Proportional Directional Valve 4WRKE25W6-220L-3X/6EG24K31/A1D3M - Bosch Rexroth R901022395

Where a separate pilot pump holds pilot pressure steady, the valve must neither tap nor drain internally. The 4WRKE25W6-220L-3X/6EG24K31/A1D3M routes both outward and stays independent of working pressure, 220 l/min nominal flow at up to 350 bar.

Key benefits

• External pilot oil supply and external return decouple pilot pressure from working pressure.
• 220 l/min nominal flow, 870 l/min maximum flow, operating pressure up to 350 bar.
• Spool symbol W6 with 3 switching positions and 4 ports, connection pattern ISO 4401-08-08-0-05.
• Analogue control with a plus minus 10 V command, 24 VDC supply, on-board electronics.
• 17.8 kg weight, NBR seals for HL hydraulic fluid, 7-pole connector (6 + PE).

Applications

The variant belongs in press lines and forming machines whose power unit runs a dedicated pilot circuit. If working pressure collapses during a changeover, pilot control stays supplied and the spool stays controllable. Size 25 and 220 l/min nominal flow cover medium axes.

Manufacturer

Bosch Rexroth, material number R901022395. The type code 4WRKE25W6-220L-3X/6EG24K31/A1D3M states size 25, spool symbol W6, 220 l/min nominal flow and series 3X.