Proportional Directional Valve 4WRZ10W6-85-7X/6EG24ETK4/D3V - Bosch Rexroth R978909359

The 4WRZ10W6-85-7X/6EG24ETK4/D3V proportional directional valve controls direction and quantity of oil flow in one step. At 85 l/min nominal flow and up to 170 l/min total flow it withstands an operating pressure of 315 bar.

Advantages

• Nominal flow of 85 l/min, total flow up to 170 l/min in size 10.
• Pressure reducing valve in the pilot stage, which keeps pilot pressure limited inside the valve.
• Internal pilot oil supply and internal pilot oil return, so no extra pilot line is needed.
• Symbol W6 with three switching positions, connection diagram ISO 4401-05-05-0-05.
• Driven by external electronics at 24 VDC, electrical connection to EN 175201-804.
• FKM seals for HL hydraulic fluid, weight 8.24 kg.

Application

Proportional valves of this series drive axes that have to accelerate gently and stop accurately, for instance in presses, test rigs and plastics machinery. The command value comes from the higher level control through external amplifier electronics. At 315 bar there is reserve for load peaks.

Manufacturer

Bosch Rexroth lists the valve under material number R978909359. Flow gain curves and installation dimensions are given in the data sheet in the download section.