Proportional Directional Valve 4WRZ10E1-85-7X/6EG24N9K4/M - Bosch Rexroth R900740469

When an existing axis is converted to spool symbol E1, the nominal flow has to match the cylinder size. The 4WRZ10E1-85-7X/6EG24N9K4/M brings 85 l/min nominal flow and allows 170 l/min in the main channel.

Benefits

• Spool symbol E1 at 85 l/min nominal flow, the faster grading of this spool form.
• 3 switching positions, 4 ports on the ISO 4401-05-05-0-05 pattern.
• Pilot oil in and out externally, pilot pressure and drain stay on separate lines.
• 315 bar operating pressure at 7.72 kg, NBR seals for HL hydraulic fluid.
• Concealed manual override, wired through a 7-pole (6 + PE) plug to EN 175201-804.

Technical data

Applications

Applications run from feed axes on machine tools to die cushions and test cylinders. Since both pilot oil paths are external, one shared pilot pump can feed several valves in a manifold while the pilot return goes to tank on its own line. The concealed manual override lets the axis be moved when the electronics have failed.

Manufacturer

At Bosch Rexroth the article runs under material number R900740469 within product family 4WRZ(E). Mounting dimensions and characteristic curves are documented in datasheet Proportional directional valve, pilot-operated (RE 29115) and Hydraulic valves and hydro- (RE 07600-B).