Hydraulic valves that are electrically operated by proportional solenoids are classified as proportional valves. Bosch Rexroth offers the widest variety and range of proportional valves of any manufacturer, with performance proven in millions of operational hours.
Rexroth’s rugged valves fit perfectly into automated electrohydraulic control applications. We also offer proportional directional control, proportional relief, proportional pressure reducing, proportional flow control, and proportional throttle valves.
And as an industry leader in the development of intelligent hydraulics, most Rexroth proportional and servo hydraulic valves have the option for integrated electronics or separate amplifiers.
Bosch Rexroth Proportional Pressure Reducing Valves - A Wide Range of Pressure Control Functions By regulating downstream pressure in a branch circuit, proportional pressure reducing valves allow this set limit to be adjusted by electronic control. Rexroth reducing valves are optimized to reduce the effect of pressure changes due to varying flow rates. Their excellent transient response prevents excess pressure or overshoot, […] Bosch Rexroth Directional Servo Valves - Dynamic Response for Intelligent Hydraulic Systems Used in closed loop control system applications, electrohydraulic servo valves have the highest dynamic response for intelligent hydraulics systems. With the appropriate system feedback and controller design, Rexroth hydraulic servo valves are unsurpassed in controlling pressure, flow, or position. Servo valves are appropriate for systems with one or more […] Bosch Rexroth Proportional Flow Control Valves - Optimizing Machine and Assembly Line Performance Electronically adjusted orifices with pressure compensation, proportional flow control valves have an integrated compressor or hydrostatic that limits the pressure differential across the throttling orifice. This keeps the flow, or actuator speed, constant when the load forces change. It’s one more example of how Rexroth intelligent hydraulics lets you […] Bosch Rexroth Proportional Pressure Control Valves - Improving Machine and Manufacturing Productivity Proportional pressure relief valves limit the pressure in a hydraulic circuit and allow this set limit to be adjusted by electronic control. While relieving pressure, excess flow is returned to a hydraulic reservoir tank, to improve machine efficiency and manufacturing productivity. Rexroth has developed multiple direct and pilot operated designs […] Bosch Rexroth Proportional Directional Control Valves - Improving Performance and Accuracy Standard directional proportional valves are perfect for many hydraulics applications. There are low cost designs without spool feedback for manual and open loop control applications. These can be direct or pilot operated. General purpose valves have better axis performance and accuracy, and Rexroth has implemented valve design improvements that have reduced […]