Proportional Directional Valve 4WRZ10W8-85-7X/6EG24N9K4/M - Bosch Rexroth R900965493

Smooth motion on cylinders and hydraulic motors calls for a spool that opens in proportion to the command signal. The 4WRZ10W8-85-7X/6EG24N9K4/M handles 85 l/min nominal flow and allows up to 170 l/min through the main channel.

Benefits

• 85 l/min nominal flow in size 10, up to 170 l/min through the main channel.
• Spool symbol W8, 3 switching positions and 4 ports on the ISO 4401-05-05-0-05 pattern.
• Pilot oil fed in and drained externally, so the pilot stage stays independent of the main channel.
• 315 bar maximum operating pressure with NBR seals for HL hydraulic fluid.
• Concealed manual override at 7.74 kg, driven by external electronics on 24 VDC through a 7-pole (6 + PE) plug to EN 175201-804.

Applications

The valve controls feed axes on machine tools, presses and test rigs whose speed is set as an analogue command value. Because pilot supply and pilot drain both run externally, the pilot circuit can be fed on its own and its return kept free of back pressure. In a repair it fits existing size 10 subplates without changes to the piping.

Manufacturer

Bosch Rexroth lists this item under material number R900965493, product family 4WRZ(E). Characteristic curves and limit values are given in datasheet Proportional directional valve, pilot-operated (RE 29115) and Hydraulic valves and hydro- (RE 07600-B).