Directional Spool Valve H-4WEH25HE6X/6EG24NSK4/B08 - Bosch Rexroth R900779564

If main pressure dips briefly during reversal, an internally piloted valve loses its pilot pressure. The H-4WEH25HE6X/6EG24NSK4/B08 therefore takes its pilot oil from outside and returns it externally as well. In size 25 it switches up to 700 l/min at 350 bar.

Benefits

• External pilot supply and external return for reliable reversal.
• Flow up to 700 l/min, operating pressure to 350 bar.
• Spool symbol E with three switching positions in size 25.
• Solenoid voltage 24 V DC, connection diagram ISO 4401-08-08-0-05.
• 18.31 kg in weight, NBR seals, four ports.

Applications

It is used in circuits with accumulator operation or strongly changing load, for instance on presses and lifting equipment. A pilot source of its own keeps pilot pressure steady, whatever the main circuit is doing at that moment.

Manufacturer

Bosch Rexroth lists this version under material number R900779564. Further data is given in data sheet RE 24751, with RE 07600-B as a supplement.