Valve for controlling fluid flow, has valve housing and valve element, where valve element is driven by control pressure that is applied to drive surface, where control unit is provided for providing control pressure

摘要

The valve (1) has a valve housing (2) and a valve element (3), where the valve element is driven by a control pressure that is applied to a drive surface (15), where a control unit (16) is provided for providing the control pressure. The control unit is formed as Bernoulli-suction device (22) that is passed-through in the operation of the drive fluid that stands under low pressure. The Bernoulli-suction device has a low-pressure side (23) opposite-lying with distance to the drive surface.