Proportional Directional Valve 4WRZ25E1-325-7X/6EG24N9EK4/V - Bosch Rexroth R901174913

Back pressure in the tank line shifts the null position of a pilot-operated axis as soon as several actuators drain at once. The 4WRZ25E1-325-7X/6EG24N9EK4/V takes its pilot oil internally from the P channel yet drains it through a port of its own, at 325 l/min nominal flow.

Benefits

• Internal pilot oil supply, external pilot oil return, independent of back pressure in the tank line
• Nominal flow 325 l/min, maximum flow 870 l/min
• Spool symbol E1, 3 switching positions, maximum operating pressure 350 bar
• Concealed auxiliary actuation for commissioning as well as fault finding
• External electronics, 24 VDC, 7-pole connector (6 + PE) to EN 175201-804
• FKM seals, weight 19.92 kg, connection diagram ISO 4401-08-08-0-05

Application

Suited to manifolds where several large axes drain into the same tank line. The dedicated return holds the pilot chamber at tank level while the main stage passes up to 870 l/min. HL hydraulic fluid is released for operation.

Manufacturer

Bosch Rexroth, material number R901174913, type designation 4WRZ25E1-325-7X/6EG24N9EK4/V. Further values are given in the data sheet Proportional directional valve, pilot-operated (RE 29115) and Hydraulic valves and hydro- (RE 07600-B).