Abstract: A slide valve for chemical and/or petrochemical plants, in particular of the round, oval or flat slide valve type, having a locking device (11) which is movable by a slide rod (12) into an open and closed position, and a drive which has an electric motor (13) for adjusting the slide rod (12), the locking device (11) having two lock plates (14, 15), between which a wedge arrangement (16) for pressing the lock plates (14, 15) against body seal seats (17) of the slide valve is arranged and connected to the slide rod (12), wherein the drive has a spindle drive (18) which is aligned with the slide rod (12) and connected thereto for transmitting an actuating force.

Abstract: Provided is a gate valve for industrial plants, in particular for chemical and petrochemical plants. This gate valve comprises a slide rod, which is movable in the axial direction, at least one slide plate for closing the gate valve and at least one pressing member. The pressing member is connected to the slide rod and presses the slide plate against a sealing seat. Furthermore, the gate valve comprises a spring element for acting on the pressing member with a release force and a fixing element which is arranged on the slide rod for transmitting power between slide rod and spring element. The gate valve according to the invention comprises a fixing disc as a fixing element, which surrounds the slide rod and is positively connected to the slide rod.

Abstract: A slide valve for chemical and/or petrochemical plants, in particular of the round, oval or flat slide valve type, having a locking device (11) which is movable by a slide rod (12) into an open and closed position, and a drive which has an electric motor (13) for adjusting the slide rod (12), the locking device (11) having two lock plates (14, 15), between which a wedge arrangement (16) for pressing the lock plates (14, 15) against body seal seats (17) of the slide valve is arranged and connected to the slide rod (12), wherein the drive has a spindle drive (18) which is aligned with the slide rod (12) and connected thereto for transmitting an actuating force.

Abstract: Provided is a gate valve for industrial plants, in particular for chemical and petrochemical plants. This gate valve comprises a slide rod, which is movable in the axial direction, at least one slide plate for closing the gate valve and at least one pressing member. The pressing member is connected to the slide rod and presses the slide plate against a sealing seat. Furthermore, the gate valve comprises a spring element for acting on the pressing member with a release force and a fixing element which is arranged on the slide rod for transmitting power between slide rod and spring element. The gate valve according to the invention comprises a fixing disc as a fixing element, which surrounds the slide rod and is positively connected to the slide rod.