Rexroth DFR/DFR1 Flow & Pressure Controls
The flow can be mixed by way of the differential pressure in the actuator or orifice (which the orifice is plugged up).
There are different valves for port B
Portable valve obstructs SP 12 RE 64145 Portable valve obstructs SP 18 RE 64148 Portable valve obstructs MP 18 RE 64594 Portable valve obstructs MP 22 RE 64598 Proportional directional valve 4 WRE RE 29060
Below are other charts that show the size, static preferences,dynamic preferences and control information.
If you need more info on these types of controls call us at 800-361-0068