Proportional Directional Valve 4WRZ32W9-520-7X/6EG24N9ETK4/M - Bosch Rexroth R901050898

In densely populated size 32 valve blocks there is rarely room for additional pilot drillings. The 4WRZ32W9-520-7X/6EG24N9ETK4/M solves that with internal pilot oil supply and internal return, and still provides 520 l/min nominal flow.

Key benefits

• Pilot oil fed and drained internally, the subplate needs no pilot drillings.
• 520 l/min nominal flow, maximum flow 1600 l/min, operating pressure up to 350 bar.
• Spool symbol W9, 3 switching positions, 4 ports, connection pattern ISO 4401-10-09-0-05.
• 40.2 kg weight in size 32, NBR seals for HL hydraulic fluid.
• Concealed manual override for commissioning and emergency travel, without pilot pressure reducing valve.
• Driven by external electronics, 24 VDC supply, 3-pole connector (2 + PE).

Applications

Meant for retrofits on blocks whose drilling pattern is not to be changed again. A closed pilot circuit shortens assembly and reduces the number of sealing points. With 520 l/min nominal flow the valve suits main cylinders on presses and hoists.

Manufacturer

Bosch Rexroth, material number R901050898. Characteristic curves, performance limit and mounting dimensions are given in the data sheet for type 4WRZ32W9-520-7X/6EG24N9ETK4/M.