Abstract: A threaded coupling assembly include a union (12), a tube end (14), and a coupling nut (16). A pair of telescoping indicator rings (30, 32), a radially outer ring and a radially inner ring, are respectively connected to the union and the nut. The inner ring has a first visual characteristic contrasting with a second visual characteristic of the inner ring. The outer ring has a third visual characteristic contrasting with the second visual characteristic of the inner ring. The first visual characteristic is aligned with and viewable through the window (60) of the outer ring when the threaded coupling assembly is in the fully assembled state, and the first visual characteristic is out of alignment with the window when the threaded coupling assembly is not in the fully assembled state. The assembly may utilize tapered threads and have one or more features for self-alignment and/or sealability.

Abstract: A threaded coupling assembly include a union (12), a tube end (14), and a coupling nut (16). A pair of telescoping indicator rings (30, 32), a radially outer ring and a radially inner ring, are respectively connected to the union and the nut. The inner ring has a first visual characteristic contrasting with a second visual characteristic of the inner ring. The outer ring has a third visual characteristic contrasting with the second visual characteristic of the inner ring. The first visual characteristic is aligned with and viewable through the window (60) of the outer ring when the threaded coupling assembly is in the fully assembled state, and the first visual characteristic is out of alignment with the window when the threaded coupling assembly is not in the fully assembled state. The assembly may utilize tapered threads and have one or more features for self-alignment and/or sealability.

Abstract: A backlash-free plug-in connection for a pipe or hose line includes a threaded-connection body, a union nut, a pipe piece insertable into the threaded-connection body, and a securing ring supported against the pipe piece. Stepped recesses are provided for holding the securing ring. A gasket seals the pipe piece against the threaded-connection body. By pressurizing a medium flowing through the pipe or hose line, the pipe piece moves from an inserted position against an insertion direction to a locked position. A fixing ring abuts the securing ring and the gasket, and is supported between the pipe piece and a contact surface formed on the threaded-connection body or union nut. The contact surface is inclined and the gasket moves the fixing ring to a fixed position when the pipe piece moves to the locked position so that the pipe piece is fixed in place.

Abstract: A plug-in connection for pipe lines or hose lines with a threaded-connection body and with a union nut screwed onto the threaded-connection body for the locked retention of a pipe piece inserted into the threaded-connection body by means of a securing ring that is supported against a retaining surface arranged on the pipe piece, wherein a floor surface of a chamber allocated to the securing ring incorporates a stepped recess for holding the securing ring, comprised of a first step and a second securing step adjoining the latter, wherein the chamber further incorporates a gasket that seals the inserted pipe piece against the threaded-connection body, and the pipe piece, by pressurizing the medium from its inserted position against the insertion direction relative to the threaded-connection body, can be transferred into its locked position, wherein a fixing ring is situated in the chamber between the securing ring and gasket, which abuts against the securing ring on the one hand and the gasket on the other, and

Abstract: A high-pressure connection device for pipe and hose lines with a connection body and a pipe-like end piece insertable into the connection body, including a union nut externally mounted to the connection body, which can be rotated between a released position and a mounted position. Form-locking designs, which act like a bayonet coupling, are arranged on the connection body and union nut in the form of projections on the union nut as well as in the form of interlocking contours formed on an end extension of the connection body for the locking reception of the projections when rotating the union nut. A security element is movable between a secure position and a release position for rotation of the union nut in order to prevent unintentional reverse rotation of the union nut.

Abstract: An adaptor for converting to a push-to-connect tube fitting/port a standard tube fitting/port body having a threaded portion for threaded attachment of a nut/plug, comprises a coupling nut/plug having an axially inner threaded end portion for threaded attachment to the threaded portion of the fitting/port body; a tube sealing member contained within the nut/plug for sealing to a tube having a locking surface spaced from the end of the tube; and a retention device retained in the nut/plug, which nut/plug has at an axially outer end thereof a central opening through which the tube can be inserted into the coupling nut/plug, whereby the locking surface can be engaged by the retention device to prevent axial withdrawal of the tube from the coupling nut/plug once inserted; wherein sealing and retention of the tube is effected within the confines of the coupling nut/plug and separate from and without requiring modification of the standard tube fitting/port body.

Abstract: An adaptor (45) for converting to a push-to-connect tube fitting/port a standard tube fitting/port body (10, 110, 210, 310, 410, 510, 610) having a threaded portion (11) for threaded attachment of a nut/plug (12), comprises a coupling nut/plug (12, 112, 212, 312, 412, 512, 612) having an axially inner threaded end portion for threaded attachment to the threaded portion (11) of the fitting/port body (10); a tube sealing member (15, 115, 215, 315, 415, 515, 615) contained within the nut/plug (12) for sealing to a tube (19) having a locking surface (22) spaced from the end of the tube (19); and a retention device (23) retained in the nut/plug (12), which nut/plug (12) has at an axially outer end thereof a central opening through which the tube (19) can be inserted into the coupling nut/plug (12), whereby the locking surface (22) can be engaged by the retention device (23) to prevent axial withdrawal of the tube (19) from the coupling nut/plug (12) once inserted; wherein sealing and retention of the tube (19) is

