface, across which the sealing part is arranged to transition. A vent (210) is provided between the sealing surface and the gap. An aperture to the vent on the sealing surface is relatively small so that fluid pressure does not act to deform the seal as it crosses said aperture. Said aperture is spaced off-set from the gap on the sealing surface. The off-set provides a portion of sealing surface adjacent the gap and between the gap and aperture against which the seal can contact. The vent acts to allow fluid (400) to enter the gap before the seal starts to cross the gap and to therefore act to equalise pressure on either side of the seal.

Abstract: A valve assembly (10, 2) wherein movement of a first securing means (100) is guided by a cam (121, 122, 1252, 1254) and follower (120, 1244) arrangement in order to secure and release a probe (7, 1110) or socket (1210) relative to a closing member (14, 1130; 30, 1230), such as a sheath (14, 1130) or a piston (30, 1230), of the other of the probe (7, 1110) or socket (1210). The probe (7, 1110) and socket (1210) are coupled by relative movement in a coupling direction. Suitably, the probe (7, 1110) and socket (1210) each include a fluid passageway (8, 1120; 22, 1220) that is mated in use when the probe (7, 1110) is fully inserted into the socket (1210). Here, the fluid passageway (8, 1120) in the probe (7, 1110) has an exit (12, 1122) on a circumferential face of the probe (7, 1110) and the fluid passageway (22, 1220) in the socket (1210) has an exit (28, 1222) on a circumferential face of the socket (1210). Each closing member (14, 1130; 30, 1230) closes one of the apertures, i.e.

Abstract: A fluid coupling has a first part (100) sealed to a sealing surface of a second part (200), wherein the first part carries a sealing part (300) and the second part includes a gap (G) in the sealing surface, across which the sealing part is arranged to transition. A vent (210) is provided between the sealing surface and the gap. An aperture to the vent on the sealing surface is relatively small so that fluid pressure does not act to deform the seal as it crosses said aperture. Said aperture is spaced off-set from the gap on the sealing surface. The off-set provides a portion of sealing surface adjacent the gap and between the gap and aperture against which the seal can contact. The vent acts to allow fluid (400) to enter the gap before the seal starts to cross the gap and to therefore act to equalise pressure on either side of the seal.

Abstract: In the exemplary embodiments a shuttle (100) slides across a valve (20), which forms a coupling (10), from an open position to a closed position. In the open position, the shuttle (100) is arranged to allow fluid to pass through the valve. In the closed position the shuttle (100) is arranged to close the valve (1). The shuttle (100) carries a tablet (140) that is biased to move relative to the shuttle (100) to seal against a sealing surface and thereby plug the valve closed. In a one-way valve application, fluid pressure acts upon the side of the tablet to assist in urging the tablet against the sealing surface. Alternatively, surge protection can be provided by biasing the tablet to move towards the sealing surface against the fluid pressure. Combining two valves to form the coupling (10), the coupling can be arranged to be separated with the two valves closed.

Abstract: A tie back connector having a telescoping section wherein a distal end of the telescoping section is sealed to a detachable component by a compression clamp and the telescoping section is sealed by a tension clamp. The detachable component and a second component are coupled by extending the telescoping section of the second component to fill a gap between the detachable component and second component and sealing the detachable component to the second component using the compression clamp and sealing the telescoping section using the tension clamp.