Proportional Directional Valve 4WRGE25V1-350L-1X/315G24K31/A1WG152M - Bosch Rexroth R901098344

On a position-controlled axis the decisive figure is not the rating plate but how closely the spool tracks the command. The 4WRGE25V1 measures spool travel internally and corrects it in its own electronics while passing 350 l/min nominal flow at up to 350 bar.

Key benefits

• Internal spool position feedback into the on-board electronics, analog command value ±10 V through the 7-pole connector (6 + PE)
• 350 l/min nominal flow, with peaks of up to 870 l/min
• Operating pressure up to 350 bar across all 4 ports, mounting pattern ISO 4401-08-08-0-05
• Pilot-operated design with external pilot oil supply and external pilot oil return, keeping the pilot stage independent of working pressure
• Spool symbol V1 with 3 switching positions, NBR seals rated to hydraulic fluid HL
• A compact 18.22 kg in this flow class

Applications

Typical duties are position-controlled press axes, test rigs running a travel profile and machine tools where a cylinder has to follow a target curve. Size 25 covers medium to large cylinders as long as the flow stays below 870 l/min. A separate pilot oil circuit with its own supply and return line is required.

Manufacturer

Manufactured by Bosch Rexroth under material number R901098344. Characteristic curves, installation dimensions and tightening torques are covered by the manufacturer documentation issued with that material number.