Proportional Directional Valve 4WRKE25W6-350L-3X/6EG24ETK31/A1D3M - Bosch Rexroth R900249275

Older valve stations were frequently built without separate pilot drillings, and a replacement has to live with that. The 4WRKE25W6-350L-3X/6EG24ETK31/A1D3M feeds and drains pilot oil internally and still puts 350 l/min nominal flow at 350 bar onto the axis.

Key benefits

• Internal pilot oil supply and internal return, suitable for manifolds without pilot drillings.
• 350 l/min nominal flow with spool symbol W6, maximum flow 870 l/min.
• Operating pressure up to 350 bar, size 25, connection pattern ISO 4401-08-08-0-05, 3 switching positions.
• Plus minus 10 V command, 24 VDC supply through a 7-pole connector (6 + PE) to EN 175201-804.
• Internal spool position feedback, linear characteristic curve, 4 ports.
• 17.88 kg weight, NBR seals for HL hydraulic fluid.

Applications

Meant for swaps in established installations where the subplate is to stay untouched. Because the valve serves its own pilot circuit, no rework on the block is required. Nominal flow of 350 l/min covers main axes on presses, hoists and forming machines.

Manufacturer

Bosch Rexroth, material number R900249275. The type code 4WRKE25W6-350L-3X/6EG24ETK31/A1D3M states size 25, spool symbol W6, 350 l/min nominal flow and series 3X.