Hydraulic valve has sensor with sensing element in contact with peripheral valve piston contact area generating electrical or electronic signal depending on piston position changes

摘要

The valve has a valve housing (2) with a valve piston bore (9) and a movable valve piston (7) with a sensor (20) in at least one region of the bore. The sensor has a sensing element (24) in contact with the periphery of the piston in a piston contact area (12) and generates an electrical or electronic output signal depending on positional variations of the valve piston.