The present invention relates to a device (12) in order to convey a fluid such as hydraulic fluid, comprising a between a first end point and a second end point of movable piston (30) for conveying the fluid, a line system (34) for the conduction of the fluid through the device (12), and a between a the flow of the fluid releasing open position and a closure position which is capable of interrupting the flow of the fluid movable closure element (40) for selectively release of the flow of fluid through the device (12), wherein the piston (30) includes means (37) for forming a from the fluid to the closing element (40) transmittable force for moving the closure element (40) comprises in the direction of the closed position. The invention also relates to a corresponding braking system (10) and a corresponding method.
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