Proportional Directional Valve 4WRZE32E520-7X/6EG24N9EK31/F1V - Bosch Rexroth R978911512

A return line under back pressure distorts the pilot stage and costs accuracy. The 4WRZE32E520-7X/6EG24N9EK31/F1V takes its pilot oil internally and discharges it externally through a dedicated port, at 520 l/min nominal flow with spool symbol E.

Benefits

• Internal pilot oil supply with external pilot oil return, piloting free of back pressure
• 520 l/min nominal flow, maximum flow 1600 l/min
• Setpoint 4 to 20 mA for long signal runs
• Spool symbol E, maximum operating pressure 350 bar in size 32
• Concealed auxiliary actuation, version without pressure reducing valve
• FKM seals for HL, 44 kg weight, UKCA conformity

Applications

Useful wherever the shared tank return carries pressure, for example with filter and cooling circuits in the return line. The separate pilot drain routes the pilot stage past that counterforce. Typical applications are large presses and rolling mill axes.

Manufacturer

Bosch Rexroth, material number R978911512. Installation dimensions, characteristic curves and commissioning notes are contained in data sheet RE 29115 for the pilot-operated proportional directional valve together with the overview RE 07600-B.