Abstract: The invention relates to a pipe connector for a pressure-resistant, positive-fit, high pressure screwed joint. The connection includes a formed tube; a screw body or connector branch with a cone, which connects to a parallel axis drilling, with a radial end surface; a union nut; a sealing ring; and a retaining ring. The formed tube has a parallel axis end-piece with the same tube diameter and which corresponds to the depth of the tube seat base. The formed tube has a pronounced head which forms a mating face, with a cone surface of the union nut, and which leads to an abutment face at a front face of the retaining ring, essentially aligned with the tube axis. The retaining ring has a radial ring surface, which, in the assembled state, contacts with the front face of the cone of the connector branch or screw body, and thus permits a block assembly.

Abstract: An adaptor (45) for converting to a push-to-connect tube fitting/port a standard tube fitting/port body (10, 110, 210, 310, 410, 510, 610) having a threaded portion (11) for threaded attachment of a nut/plug (12), comprises a coupling nut/plug (12, 112, 212, 312, 412, 512, 612) having an axially inner threaded end portion for threaded attachment to the threaded portion (11) of the fitting/port body (10); a tube sealing member (15, 115, 215, 315, 415, 515, 615) contained within the nut/plug (12) for sealing to a tube (19) having a locking surface (22) spaced from the end of the tube (19); and a retention device (23) retained in the nut/plug (12), which nut/plug (12) has at an axially outer end thereof a central opening through which the tube (19) can be inserted into the coupling nut/plug (12), whereby the locking surface (22) can be engaged by the retention device (23) to prevent axial withdrawal of the tube (19) from the coupling nut/plug (12) once inserted; wherein sealing and retention of the tube (19) is

Abstract: An adaptor for converting to a push-to-connect tube fitting/port a standard tube fitting/port body having a threaded portion for threaded attachment of a nut/plug, comprises a coupling nut/plug having an axially inner threaded end portion for threaded attachment to the threaded portion of the fitting/port body; a tube sealing member contained within the nut/plug for sealing to a tube having a locking surface spaced from the end of the tube; and a retention device retained in the nut/plug, which nut/plug has at an axially outer end thereof a central opening through which the tube can be inserted into the coupling nut/plug, whereby the locking surface can be engaged by the retention device to prevent axial withdrawal of the tube from the coupling nut/plug once inserted; wherein sealing and retention of the tube is effected within the confines of the coupling nut/plug and separate from and without requiring modification of the standard tube fitting/port body.

Abstract: The invention relates to a device for forming an end area of a workpiece (2), especially for cold press-forming an end area of a pipe, comprising two force transmitting elements (7, 9) which are guided in a common housing (3). The device is characterised in that a first pressure chamber (26) is located between the two force transmission elements (7, 9) and in that a second pressure chamber (28) is allocated to the second force transmission element (9). When the first force transmission element (7) is in the bracing position, the second force transmission element (9) can be displaced in relation to the first force transmission element (7) in order to form the workpiece.

Abstract: The invention relates to a device for forming an end area of a workpiece (2), especially for cold press-forming an end area of a pipe, comprising two force transmitting elements (7, 9) which are guided in a common housing (3). The device is characterised in that a first pressure chamber (26) is located between the two force transmission elements (7, 9) and in that a second pressure chamber (28) is allocated to the second force transmission element (9). When the first force transmission element (7) is in the bracing position, the second force transmission element (9) can be displaced in relation to the first force transmission element (7) in order to form the workpiece.

Abstract: The invention relates to a pipe connector for a pressure-resistant, positive-fit, high pressure screwed joint. The connection includes a formed tube; a screw body or connector branch with a cone, which connects to a parallel axis drilling, with a radial end surface; a union nut; a sealing ring; and a retaining ring. The formed tube has a parallel axis end-piece with the same tube diameter and which corresponds to the depth of the tube seat base. The formed tube has a pronounced head which forms a mating face, with a cone surface of the union nut, and which leads to an abutment face at a front face of the retaining ring, essentially aligned with the tube axis. The retaining ring has a radial ring surface, which, in the assembled state, contacts with the front face of the cone of the connector branch or screw body, and thus permits a block assembly.

Abstract: The invention concerns a coupling device for maximum pressure-tight threaded pipe connectors with a standard coupling body, with a 24 degree connector, a coupling nut to effect a pressure-tight connection, a standard pipe or a connection stub for connection to other system components, and a two-part ring whereby one ring is provided with a holding element which takes the form of a cutting or clamping ring and the second ring takes the form of a sealing ring (6) for the coupling body (1) and is positioned in front of the holding element (7). The sealing ring is provided with a stop face (10) which progresses radially to its ring axis (9) and, when fitted, abuts on to the inner ring face (11 ) of the coupling body (1) which extends over at least a part of the inner bevel face [cone] (2) of the coupling body (1). The sealing element presents a conically progressing sliding face (14) for the holding element (7) and a stop face (15) progressing radially to the pipe or ring axis (9).