Proportional Directional Valve 4WRZ10W9-85-7X/6EG24K4/D3M - Bosch Rexroth R901088667

In circuits whose pressure collapses during the sequence, the pilot stage should stay unaffected. The 4WRZ10W9-85-7X/6EG24K4/D3M is therefore supplied and drained externally through the X and Y lines, working proportionally with spool symbol W9 and 85 l/min nominal flow in size 10.

Benefits

• External pilot oil supply and external pilot oil return, so the pilot stage does not depend on main line pressure.
• Spool symbol W9 with 3 switching positions and 4 ports.
• 85 l/min nominal flow, 170 l/min maximum in size 10.
• 315 bar maximum operating pressure with NBR seals and HL hydraulic fluid.
• Control through external electronics on 24 V DC with a 7-pole (6 + PE) connector to EN 175201-804.
• 8.24 kg weight with subplate mounting to ISO 4401-05-05-0-05.

Applications

Suited to systems with accumulator charging or several consumers on one pump, where system pressure varies. Pilot oil comes from a separate circuit and returns without pressure through Y. An external amplifier card converts the command value into solenoid current.

Manufacturer

Bosch Rexroth, material number R901088667, product family 4WRZ(E). Pilot oil demand, characteristic curves and installation dimensions are given in the datasheets Proportional directional valve, pilot-operated (RE 29115) and Hydraulic valves and hydro- (RE 07600-B).