Proportional Directional Valve 4WRZ32W6-520-7X/6EG24N9TK4/D3M - Bosch Rexroth R901026579

At 520 l/min nominal flow an axis moves a lot of oil in a short time, and the pilot stage has to follow that movement cleanly. The 4WRZ32W6-520-7X/6EG24N9TK4/D3M combines external pilot oil with a built-in pressure reducing valve for that.

Benefits

• 520 l/min nominal flow, up to 1600 l/min throughput across 4 ports in size 32.
• Pressure reducing valve in the pilot circuit, the pilot stage works independently of the pressure in the main channel.
• External pilot oil supply, internal return, suited to plants with a central pilot circuit.
• Spool symbol W6, 43.56 kg weight, subplate mounting to ISO 4401-10-09-0-05.
• 350 bar maximum operating pressure, NBR seals, laid out for HL hydraulic fluid.

Applications

The valve serves main axes of large presses, stretching lines and test rigs with big cylinder volumes. Concealed auxiliary actuation allows the hydraulics to be checked before the electronics are wired. Setpoints come from an external amplifier through a 7-pole (6 + PE) plug.

Manufacturer

Bosch Rexroth, material number R901026579. Characteristic curves for 520 l/min are given in data sheet RE 29115.