Proportional Directional Valve 4WRZ25W6-325-7X/6EG24N9K4/D3M - Bosch Rexroth R900958570

Anyone tying a valve into an existing pilot circuit does not always know its pressure level exactly. The 4WRZ25W6-325-7X/6EG24N9K4/D3M removes that uncertainty because it limits control pressure internally, and it controls 325 l/min nominal flow.

Benefits

• Internal pressure limiting of the pilot stage, the existing circuit pressure does not have to be adjusted.
• External supply and external return, working circuit and pilot circuit stay separate.
• 325 l/min nominal flow, flow up to 870 l/min, spool symbol W6 in size 25.
• 20.85 kg weight, 350 bar maximum operating pressure, ISO 4401-08-08-0-05 pattern.
• Concealed auxiliary actuation, commanded at 24 VDC through an external amplifier.

Applications

The valve is used when existing plants are extended by a controlled axis, for example on press lines and test rigs. The existing pilot circuit can stay as it is, because the valve settles on its own demand. Pilot supply and return are led outside.

Manufacturer

Bosch Rexroth, material number R900958570. Permitted circuit pressure, reduced pilot pressure and characteristic curves are given in data sheet RE 29115, with RE 07600-B for further reading.