Proportional Directional Valve 4WRZE10W9-85-7X/6EG24K31/F1D3V - Bosch Rexroth R900720749

Between direct operated size 6 valves and the heavy sizes from 16 upwards sits the range covered by size 10. The 4WRZE10W9-85 meters 85 l/min nominal here, takes 315 bar operating pressure and puts only 8.51 kg on the subplate. Its pilot stage is supplied and relieved externally, so pilot pressure can be set independently of working pressure.

Benefits

• Size 10 with 85 l/min nominal and a 170 l/min limit, distinctly lighter than a size 16 body.
• Only 8.51 kg valve weight, which relieves manifolds and moving assemblies.
• Operating pressure 315 bar, port pattern to ISO 4401-05-05-0-05.
• Command value 4...20 mA with on-board electronics mounted on the valve.
• FKM seals for elevated temperatures and more demanding hydraulic fluids.
• Spool symbol W9 with 3 switching positions and an integrated pressure reducing valve in the pilot stage.

Applications

The valve suits feed and infeed axes, medium duty test rigs and handling equipment. Its external pilot routing matches power units that run a dedicated pilot pump. Symbol W9 opens a defined bypass in mid position, which fits circuits that should be relieved at standstill.

Manufacturer

The Bosch Rexroth material number is R900720749. 2 manufacturer datasheets document step response, frequency response and mounting dimensions.