Valve interconnector (1), suitable for use in combination with a receiver interconnector to couple a first hollow body associated to the valve interconnector to a second hollow body associated to the receiver interconnector, wherein the valve interconnector comprises a neck (7) to be secured to the first hollow body, a passageway (77) through the neck to allow fluid communication between the first hollow body and the second hollow body. The valve interconnector further comprises abase cap (8) secured to the neck, a valve assembly (5) secured to the base cap, the valve assembly being configured to assume at least a closed position and at least an open position. The valve interconnector further comprises a sealing ring (3) configured to provide a leakproof connection between the valve interconnector and the receiver interconnector. The valve interconnector further comprises a code ring cap (9), wherein the code ring cap (9) further comprises a head portion (99) covering at least a portion of the external surface of the head portion (89) of the base cap (8), the head portion (99) of the code ring cap (9) comprising a sealing ring enclosing portion (91) configured to cooperate in retaining the sealing ring (3) within the sealing ring seat (2).

Valve interconnector (1), suitable for use in combination with a receiver interconnector to couple a first hollow body associated to the valve interconnector to a second hollow body associated to the receiver interconnector, wherein the valve interconnector comprises a neck (7) to be secured to the first hollow body, a passageway (77) through the neck to allow fluid communication between the first hollow body and the second hollow body. The valve interconnector further comprises abase cap (8) secured to the neck, a valve assembly (5) secured to the base cap, the valve assembly being configured to assume at least a closed position and at least an open position. The valve interconnector further comprises a sealing ring (3) configured to provide a leakproof connection between the valve interconnector and the receiver interconnector. The valve interconnector further comprises a code ring cap (9), wherein the code ring cap (9) further comprises a head portion (99) covering at least a portion of the external surface of the head portion (89) of the base cap (8), the head portion (99) of the code ring cap (9) comprising a sealing ring enclosing portion (91) configured to cooperate in retaining the sealing ring (3) within the sealing ring seat (2).

A ratchet fitting includes a screw portion and an operating portion. One of the screw portion and the operating portion has an engaging member, and the other one of the screw portion and the operating portion has an elastic member and a holding member formed separately from the elastic member. The elastic member and the engaging member are fitted such that a rotational force is transmittable to each other due to engagement of the projection and the protrusion and engagement between the projection and the protrusion is releasable due to deformation of the elastic member. The elastic member has a first fitting portion, the holding member has a second fitting portion, and the holding member and the elastic member are fitted such that the first fitting portion and the second fitting portion are fitted to each other in a rotation direction.

A ratchet fitting includes a screw portion and an operating portion. One of the screw portion and the operating portion has an engaging member, and the other one of the screw portion and the operating portion has an elastic member and a holding member formed separately from the elastic member. The elastic member and the engaging member are fitted such that a rotational force is transmittable to each other due to engagement of the projection and the protrusion and engagement between the projection and the protrusion is releasable due to deformation of the elastic member. The elastic member has a first fitting portion, the holding member has a second fitting portion, and the holding member and the elastic member are fitted such that the first fitting portion and the second fitting portion are fitted to each other in a rotation direction.

A restraint system for use in securing temporary flow lines that include multiple pipe sections, each pair of pipe sections connected together with a fitting or coupling such as a hammer joint coupling. The system includes multiple pluralities of endless loop slings connected end to end with a cow hitch or girth hitch knot. Disconnectable fittings (e.g., shackles) are placed every three or more slings so that easy disassembly is afforded in case of leakage or other failure.

A ratchet fitting includes a screw portion and an operating portion. One of the screw portion and the operating portion has an engaging member, and the other one of the screw portion and the operating portion has an elastic member and a holding member formed separately from the elastic member. The elastic member and the engaging member are fitted such that a rotational force is transmittable to each other due to engagement of the projection and the protrusion and engagement between the projection and the protrusion is releasable due to deformation of the elastic member. The elastic member has a first fitting portion, the holding member has a second fitting portion, and the holding member and the elastic member are fitted such that the first fitting portion and the second fitting portion are fitted to each other in a rotation direction.

A ratchet fitting includes a screw portion and an operating portion. One of the screw portion and the operating portion has an engaging member, and the other one of the screw portion and the operating portion has an elastic member and a holding member formed separately from the elastic member. The elastic member and the engaging member are fitted such that a rotational force is transmittable to each other due to engagement of the projection and the protrusion and engagement between the projection and the protrusion is releasable due to deformation of the elastic member. The elastic member has a first fitting portion, the holding member has a second fitting portion, and the holding member and the elastic member are fitted such that the first fitting portion and the second fitting portion are fitted to each other in a rotation direction.

A plug-in coupling for connecting a first double-walled vacuum-insulated cryogenic line to a second. The plug-in coupling has a coupling plug and a coupling socket. The coupling plug can be plugged into the coupling socket, these being retained in a plugged-together state by fixing means. A guide column is arranged on the coupling plug or the coupling socket. The guide column has arranged on it elastic means which, in the assembled state of the plug-in coupling, are subjected to stressing and which subject the coupling plug and/or coupling socket to an elastic force which strives to release the coupling plug and coupling socket from one another as soon as the fixing means no longer hold the coupling plug and coupling socket together. The elastic energy stored in the elastic means ensures that, in the event of an emergency, the coupling plug and coupling socket are quickly released from one another.

A hand disassembly rotational valve coupling for tool less manipulation by a user's hands and fingers using a coupling housing body defining an output seal aperture close to an output handle retention slot and slot lip, where the slot lip has a slot handle gap and an output seal retainer including a coupling handle ring with a first triangulated offset body retention ears and hand graspable handles separated by a ring handle gap for hand assembly and disassembly from the coupling housing body.

A hand disassembly rotational valve coupling for tool less manipulation by a user's hands and fingers using a coupling housing body defining an output seal aperture close to an output handle retention slot and slot lip, where the slot lip has a slot handle gap and an output seal retainer including a coupling handle ring with a first triangulated offset body retention ears and hand graspable handles separated by a ring handle gap for hand assembly and disassembly from the coupling housing body.