Closed electronic loop

Here's another Flint Hydraulics Tech Tip: The "closed electronic loop" ensures that the valve spool achieves and holds its commanded position. Proportional valves built without integral spool position feedback (many industrial proportional valves) tend to hunt for their command position, resulting in a wash boarding effect of the blade on the ground. For help with your hydraulic circuit, visit us online at http://www.flinthyd.com/engineering_design_services.html.