Abstract: A nipple (1) is connectable or connected to a system (2) of pressurizable fluid (16). The first rapid-coupling part operates with a dual function in which, in a first function, the first rapid-coupling part can be coupled together with a second rapid-coupling part and in the coupling position of the parts fluid can be drained off to a first apparatus receiving the drained-off fluid and, in a second function, the first rapid-coupling part receives a probe-shaped unit, which is insertable in the first rapid-coupling part, for draining off the fluid to a quality-detecting apparatus or container apparatus; connected to the probe-shaped unit.

Abstract: A quick coupling includes a frame and a valve body which is arranged to be longitudinally displaceable in the frame. An inner sleeve is arranged in the frame to be displaceable relative to both the frame and the valve body. The valve body is centered in the frame with the aid of the bearing unit projecting inwards from the sleeve. The bearing unit is provided with one or more cavities or holes allowing working media to flow through. A rear seal is provided in a seat arranged behind the inner sleeve. A pressure eliminator is also provided behind the inner sleeve.

Abstract: A first quick-coupling part can be brought into interaction with a second quick-coupling part via an interaction portion. The quick-coupling parts are held together with locking members. The interaction portion is designed with a surface layer which brings about an essentially crack-free flexibility for the locking members in spite of high actuating forces. One or more underlying layer(s) has (have) greater hardness than the surface layer, and the combination of said layers gives the necessary resistance against high media pressure.

Abstract: A quick coupling component (2) comprises a valve member (1) for a main flow (4). Arranged in the valve member is a pressure reduction member with pressure reduction channel (7). The pressure reduction member comprises a shut-off element (8) which is arranged in the channel and which can bear against a seat (9) and is lifted by an activation member (13) counter to the action of a spring (10). The surface of the seat has a degree of fineness which corresponds to a great extent with the degree of fineness of the shut-off element. The latter has a hardness which substantially exceeds the hardness of the seat material. An inherent elasticity of the seat material contributes to the sealing function of the element against the seat in the closed position of the element.

Abstract: A quick coupling component including at least one valve member. A pressure reduction channel is provided in at least one valve member. A pressure reduction member is arranged in the pressure reduction channel. The pressure reduction member includes a shut-off element arranged in the pressure reduction channel. A seat includes a seat surface, wherein in a closed position a first portion of the shut-off element surface bears against the seat surface. The seat surface substantially corresponds to the shut-off element first surface portion. The seat surface includes a degree of fineness substantially corresponding to a degree of fineness of the shut-off element. At least one of the seat and the shut-off element is formed of a material having a hardness substantially exceeded by a hardness of another of the seat and the shut-off element.

Abstract: A device in fluid-conducting unit for use in a supply line for carrying fluid with pressure from a source of the fluid to a tool comprises a coupling member having first and second open ends and a fluid passageway extending between the open ends. The fluid passageway has inner walls defining first and second sections with the second section having a larger diameter than the first section.

Abstract: A coupling part constituting the male or female part in a quick coupling comprises an inner, longitudinally displaceable unit positioned in an outer part of the coupling part the inner unit being adapted in a deactivated position thereof to confine the media pressure in a first chamber arranged in the outer part of the coupling part and in an actuated position to open or keep open an access for media to a second chamber in the outer part. Pressure-reducing members actuable upon coupling together of the male and female parts and allowing for the coupling even at high media pressures, and including a lead-off channel for media pressure and a shut-off element positioned in the channel, and actuable by the end face of the other coupling part through an actuation member. The actuation member is sealed-off or positioned in the coupling part in order to prevent lead-off media from reaching the end face of the coupling part.

Abstract: Coupling arrangement comprising connectable male and female parts (1, 2). The male part can be partially inserted into the female part. The female part comprises a longitudinally displaceable inner sleeve (4) which, in the non-actuated position of the female part, is caused to assume a closed position. When the male part is inserted into the female part, the inner sleeve is acted upon counter to the action of a spring function towards an open position, in which the media passage through the coupling is open. At its section (18) which can be inserted into the female part, the male part is provided with an inner surface (18a) which, upon insertion of the male part into the female part, surrounds a corresponding outer surface (4d) on the inner sleeve. Sealing members (18b, 18c and 21) prevent media leakage during the coupling movement of the male and female parts.

Abstract: Each coupling component in a multiple coupling has a number of units arranged alongside one another. The component parts of the coupling units interact in pairs and in a compatible fashion with one another. Each unit includes a subordinate fluid channel and a device for opening and closing the fluid channel depending on the nature of its interaction with the corresponding unit in the other component. With the components in their connected position each pair of units constitutes through its fluid channels, a common essentially leak-free channel sealed off from the common channels formed by the other pairs of units. The components are arranged with guide balls and axial grooves, with the help of which the component parts can be connected together in one or more pre-determined rotational positions.

Abstract: In a female coupling component (1, 2) which forms part of a quick coupling there is present a unit (12) so arranged as to be capable of longitudinal displacement in the longitudinal sense of the female coupling component. The unit supports at its first end a first sealing component (14) which is capable of interacting with a seat (1b) in the female coupling component. At its second end the unit supports a second sealing component (15) which is capable of interacting with a sleeve (7) so arranged as to be capable of longitudinal displacement in the female coupling component. The unit comprises an elongated hub component and extending from it wing-shaped elements (25) by means of which the unit which is capable of longitudinal displacement is centered in the female coupling component and between which the fluid passageways lead into the female coupling component.

Abstract: A fluid coupling device comprising two connectable parts each having a channel and a fluid flow blocking component which in unactivated position keeps the channel closed and in operated position keeps the channel open. A slidable push rod is provided which in the connected position of the parts, opens the flow blocking components and inter-connects the channels of the two parts. The push rod is provided with a flange having a combined stop- and counteracting surface which interacts with one of the parts; also has a separate flange surface which interacts with an actuating surface of the second part.