Proportional Directional Valve 4WRZ25W6-220-7X/6EG24ETK4/D3M - Bosch Rexroth R901363326

In series machine building the same valve version should sit on every axis, even when customers run different system pressures. The 4WRZ25W6-220-7X/6EG24ETK4/D3M limits its pilot pressure itself and controls 220 l/min nominal flow.

Benefits

• Built-in pressure reducing valve, the same version suits different system pressures up to 350 bar.
• Internal supply and internal return, pipework is identical on all variants.
• 220 l/min nominal flow, flow up to 870 l/min, spool symbol W6 in size 25.
• 20.38 kg weight, ISO 4401-08-08-0-05 pattern, four ports, three switching positions.
• NBR seals, HL hydraulic fluid, 24 VDC through a 7-pole (6 + PE) plug to EN 175201-804.

Applications

This is meant for product lines shipped in several equipment levels whose hydraulics are laid out differently per application. One valve type for all levels keeps documentation and spare part stock lean. The axis is controlled through an external amplifier.

Manufacturer

Bosch Rexroth, material number R901363326. The set pilot pressure and the characteristic curves are given in data sheet RE 29115, with RE 07600-B for further reading.