Proportional Directional Valve 4WRZ25E1-325-7X/6EG24N9TK4/D3M - Bosch Rexroth R900740261

The 4WRZ25E1-325-7X/6EG24N9TK4/D3M controls a nominal flow of 325 l/min in size 25. The pilot oil comes from an external source, the return is internal and the spool symbol is E1.

Benefits

• Nominal flow 325 l/min, maximum flow 870 l/min at 350 bar operating pressure.
• External pilot oil supply, internal return, matched to plants with their own pilot circuit.
• Spool symbol E1 with 3 switching positions and 4 ports.
• External electronics through a 7-pole connector (6 plus PE) to EN 175201-804.
• 20.35 kg, NBR seals, connection diagram ISO 4401-08-08-0-05, 24 V DC supply.

Applications

Large power units often keep a separate pilot circuit at constant pressure. The pilot stage of the valve is fed from it, independently of the state of the main circuit. Switching times therefore stay repeatable even when working pressure varies widely.

Manufacturer

The manufacturer is Bosch Rexroth, material number R900740261, product family 4WRZ(E). Data sheet RE 29115 gives characteristic curves, limit performance and pilot variants, RE 07600-B provides the range overview.