Proportional Directional Valve 4WRKE25W8-220L-3X/6EG24ETK31/A1D3M - Bosch Rexroth R900718022

Retrofits often fail because the existing manifold has no X and Y bores. In version ETK the 4WRKE25W8-220L-3X avoids that problem through internal pilot oil routing and accepts the command value as a ±10 V voltage, at 220 l/min nominal flow and operating pressure up to 350 bar.

Benefits

• Internal pilot oil supply and internal pilot oil return, fits manifolds without X and Y bores
• ±10 V command value, 24 V DC supply, 7-pole connector (6 + PE)
• 220 l/min nominal flow, flow rate up to 870 l/min
• Spool symbol W8, operating pressure up to 350 bar
• 17.9 kg weight, NBR seals for HL hydraulic fluid

Applications

Replacing an older proportional valve then works without modifying the manifold, as long as the ISO 4401-08-08-0-05 interface is present. Applications are feed axes, lifting gear and clamping systems. The return should be connected without pressure.

Manufacturer

Bosch Rexroth, material number R900718022. The type code 4WRKE25W8-220L-3X/6EG24ETK31/A1D3M defines size, spool symbol, pilot oil routing and command value type without ambiguity.