Proportional Directional Valve 4WRZE25W9-220-7X/6EG24N9K31/F1D3M - Bosch Rexroth R901214474

In large plants the run from the control cabinet to the valve is long, which makes a current command signal the safer choice. The 4WRZE25W9-220-7X/6EG24N9K31/F1D3M accepts 4 to 20 mA and controls 220 l/min nominal flow in size 25 at up to 350 bar.

Benefits

• Command value 4 to 20 mA, insensitive to voltage drop over long cables.
• 220 l/min nominal flow in size 25, with 870 l/min as the maximum flow of the range.
• Integrated pressure reducing valve keeps pilot pressure constant regardless of working pressure.
• Concealed auxiliary actuation allows the axis to be moved when the electrical control fails.
• External pilot oil supply and external return, symbol W9 with three switching positions.
• Weight 20.82 kg, NBR seals, mounting pattern ISO 4401-08-08-0-05.

Applications

The valve works in presses, rolling mills and large test rigs that drive size 25 axes. Concealed auxiliary actuation helps during maintenance and fault finding while preventing accidental operation in service. The external pilot circuit stays capable even at low working pressure.

Manufacturer

Bosch Rexroth, material number R901214474. Characteristic curves and installation dimensions are given in data sheet RE 29115, general notes in document RE 07600-B.