Valve control element with magneto drive - has reversing element, actuated by pressure on medium feed side

摘要

The control element has a drive unit, and an elastic return element, The drive unit has a pressure chamber, connected via a pipe to the medium feed side of the valve. The pipe (60) contains a reversing element (61), which is controlled dependent upon the pressure on the medium feed side (10). In a first position, the element connects the pressure chamber (48) to the medium feed side; in a second position, it connects the pressure chamber to an outlet (610). The reversing element consists of a three-way valve, with magneto drive (62), and several associated signal transmitters (63,64).