Abstract: Slide valve, preferably for closing off a media conveying line, is provided with a housing having a through-opening, a slide plate that can be moved therein, as well as a sealing arrangement. This sealing arrangement is formed as a single piece from a profile that partially surrounds the through-opening, as well as from transverse longitudinal seals connected thereto. At the ends of the legs of the profile, on both sides, two longitudinal seals, arranged parallel to and spaced at a distance from one another, are connected to the lateral face of the profile. This one-piece sealing arrangement allows the slide valve to be manufactured and assembled simply.

Abstract: Slide valve, preferably for closing off a media conveying line, is provided with a housing having a through-opening, a slide plate that can be moved therein, as well as a sealing arrangement. This sealing arrangement is formed as a single piece from a profile that partially surrounds the through-opening, as well as from transverse longitudinal seals connected thereto. At the ends of the legs of the profile, on both sides, two longitudinal seals, arranged parallel to and spaced at a distance from one another, are connected to the lateral face of the profile. This one-piece sealing arrangement allows the slide valve to be manufactured and assembled simply.

Abstract: A slide valve, in particular for blocking a line conveying media, is provided with a multi-part housing (2) having a passage opening (3). Disposed in this housing (2) are two slider plates (4, 5), parallel to one another, moveable at right angles to the passage opening (3), and which can be moved from an open position into a closed position tightly blocking the passage opening (3) by means of a common drive mechanism (10). Means are provided for connecting the two slider plates (4, 5) to one another and to the drive mechanism (10), and which in the closed position allow a pre-determined relative movement of the slider plates (4, 5) in relation to one another in their direction of movement. Thus, even with tolerance deviations with regard to the slider plates and/or their counter-surfaces, a long-lasting blocking function of both slider plates is guaranteed.

Abstract: A slide valve, in particular for blocking a line conveying media, is provided with a multi-part housing (2) having a passage opening (3). Disposed in this housing (2) are two slider plates (4, 5), parallel to one another, moveable at right angles to the passage opening (3), and which can be moved from an open position into a closed position tightly blocking the passage opening (3) by means of a common drive mechanism (10). Means are provided for connecting the two slider plates (4, 5) to one another and to the drive mechanism (10), and which in the closed position allow a pre-determined relative movement of the slider plates (4, 5) in relation to one another in their direction of movement. Thus, even with tolerance deviations with regard to the slider plates and/or their counter-surfaces, a long-lasting blocking function of both slider plates is guaranteed.

Abstract: A slide valve, in particular for blocking a line conveying media, is provided with a housing (2) having a passage opening (3) and with a slider plate (4) moveable within the housing (2) at right angles to the passage opening (3). The latter can be displaced from an open position into a closed position blocking the passage opening (3) tightly by means of a drive mechanism (10). A lateral seal (20) is respectively disposed in a respective groove (20?) in the housing (2) above the passage opening (3) on both sides of the slider plate (4) at right angles to its direction of displacement. The inside and outside of the housing (2) and the slider plate (4) are provided with at least one layer forming a temperature barrier, and the lateral seal comprises a high temperature-resistant layer or sealing compound. The risk of a leak into the atmosphere and/or in the passage during a fire or during extinguishing efforts is thus substantially reduced.

Abstract: A slide valve, in particular for blocking a line conveying media, comprises a multi-part housing (13, 14) having a passage opening (12) and in which a slider plate (15) operable by a drive component is moved longitudinally. To both sides of the slider plate (15), laterally to its direction of movement, a longitudinal seal (20) is respectively disposed above the passage opening in a longitudinal groove (17) in the housing (13, 14). This longitudinal seal (20) respectively has an elastic sealing profile (21) and bars (22) adjacent to the latter. The respective elastic sealing profile (21) is preferably provided on the front side with two sealing lips (23) spaced apart from one another, touching the slider plate (15), and in the central region with groove-shaped chambers (25) on both sides.

Abstract: A shut-off device (1) for protection against explosions in a pipe-line is fitted with a slide valve plate (10) movable transversely to the direction of flow (A). The slide valve plate is connected via a piston rod (25, 26) to a piston (27, 28) slidably guided in a cylinder (35, 36) and actuated by a pressure medium. The pressure medium is supplied from a pressure medium reservoir via a closing valve (45) to a working chamber (46, 47) of the cylinder (35, 36), thereby actuating the piston and causing the slide valve plate (10) to move into a position closing the pipe passage (4). At least one cylinder (35, 36) is arranged within a pressure chamber (40) enclosed by a housing (30), which forms the pressure medium reservoir. Thus, a compact, space-saving shut-off device is created which can be shut within a very short time.