Proportional Directional Valve 4WRZ10W9-85-7X/6EG24ETK4/D3M - Bosch Rexroth R900741478

A tightly packed control block rarely has room for extra pilot oil lines. The 4WRZ10W9-85-7X/6EG24ETK4/D3M therefore takes its pilot oil internally from the main channel and returns it internally, working proportionally with spool symbol W9 at 85 l/min nominal flow.

Benefits

• Internal pilot oil supply and internal pilot oil return, so the block needs no X and Y lines.
• Spool symbol W9 in size 10 with 3 switching positions and 4 ports.
• Maximum flow of 170 l/min at a nominal flow of 85 l/min.
• 315 bar maximum operating pressure with NBR seals for HL hydraulic fluid.
• Built-in pressure reducing valve gives the pilot stage a limited and steady control pressure.
• 8.25 kg weight, wired through a 7-pole (6 + PE) connector to EN 175201-804 on 24 V DC.

Applications

The valve fits densely built control blocks on machine tools and test benches where system pressure is steady enough for internal piloting. Control is handled by external electronics. Subplate mounting follows ISO 4401-05-05-0-05.

Manufacturer

Bosch Rexroth, material number R900741478, product family 4WRZ(E). Characteristic curves and installation dimensions are given in the datasheets Proportional directional valve, pilot-operated (RE 29115) and Hydraulic valves and hydro- (RE 07600-B).