Proportional Directional Valve 4WRTE25V1-220P-4X/6EG24EK31/F1M - Bosch Rexroth R901317685

A differential cylinder pushes and pulls across unequal piston areas, so its control valve needs metering edges to match. That is what spool symbol V1 in the 4WRTE25V1-220P-4X/6EG24EK31/F1M provides, at 220 l/min nominal flow and 350 bar operating pressure.

Benefits

• Spool symbol V1 compensates the area ratio of a differential cylinder, so the controller does not have to correct for it.
• 220 l/min nominal flow, peaking at 870 l/min, for brisk strokes in size 25.
• Internal pilot oil supply saves a separate pilot line, while external pilot oil return keeps surges out of the tank line.
• The 4 ... 20 mA command input stays clean in plants with long cable runs and strong drives.
• Operating pressure up to 350 bar at a valve mass of 18.06 kg, full duty without a special subplate.

Applications

Feed and press axes built around differential cylinders, for example in sheet metal machinery and clamping units. A current command suits installations where cabinet and valve sit far apart. Mounting pattern ISO 4401-08-08-0-05 makes replacement of an existing size 25 valve straightforward.

Manufacturer

Bosch Rexroth, material number R901317685. Electrical connection uses a 7-pole connector (6 + PE) to EN 175201-804.