Proportional Directional Valve 4WRZE10W9-85-7X/6EG24N9EK31/A1D3V - Bosch Rexroth R900736830

The 4WRZE10W9-85-7X/6EG24N9EK31/A1D3V sets direction and rate of the oil flow on axes that alternate between rapid traverse and fine positioning. 85 l/min nominal flow is available up to 315 bar of operating pressure, with 170 l/min at peak. Pilot oil is taken internally from channel P, while the pilot return runs externally through Y, so back pressure in the tank line cannot shift the pilot stage.

Benefits

• Spool symbol W9 with three switching positions and four ports for alternating travel directions.
• Nominal flow 85 l/min, up to 170 l/min at peak, operating pressure to 315 bar.
• Integrated pressure reducing valve holds the pilot level steady regardless of load.
• On-board electronics accept a ±10 V command value, so no separate amplifier is needed.
• FKM seals and mounting pattern ISO 4401-05-05-0-05 at a valve weight of 8.48 kg.

Application

Typical installations are presses, injection moulding machines and test rigs where an axis is braked from rapid travel into a defined stop. Mineral oil of class HL is the intended fluid, and the FKM seals also also tolerate higher oil temperatures. The concealed manual override moves the axis while the electronics are dead. Conformity is declared to UKCA.

Manufacturer

Bosch Rexroth AG, material number R900736830, product family 4WRZ(E), size 10. All characteristic curves and installation dimensions are listed in data sheet RE 29115 and in data sheet RE 07600-B.