Proportional Directional Valve 4WRKE25W6-220L-3X/6EG24ETK31/A1D3M - Bosch Rexroth R901031447

The fewer lines that hang off a valve station, the fewer places it can leak. The 4WRKE25W6-220L-3X/6EG24ETK31/A1D3M works without external pilot oil ports because supply and return are both internal, while metering 220 l/min nominal flow at 350 bar.

Key benefits

• Internal pilot oil supply and internal return, the manifold needs no extra pilot lines.
• 220 l/min nominal flow, maximum flow 870 l/min, operating pressure up to 350 bar.
• Plus minus 10 V command into the on-board electronics, supplied with 24 VDC.
• Spool symbol W6, 3 switching positions, 4 ports, connection pattern ISO 4401-08-08-0-05 in size 25.
• Internal spool position feedback, linear characteristic curve, NBR seals for HL hydraulic fluid.
• 17.86 kg weight, 7-pole connector (6 + PE) to EN 175201-804.

Applications

A good fit for compact valve stations in machine tools and test rigs, where every extra pipe costs space and adds a sealing point. The plus minus 10 V voltage command suits most axis controllers and analogue cards. At 220 l/min nominal flow the valve covers medium cylinder speeds.

Manufacturer

Bosch Rexroth, material number R901031447. The type code 4WRKE25W6-220L-3X/6EG24ETK31/A1D3M states size 25, spool symbol W6, 220 l/min nominal flow and series 3X.