Abstract: A manifold of a valve conducting gas or liquid has a passage with an inlet and at least one outlet. The passage changes direction from the manifold inlet to the manifold outlet over a length of the passage. The cross-section of the manifold in the region where the passage changes direction, merges in a plurality of sequential sectors from an almost round or oval cross-section over a plurality of cross-sections that are flattened on the inner manifold side again into an almost round or oval cross-section. In the region of the flattened cross-section of the passage, the cross-sectional contour has a plurality of arcuate sections that are continuous with one another.

Abstract: A gate valve for blocking a pipe, wherein the gave valve comprises a valve body and a wedge, which is insertable into a wedge receptacle disposed in the valve body, wherein the wedge has a wedge plate on at least one side in the passage direction of the pipe, which is disposed on the wedge with a clearance in the direction of the center longitudinal axis of the pipe, wherein the wedge plate is adapted to be pressed by at least one elastic element against the wedge receptacle in the valve body, wherein the at least one elastic element is configured as an approximately circular-shaped circumferential bellows having a central opening.

Abstract: A gate valve includes a valve body and a spindle drive. The spindle drive has, at its one end, a wedge for blocking a pipe. The spindle drive includes a motor-driven spindle, wherein, wherein the spindle is connected by way of a coupling to a shaft in an axially displaceable manner, and the shaft has the wedge at its end.

Abstract: A gate valve includes a valve body and a spindle drive. The spindle drive has, at its one end, a wedge for blocking a pipe. The spindle drive includes a motor-driven spindle, wherein, wherein the spindle is connected by way of a coupling to a shaft in an axially displaceable manner, and the shaft has the wedge at its end.

Abstract: A manifold of a valve conducting gas or liquid has a passage with an inlet and at least one outlet. The passage changes direction from the manifold inlet to the manifold outlet over a length of the passage. The cross-section of the manifold in the region where the passage changes direction, merges in a plurality of sequential sectors from an almost round or oval cross-section over a plurality of cross-sections that are flattened on the inner manifold side again into an almost round or oval cross-section. In the region of the flattened cross-section of the passage, the cross-sectional contour has a plurality of arcuate sections that are continuous with one another.

Abstract: A cock fitting includes a cock plug disposed in a housing. The cock plug is connected to a drive arrangement for lifting and subsequent rotation of the cock plug, wherein the drive arrangement is configured to operate hydraulically for lifting as well as for rotating the cock plug.

Abstract: A gate valve for blocking a pipe, wherein the gave valve comprises a valve body and a wedge, which is insertable into a wedge receptacle disposed in the valve body, wherein the wedge has a wedge plate on at least one side in the passage direction of the pipe, which is disposed on the wedge with a clearance in the direction of the center longitudinal axis of the pipe, wherein the wedge plate is adapted to be pressed by at least one elastic element against the wedge receptacle in the valve body, wherein the at least one elastic element is configured as an approximately circular-shaped circumferential bellows having a central opening.