A coupling arrangement (100) for connecting thermally insulated, fluid-conducting lines (102, 104) has a coupling (101) comprising a first coupling part (106) and a second coupling part (108), and connecting means (110) for connecting the two coupling parts (106, 108). A covering (112) surrounding the coupling (101) is provided, which covering, on both sides of the coupling (101), in each case lies against the thermal insulation of the fluid-conducting lines (102, 104). A cavity (114) formed by the covering (112) is configured for thermal insulation between the coupling (101) and the exterior of the covering (112).

A breakaway coupling for connecting two fluid lines, comprising a first coupling part (3) which can be connected to the first fluid line and a second coupling part (4) which can be connected to the second fluid line. The coupling parts (3, 4) can be disconnected from one another by way of a defined disconnecting force, wherein at least one of the coupling parts (3, 4) has an outflow prevention valve (20) with a valve seat (21) and with a sealing body (14) which is configured for interaction with the valve seat (21). The outflow prevention valve (20) has a hold-open element (16) which is configured to enable a passage of the fluid in the joined-together state of the coupling parts (3, 4). The outflow prevention valve (20) is configured to prevent an outflow of the fluid from at least one of the fluid lines in the disconnected state of the coupling parts (3, 4). The breakaway coupling has an anti-rotation safeguard which, during operation of the coupling, prevents a rotation of the first coupling part (3) and the second coupling part (4) with respect to one another. According to the invention, the valve seat (21) has a bearing surface (24) for the sealing body (14), wherein a compensatory element (25) is arranged in the region of the bearing surface (24), which compensatory element (25) consists of a material which has a lower hardness than the material of the valve seat (21) and/or than the material of the sealing body (14).

A coupling for a break-away valve assembly includes a coupling and an adapter, the coupling including: a valve arranged in an annular body, the annular body having a valve seat including a first portion and a second portion, adjacent to the first portion, of greater internal diameter relative to the first portion, the valve being biased in a first direction to seal against the valve seat on disconnection of the coupling from the adapter, wherein the valve is biased in a second direction, and the valve is adapted to extend past the first portion into the second portion of the valve seat to release a volume of fluid if the pressure acting on the valve exceeds a predetermined surge pressure threshold.

The present invention relates to a pneumatically, high pressure gas powered emergency release coupling control and monitoring system (S) comprising a powered emergency released coupling (1) arranged in a fluid-supply line (32) for conveying hazardous fluids, said powered emergency released coupling (1) comprising a couple of coupling members (10, 11) provided with mating faces (10A, 11A) for sealing engagement of the coupling members (10, 11) and formation of a pressurizable chamber (12) between said coupling members (10, 11), said system (S) comprising an actuation line (7) connected at its one end to the pressurizable chamber (12) and at its other end to a source (C) of high pressure gaseous media (GH), preferably high pressure nitrogen gas, an first actuating device (4A, 4B) arranged in the actuation line (7), wherein said system (S) provides a gaseous media at a pilot pressure level to said pressurizable chamber (12) and to said actuation line (7) in a position downstream the first actuation device (4A, 4B) or via said pressurizable chamber (12) for detection of any leakage of gas in the control and monitoring system (S), said pilot pressure gaseous media preferably being 15 low pressure nitrogen gas. The invention further relates to a pneumatically, high pressure gas powered emergency release coupling (1) and a control and monitoring method for such a system (S).

A breakaway assembly including a first connector and a second connector releasably coupleable to the first connector, wherein the assembly is movable between a first configuration in which the first and second connectors are releasably coupled and together define a fluid path through which fluid is flowable, and a second configuration in which the first and second connectors are not coupled together. The assembly is configured to move from the first configuration to the second configuration when a predetermined separation force is applied to the assembly. The assembly includes a closure valve positioned in one of the first or second connectors, wherein the closure valve is configured to be in an open position when the assembly is in the first configuration to allow fluid to flow therethrough, and to move to a closed position when the assembly moves to the second configuration to generally block the flow of fluid therethrough. At least part of one of the first or second connectors is axially movable relative to a remaining portion of the one of the first or second connectors, or is axially movable relative to the other one of the first or second connectors, when the assembly is in the first configuration and while the closure valve remains open, to accommodate force spikes.

