Valve with bendable actuating element

A valve features a deflectable actuating element that controls the movements of at least one actual sealing element for opening and/or closing at least one sealing contour, and the actuating element is loaded via an elastic element essentially perpendicularly relative to the direction of the deflection; and the longitudinal axis of the actuating element and the force applied by the elastic element are aligned in a position of the actuating element that is between its two extreme positions. The actuating element is preferably an unilaterally loaded piezoelectric bending transducer, and the sealing element is preferably a toggle that has the ability to swing around an axis arranged perpendicularly relative to the direction of the deflection of the actuating element.