A closure device for containers comprises a lid having a spout (4) with holes (4a), a valve body (9) attached to the lid (4) and operable on the spout (4). The valve body (9) comprises a cup-shaped element (10) having a blind bottom wall (10a) and a side wall (10b) that emerges from the bottom wall (10a) and delimits an upper opening, the side wall (10b) of the cup-shaped element (10) being made of a resilient material, and at least partially contacting a first sleeve (5) of the lid (2), which is in fluid communication with the spout (4). The side wall (10b) of the cup-shaped element (10) contacts the first sleeve (5) in a fluid-tight manner and moves away from the first sleeve (5) in response to a negative pressure introduced through the spout (4).