Proportional Directional Valve 4WRZ10W8-85-7X/6EG24N9ETK4/M - Bosch Rexroth R900978919

This variant combines the spool to symbol W8 with a nominal flow of 85 l/min. As pilot oil is fed in and returned internally, the valve needs no additional lines. At maximum, 170 l/min at 315 bar are allowed.

Benefits

• Nominal flow 85 l/min, maximum flow 170 l/min
• Symbol W8 in 3 switching positions across 4 ports
• Internal pilot oil supply and internal pilot oil return, so no extra piping is needed
• Concealed auxiliary actuation for commissioning and fault finding
• Operating pressure up to 315 bar, subplate mounting to ISO 4401-05-05-0-05
• NBR seals for HL hydraulic fluid, mass 7.72 kg

Applications

The valve controls axes with high oil demand in presses, machine tools and test rigs. Internal pilot routing keeps the number of connections on the manifold low.

Manufacturer

Bosch Rexroth lists this item of product family 4WRZ(E) under material number R900978919. Dimensional drawings, characteristic curves and installation notes are given in data sheet RE 29115, the series overview is RE 07600-B.