The composition according to the present embodiment is a composition for forming a lubricant coating layer on a threaded connection for pipes or tubes, and contains Cr.sub.2O.sub.3, a metal soap, a wax and a basic metal salt of an aromatic organic acid. The threaded connection for pipes or tubes according to the present embodiment includes a pin and a box. The pin and the box each include a contact surface including a threaded portion. The threaded connection for pipes or tubes includes, as an outermost layer, a lubricant coating layer formed from the aforementioned composition on at least one of the contact surfaces of the pin and the box.

A holding device to hold a tube or cable in engagement with a bracket is provided with a structure having a seat, which is a through seat along an axis and is defined by a substantially C-shaped edge so as to have a radial opening; the structure further has a slit, which extends along a radial direction up to said seat so as to allow the bracket, in use, to be inserted into the slit and engage the seat; the holding device is further provided with a wing, which is movable between an open position, in which the seat can be accessed through the opening and a closed configuration, in which the opening is closed by the wing.

A coupling system having an inner tube, a collar, a circular gasket concentrically disposed between the inner tube and the collar; a pair of CAM levers structurally engageable with the collar, and a handle connecting the pair of CAM levers such that a user can single-handedly move the handle between the locked position and the unlocked position.

A coupling nut for sealingly engaging a ferrule of a fluid line to a component of a hydraulic system, has: a shank extending along a central axis and having threads to engage a nipple, the threads extending circumferentially around the central axis, the shank defining an inner passage extending along the central axis and sized to receive the fluid line; and a head extending from the shank circumferentially around the inner passage relative to the central axis, the head: defining faces circumferentially distributed about the central axis and edges at junctions between the faces, the faces including torque-transmitting faces each facing a direction having a circumferential component relative to the central axis, and having a cross-section in a plane normal to the central axis, the cross-section defining a plurality of symmetry planes containing the central axis, the torque-transmitting faces free of intersection with the plurality of symmetry planes.

Provided is a chemical injection system for connection to a chemical tank and a process line. The system includes a pump box configured to attach to the tank, the pump box including a body defining an interior, a pump assembly disposed within the interior of the body of the pump box, and an injection assembly configured to be fluidly coupled to the pump box. The injection assembly includes an injection lance having a flange and a stem, a first seal abutting a first side of the flange of the injection lance, and a second seal abutting a second side of the flange of the injection lance.

A connection device has a line portion having, at its end, a radially outwardly projecting abutment flange for abutting against a corresponding abutment flange of a further line portion which is to be coupled to the line portion, and a ring-segment chain comprising a plurality of ring segments connected to one another in a pivotable manner in a common ring plane, wherein the ring-segment ends which form the chain ends can be latched to one another to give a ring-form connection clamp. The invention is distinguished in that the line portion is designed in the form of a tubular connection stub with first thread means spaced apart axially from the abutment surface of its abutment flange and in that each ring segment has a radially inwardly projecting clamping flange and second thread means, which are spaced apart axially from said clamping flange and correspond to the first thread means.

There may be provided a connector for a liquid container. The connector may include a connector body, and a through-hole for fitting on a neck portion of the liquid container. The connector may further include a restraining arrangement positioned proximal to the through-hole. The restraining arrangement may include a first restraining member and a second restraining member extending towards a central axis of the connector body. The first restraining member may have a distal end that extends further than a distal end of the second restraining member. The distal end of the first restraining member may engage the neck portion of the liquid container at a first position, and the distal end of the second restraining member may engage the neck portion of the liquid container at a second position. The connector may further include a connector-to-key-interface arrangement configured to mate with a corresponding surface of a key member.

The invention relates to a coupling 10 for transferring fluids, having a valve 30, the valve tappet 32 of which is coupled in terms of movement with a valve sleeve 31, which is pre-tensioned by spring force in the flow direction D of the fluid, and having a locking mechanism 40 for releasably locking the coupling 10 to a tank nipple 50, and a securing mechanism 60 for releasably blocking the closed valve 30, wherein the locking mechanism 40 and the securing mechanism 60 are coupled in terms of movement via a sliding sleeve 70 which is pre-tensioned by spring force against the flow direction D of the fluid, so that in a first control position A of the sliding sleeve 70, the locking mechanism 40 is unlocked and the valve 30 is closed, and in a second control position B of the sliding sleeve 70, the securing mechanism 60 unlocks the valve sleeve 31, so that the valve 30 is unblocked and at least partially opened, and the valve sleeve 31 can be moved subject to pressure against the flow direction D of the fluid, wherein the securing mechanism 60 locks the sliding sleeve and completely opens the valve 30.

A fluid coupling has two similar coupling halves, each with a rotary body of a valve. A drive device for closing/opening the valve is associated with each rotary body. Each half has a coupling means for connecting/decoupling the halves by relative rotation. Securing means secure the connection when at least one valve is open and close the two rotary valves to disconnect/connect the halves. The drive device is arranged on one half and has a drive shaft which is associated with a valve shaft of the rotary body of the other half. A locking connection is configured which, when the halves are connected, connects the drive shaft on one half to the valve shaft on the other in a non-rotatable/releasable manner such that the rotation of the rotary body is controllable and relative rotation of the halves is blocked but the relative rotation when the valves are closed is permitted.

A female coupling for a fluid quick connector and configured to be removably connected to a male coupling of the connector. The female coupling includes a valve assembly with a valve alternating between closed and open positions. The flow of a fluid from the female coupling towards the male coupling occurs in the open position. The female coupling includes a hollow body defining an inner cavity with a longitudinal axis for the flow of the fluid. The female valve assembly is housed in the inner cavity. The hollow body includes an end portion configured to be housed in a housing seat of an interface manifold. With the end portion in the housing seat, the tubular inner cavity is placed in fluid connection with at least one inner channel of the interface manifold. A constraint prevents rotation/translation of the end portion of the hollow body with respect to the housing seat.