Abstract: A conduit slider for chemical and petrochemical systems, comprising a slider housing (10) which has a blockable conduit (20) and at least one slider plate (30) which can be moved into an open position and a closed position and vice versa. A sealing seat (40) is paired with the conduit (20), said sealing seat extending along the circumference of the conduit (20) and sealing against the slider plate (30) at least in the closed position during operation. The conduit slider ensures the seal between the sealing seat (40) and the slider plate (30) and allows the slider plate (30) to be installed into and removed from the slider housing (10) with a compact, portable, simple, and inexpensive design. This is achieved in that at least one circumferential groove (42) is formed in the sealing seat (40), a molded metal ring (50) with a media filling being arranged in said groove.

Abstract: The invention relates to a conduit slider for chemical and petrochemical systems, comprising a slider housing (10) which has a blockable conduit (20) and at least one slider plate (30) which can be moved into an open position and a closed position and vice versa. A sealing seat (40) is paired with the conduit (20), said sealing seat extending along the circumference of the conduit (20) and sealing against the slider plate (30) at least in the closed position during operation. The aim of the invention is to provide such a conduit slider for chemical and petrochemical systems, wherein the conduit slider ensures the seal between the sealing seat (40) and the slider plate (30) and allows the slider plate (30) to be installed into and removed from the slider housing (10) with a compact, portable, simple, and inexpensive design. This is achieved in that at least one circumferential groove (42) is formed in the sealing seat (40), a molded metal ring (50) with a media filling being arranged in said groove.

Abstract: A shut-off device for low-temperature media includes a housing (2), a valve seat (5) located in the housing (2), and a valve (3) that cooperates with the valve seat and is pivotally supported in the housing (2). On the housing (2) there is at least one flange (10) for mounting the shut-off device in a pipeline. The low-temperature shut-off device, low construction cost and low maintenance cost is achieved because the flange (10) of the housing (2) is designed as a welding flange (10a, 10b) for attachment of the shut-off device (1) in the pipeline by a weld joint, especially a butt weld joint, and because the housing (2) is provided with a housing opening (11) for mounting and/or removing the valve (3).

Abstract: A shut-off device for low-temperature media includes a housing (2), a valve seat (5) located in the housing (2), and a valve (3) that cooperates with the valve seat and is pivotally supported in the housing (2). On the housing (2) there is at least one flange (10) for mounting the shut-off device in a pipeline. The low-temperature shut-off device, low construction cost and low maintenance cost is achieved because the flange (10) of the housing (2) is designed as a welding flange (10a, 10b) for attachment of the shut-off device (1) in the pipeline by a weld joint, especially a butt weld joint, and because the housing (2) is provided with a housing opening (11) for mounting and/or removing the valve (3).

Abstract: A shut-off device for low-temperature media includes a housing (2), a valve seat (5) located in the housing (2), and a valve (3) that cooperates with the valve seat and is pivotally supported in the housing (2). On the housing (2) there is at least one flange (10) for mounting the shut-off device in a pipeline. The low-temperature shut-off device, low construction cost and low maintenance cost is achieved because the flange (10) of the housing (2) is designed as a welding flange (10a, 10b) for attachment of the shut-off device (1) in the pipeline by a weld joint, especially a butt weld joint, and because the housing (2) is provided with a housing opening (11) for mounting and/or removing the valve (3).

Abstract: The invention relates to a shut-off device (1) and a process for producing a shut-off device with a housing (2) and a shut-off flap (3) that is pivotally located in the housing, a shut-off flap seat (7) formed by the components (2; 3; 8, 12a; 12b) being located between the housing (2) and the shut-off flap (3). To achieve the object of ensuring a good fit and thus a high level of tightness of the shut-off device, it is suggested according to the invention that the components (2; 3; 8, 12a; 12b) of the shut-off device (1) that form the shut-off flap seat (7) are subjected to treatment by cold ageing in the low temperature range. This treatment by cold ageing takes place advantageously before final mechanical working of the components (2; 3; 8, 12a; 12b) with liquid nitrogen.

Abstract: The invention relates to a shut-off device for low-temperature media, with a housing (2), a valve seat (5) located in the housing (2), and a butterfly valve (3) that triggers the valve seat and that is pivotally supported in the housing (2), on the housing (2) at least one flange (10) being formed for mounting the shut-off device in a pipeline. The object of making available a low-temperature shut-off device at low construction cost and maintenance cost is achieved according to the invention in that the flange (10) of the housing (2) is designed as a welding flange (10a, 10b) for attachment of the shut-off device (1) in the pipeline by means of a weld joint, especially a butt weld joint, and the housing (2) is provided with a housing opening (11) for mounting and/or removing the butterfly valve (3).