Proportional Directional Valve 4WRZ25W6-325-7X/6EG24N9EK4/D3V - Bosch Rexroth R900947184

When the tank channel of a manifold carries pressure, the pilot stage must not drain there. The 4WRZ25W6-325-7X/6EG24N9EK4/D3V therefore takes pilot oil internally and leads it out through a separate port, at a rated flow of 325 l/min.

Benefits

• Rated flow of 325 l/min in size 25, with up to 870 l/min across the valve.
• Internal pilot oil supply and external pilot oil return on the pilot-operated main stage.
• Spool symbol W6 with three switching positions across four ports.
• Separate port for the pilot oil return, independent of back pressure in the tank channel.
• 20.2 kg, FKM seals, operating pressure up to 350 bar, connection diagram ISO 4401-08-08-0-05.

Applications

This case occurs when several valves work into the same return line or a cooler sits in the tank path. Symbol W6 is chosen for axes that behave differently in each direction of travel. The amplifier card stays outside the valve.

Manufacturer

At Bosch Rexroth the item runs under material number R900947184 within product family 4WRZ(E). Characteristic curves, limits and mounting dimensions are given in datasheet Proportional directional valve, pilot-operated (RE 29115) and Hydraulic valves and hydro- (RE 07600-B).