Setting drive for large industrial valves has the setting drive and the control system integrated within a common housing with virtual elimination of relative oscillations between the control and the drive

摘要

The setting drive, using a pressure medium, has a control system where the pneumatic control unit (20) and the setting drive with the drive cylinders (1,2) are integrated within a common housing (10). The path or angle sensor (6) is directly at the drive shaft (3) of the setting drive. The electronics for the control unit (20) are incorporated into the same housing (10). The control is a cascade control unit.