Proportional valves and servo proportional valves are characterized by a number of design features that determine their quality to fit into different applications. PARKER covers NG06,NG10,NG16,NG25,NG32.
Hydraulic valves from Bosch Rexroth control and regulate the volume flow, where the start, stop, direction and volume of the flow can be influenced for one direction of motion or rotation of hydraulic drives. The valves are actuated via various operating methods and in this way, can cause the valve elements to open or close. Bosch Rexroth covers varies valves,direction valves,pressure valves,flow control valves...
MOOG Servovalves and Servo-Proportional Valves are electrohydraulic, continuously acting valves that transform a changing analog or digital input signal into a stepless hydraulic output (flow or pressure).
The term servovalve describes a valve design with bushing spool assembly, characterized by high precision metering edges. The term servo-proportional describes valves with a spool-in-body design.
Moog valves provide precise control of position, velocity, pressure and force.