Proportional Directional Valve 4WRZE25W9-220-7X/6EG24N9ETK31/A1D3M - Bosch Rexroth R900751428

The fewer ports a hydraulic manifold needs, the faster it is machined. The 4WRZE25W9-220-7X/6EG24N9ETK31/A1D3M manages with internal pilot oil supply and internal return while controlling 220 l/min nominal flow in size 25.

Benefits

• Internal piloting in both directions, so neither an X nor a Y port is required on the manifold.
• 220 l/min nominal flow, 870 l/min maximum flow, operating pressure up to 350 bar.
• Pressure reducing valve in the pilot circuit keeps pilot pressure taken from the working circuit constant.
• Command value ±10 V DC, 24 V DC through a 7-pole connector (6 + PE) to EN 175201-804.
• Symbol W9, three switching positions, concealed auxiliary actuation, weight 20.74 kg.

Applications

The valve fits standard power units on presses, lift tables and clamping systems where no pilot circuit was planned. Installation is limited to mounting pattern ISO 4401-08-08-0-05 and the electrical connection. Working pressure must stay permanently above the minimum pilot pressure of the range.

Manufacturer

Bosch Rexroth, material number R900751428. Minimum pilot pressure and characteristic curves are in data sheet RE 29115, RE 07600-B adds the general data.