A valve for a hydraulic door actuating device, wherein • the door actuating device - is adapted to open and/or to close a connected door, and - includes a housing, and • the valve - is adapted to be inserted into the housing of the door actuating device, while influencing a flow of hydraulic fluid in the door actuating device, and includes - a bushing, - a slider or a valve body, which o is longitudinally guided within the bushing, o is pre-tensioned by a return spring along the longitudinal displaceability of the bushing, o has a stop face, by means of which, on account of the action of the return spring, the slider, in a fluid sealing manner, bears against a counter-edge, which is configured at the bushing, and thereby blocks the flow of hydraulic fluid, and - and the slider is configured to be mechanically charged from the outside against the action of the return spring and away from the counter edge. - an attachment block, o into which the bushing is inserted, and o which is configured to be stationarily inserted into the door actuating device, as well as - comprises an adjusting portion, which o is disposed to be longitudinally movable within the attachment block and disposed to be freely rotatable, o is in engagement with the bushing in such a way that, upon its longitudinal movement in the attachment block, the bushing is entrained such that a position of bushing and slider within the attachment block is adjustable to the respective door actuating device, characterized in that the stop face is disposed at an angle (α), which in the direction of the slider, respectively of the valve body, is acute and amounts to approximately 60 °, and is disposed to be inclined with regard to the longitudinal axis such that the counter-edge and the stop face always punctually touch each other along a straight line or a curve. • the door actuating device - is adapted to open and/or to close a connected door, and - includes a housing, and - is adapted to open and/or to close a connected door, and - includes a housing, and • the valve - is adapted to be inserted into the housing of the door actuating device, while influencing a flow of hydraulic fluid in the door actuating device, and includes - a bushing, - a slider or a valve body, which o is longitudinally guided within the bushing, o is pre-tensioned by a return spring along the longitudinal displaceability of the bushing, o has a stop face, by means of which, on account of the action of the return spring, the slider, in a fluid sealing manner, bears against a counter-edge, which is configured at the bushing, and thereby blocks the flow of hydraulic fluid, and - and the slider is configured to be mechanically charged from the outside against the action of the return spring and away from the counter edge. - an attachment block, o into which the bushing is inserted, and o which is configured to be stationarily inserted into the door actuating device, as well as - comprises an adjusting portion, which o is disposed to be longitudinally movable within the attachment block and disposed to be freely rotatable, o is in engagement with the bushing in such a way that, upon its longitudinal movement in the attachment block, the bushing is entrained such that a position of bushing and slider within the attachment block is adjustable to the respective door actuating device, - is adapted to be inserted into the housing of the door actuating device, while influencing a flow of hydraulic fluid in the door actuating device, and includes - a bushing, - a slider or a valve body, which o is longitudinally guided within the bushing, o is pre-tensioned by a return spring along the longitudinal displaceability of the bushing, o has a stop face, by means of which, on account of the action of the return spring, the slider, in a fluid sealing manner, bears against a counter-edge, which is configured at the bushing, and thereby blocks the flow of hydraulic fluid, and o is longitudinally guided within the bushing, o is pre-tensioned by a return spring along the longitudinal displaceability of the bushing, o has a stop face, by means of which, on account of the action of the return spring, the slider, in a fluid sealing manner, bears against a counter-edge, which is configured at the bushing, and thereby blocks the flow of hydraulic fluid, and - and the slider is configured to be mechanically charged from the outside against the action of the return spring and away from the counter edge. - an attachment block, o into which the bushing is inserted, and o which is configured to be stationarily inserted into the door actuating device, as well as o into which the bushing is inserted, and o which is configured to be stationarily inserted into the door actuating device, as well as - comprises an adjusting portion, which o is disposed to be longitudinally movable within the attachment block and disposed to be freely rotatable, o is in engagement with the bushing in such a way that, upon its longitudinal movement in the attachment block, the bushing is entrained such that a position of bushing and slider within the attachment block is adjustable to the respective door actuating device, o is disposed to be longitudinally movable within the attachment block and disposed to be freely rotatable, o is in engagement with the bushing in such a way that, upon its longitudinal movement in the attachment block, the bushing is entrained such that a position of bushing and slider within the attachment block is adjustable to the respective door actuating device,