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).

Abstract: The invention provides a coupling device for high pressure threaded pipe connection to a coupling body with a standard 24 degree connector, a coupling nut to establish a pressure tight connection and a shaped pipe or a connection stub for connection to other system components. An adapter ring is proposed with a cylindrical internal bore and radially progressing and/or domed end ring faces of different sizes, at least one of which is formed as a sealing face fitted with a ring seal, to each of which an axially directed cylinder outer face is juxtaposed, between which a 24.degree. outer bevel is arranged to adapt to the coupling body. The ring face of the adapter ring which when fitted is directed towards the connection stub or the flared flange of the shaped pipe is provided with an annular groove to accept a ring seal or an o-ring.

Abstract: The invention relates to a device for measuring pressures in a hydraulic or pneumatic system comprising preferably a piezoresistive pressure measuring cell disposed within the pressure housing in a pressure chamber filled with a separating fluid and separated from the medium to be measured by means of a diaphragm. In the pressure housing on the pressure input side before the pressure measuring cell or the sensor element (10.0), at least one pressure attenuation element (3.0;4.0;5.0) transferring the pressure is arranged before and/or behind the separating diaphragm (2.0). In an embodiment, a pressure attenuation element (3.0 or 5.0, resp.) is arranged on the pressure input side behind the diaphragm being provided with an elastic protective layer (2.1) turned toward the pressure attenuation element. The pressure attenuation element (3.0;4.0;5.0) consists of a microporous sintered metal, e.g.