Proportional Directional Valve 4WRDE25V1-350L-6X/VXYWG/24A1 - Bosch Rexroth R901544861

The job is accurate directional control rather than plain switching. Internal spool position feedback closes the loop inside the valve and the on-board electronics compare actual and command value. With 350 l/min nominal flow in size 25, headroom to 870 l/min and 350 bar operating pressure, the valve covers fast axes. The command value arrives as a ±10 V voltage signal.

Key benefits

• Internal spool position feedback with on-board electronics, the control loop stays inside the valve
• 350 l/min nominal flow in size 25, flow ceiling 870 l/min
• Spool symbol V1 with a linear characteristic, 3 switching positions and 4 ports
• 350 bar maximum operating pressure, connection diagram ISO 4401-08-08-0-05
• Command value ±10 V, 24 VDC supply through a 7-pole connector (6 + PE) to EN 175201-804
• 17.5 kg weight, FKM seals for HL hydraulic fluid

Technical data

Applications

Suited to test rigs, simulators and forming machines where an axis has to track a reference profile. The linear characteristic of symbol V1 simplifies tuning of the outer loop because flow follows the command value proportionally. External pilot oil supply and external pilot oil return keep the pilot stage separate from the working circuit.

Manufacturer

Bosch Rexroth, material number R901544861, 4WRDE range in size 25, subplate mounting to ISO 4401-08-08-0-05.