Abstract: The invention relates to a valve for controlling a fluid flow from a first environment to a second environment, having a frame for disposing a separating element in the region of an opening, said element separating the first environment from the second environment, and a first flap and a second flap for controlling the fluid flow through the opening between the first environment and the second environment, the flaps being movable in the frame. The flaps have protrusions designed to reduce noise generation in the fluid flow.

Abstract: The invention relates to a valve for controlling the internal pressure in a cabin of an aircraft. First and second flaps supported in a frame control a fluid flow between the environment and the cabin through an opening of the valve. The first flap is supported at a distance from a front edge of the frame and the second flap is supported on a rear edge of the frame. A closing device closes an outflow opening (56) in an inflow position of the flaps, which outflow opening is bounded by the flaps. The closing device is pivotably supported on one of the flaps, and interacts with the locking device in such a way that the closing device closes the outflow opening in the event of a pivoting motion of the flaps.

Abstract: The invention relates to a valve for controlling the internal pressure in a cabin of an aircraft. First and second flaps supported in a frame control a fluid flow between the environment and the cabin through an opening of the valve. The first flap is supported at a distance from a front edge of the frame and the second flap is supported on a rear edge of the frame. A closing device closes an outflow opening (56) in an inflow position of the flaps, which outflow opening is bounded by the flaps. The closing device is pivotably supported on one of the flaps, and interacts with the locking device in such a way that the closing device closes the outflow opening in the event of a pivoting motion of the flaps.

Abstract: The invention relates to a valve for controlling a fluid flow from a first environment to a second environment, having a frame for disposing a separating element in the region of an opening, said element separating the first environment from the second environment, and a first flap and a second flap for controlling the fluid flow through the opening between the first environment and the second environment, the flaps being movable in the frame. The flaps have protrusions designed to reduce noise generation in the fluid flow.