Proportional Directional Valve 4WRDE25VN350L-6X/MXY/24A5 - Bosch Rexroth R901562096

Without position feedback on the main spool, the opening of a large valve depends on flow forces and temperature. The 4WRDE25VN350L-6X/MXY/24A5 measures the spool position internally and corrects it, at 350 l/min nominal flow, 870 l/min maximum, and 350 bar operating pressure. The electronics are mounted on the valve and process the ±10 V command value.

Key benefits

• Internal spool position feedback for repeatable opening cross sections regardless of flow forces.
• 350 l/min nominal flow and 870 l/min peak at 350 bar operating pressure.
• On-board electronics with an analog ±10 V command value, 24 VDC supply.
• Spool symbol V with a linear characteristic, 3 switching positions, 4 ports.
• Mounting pattern ISO 4401-08-08-0-05, subplate mounting in size 25.
• NBR seals for HL hydraulic fluid, 17.5 kg valve mass.

Applications

The valve belongs on large controlled axes in presses, injection moulding machines and test rigs that need fast traverse and precise creep speed within one cycle. Pilot oil supply and pilot oil return are external, so the system provides its own pilot supply and its own return line. When HFC fluids are planned, the NBR seals have to be taken into account.

Manufacturer

Bosch Rexroth, material number R901562096. The number identifies the characteristic curve, the seal material and the electronics version, so it belongs in every enquiry.