A hydraulic and/or pneumatic connector, said connector comprising a fixed part adapted to constitute the end part of a first hydraulic circuit of a main operating machine and to be fixed to said main operating machine, said fixed part comprising at least one first male or female hydraulic coupling, said connector comprising a movable part intended to constitute the end part of a second hydraulic circuit of a piece of equipment, said movable part comprising at least one second hydraulic coupling, respectively either female or male, where said at least one first hydraulic coupling of said fixed part and at least one second hydraulic coupling of said movable part are adapted to be hydraulically connected so as to achieve the hydraulic connection between said first and second hydraulic circuits of said male operating machine and said equipment, respectively, said connector comprising mechanical constraint means which can be switched between a first configuration or position and a second configuration or position, where the switching of said mechanical constraints in said second configuration or position translates into the mechanical constraining of said fixed part and said movable part and in the hydraulic connection between said first coupling and said second coupling, of said fixed part and of said movable part, respectively. and where the switching of said constraint means in said first position or configuration translates into the possibly of mechanically releasing said fixed part and said movable part and of hydraulically disconnecting said first coupling and said second coupling of said fixed part and said movable part, respectively.

A breakaway assembly including a first connector and a second connector releasably coupleable to the first connector, wherein the assembly is movable between a first configuration in which the first and second connectors are releasably coupled and together define a fluid path through which fluid is flowable, and a second configuration in which the first and second connectors are not coupled together. The assembly is configured to move from the first configuration to the second configuration when a predetermined separation force is applied to the assembly. The assembly includes a closure valve positioned in one of the first or second connectors, wherein the closure valve is configured to be in an open position when the assembly is in the first configuration to allow fluid to flow therethrough, and to move to a closed position when the assembly moves to the second configuration to generally block the flow of fluid therethrough. At least part of one of the first or second connectors is axially movable relative to a remaining portion of the one of the first or second connectors, or is axially movable relative to the other one of the first or second connectors, when the assembly is in the first configuration and while the closure valve remains open, to accommodate force spikes.

A breakaway coupling for connecting two fluid lines, comprising a first coupling part (3) which can be connected to the first fluid line and a second coupling part (4) which can be connected to the second fluid line. The coupling parts (3, 4) can be disconnected from one another by way of a defined disconnecting force, wherein at least one of the coupling parts (3, 4) has an outflow prevention valve (20) with a valve seat (21) and with a sealing body (14) which is configured for interaction with the valve seat (21). The outflow prevention valve (20) has a hold-open element (16) which is configured to enable a passage of the fluid in the joined-together state of the coupling parts (3, 4). The outflow prevention valve (20) is configured to prevent an outflow of the fluid from at least one of the fluid lines in the disconnected state of the coupling parts (3, 4). The breakaway coupling has an anti-rotation safeguard which, during operation of the coupling, prevents a rotation of the first coupling part (3) and the second coupling part (4) with respect to one another. According to the invention, the valve seat (21) has a bearing surface (24) for the sealing body (14), wherein a compensatory element (25) is arranged in the region of the bearing surface (24), which compensatory element (25) consists of a material which has a lower hardness than the material of the valve seat (21) and/or than the material of the sealing body (14).

A breakaway assembly including a first connector and a second connector releasably coupleable to the first connector. The assembly is movable between a first configuration in which the first and second connectors are releasably coupled and together define a fluid path through which fluid is flowable, wherein the fluid path includes an at least partially radially extending portion, and a second configuration in which the first and second connectors are not coupled together. The assembly is configured to move from the first configuration to the second configuration when a predetermined separation force is applied to the assembly. The assembly further includes a closure valve positioned in one of the first or second connectors, wherein the closure valve is configured to be in an open position when the assembly is in the first configuration to allow fluid to flow therethrough, and to move to a closed position blocking the at least partially radially extending portion of the fluid path when the assembly moves to the second configuration to generally block the flow of fluid therethrough.

A breakaway assembly including a first connector and a second connector releasably coupleable to the first connector. The assembly is movable between a first configuration in which the first and second connectors are releasably coupled and together define a fluid path through which fluid is flowable, and a second configuration in which the first and second connectors are not coupled together. The assembly is configured to move from the first configuration to the second configuration when a predetermined separation force is applied to the assembly. The assembly includes a closure valve positioned in one of the first or second connectors, wherein the closure valve is configured to be in an open position when the assembly is in the first configuration to allow fluid to flow therethrough, and to move to a closed position when the assembly moves to the second configuration to generally block the flow of fluid therethrough. The assembly includes an attraction member coupled to one of the first or second connectors, and a magnet unit coupled to the other one of the first or second connectors, wherein the attraction member and the magnet unit are magnetically attracted to each other when the assembly is in the first configuration to retain assembly in the first configuration. The magnet unit includes a first portion and a second portion coupled to the first portion that together define a channel therebetween, and the magnet unit further includes a plurality of magnets received in the channel.