Proportional Directional Valve 4WRZ25E220-7X/6EG24N9EK4/V - Bosch Rexroth R978918767

A reducing valve in the pilot stage costs height and adds one more adjustment point. The 4WRZ25E220-7X/6EG24N9EK4/V leaves it out because pilot oil already arrives limited, and meters 220 l/min nominal flow in size 25.

Benefits

• Version without an internal pressure reducing valve, pilot pressure comes from the plant.
• 220 l/min nominal flow within a maximum flow of 870 l/min.
• Pilot oil taken internally, returned externally, so the return stays unpressurised.
• FKM seals for circuits in which NBR is not approved.
• 18.2 kg weight, spool symbol E, concealed auxiliary actuation, 350 bar operating pressure.

Applications

The valve is used on plants with a centrally protected pilot circuit, such as test benches and plastics machinery. Concealed auxiliary actuation allows the axis to be moved without energising the coil. Control runs through an external amplifier card at 24 VDC.

Manufacturer

Bosch Rexroth, material number R978918767. Characteristic curves, step responses and dimensions appear in data sheet RE 29115, supplemented by catalogue RE 07600-B.