Proportional Directional Valve 4WRZE10E50-7X/6EG24N9EK31/F1V - Bosch Rexroth R901122587

An axis has to move from rapid traverse into creep speed without slamming at reversal. The pilot-operated 4WRZE10E50-7X/6EG24N9EK31/F1V takes on exactly that motion task, converting a 4...20 mA current command into spool travel. At 50 l/min nominal flow the speed stays finely adjustable, while the valve covers operating pressures up to 315 bar and peak flow up to 170 l/min.

Benefits

• 4...20 mA command - a current input keeps its accuracy over long cable runs, and a broken wire is noticed at once because the live zero current disappears.
• On-board electronics - the control amplifier sits on the valve, so only the 24 VDC supply and the command signal are wired through the 7-pole (6 + PE) connector to EN 175201-804.
• Spool symbol E - control edges for 4 ports and 3 switching positions, matched to axes that accelerate out of mid position in both directions.
• Internal pilot oil supply - pilot oil is taken from the main channel, so a separate control pressure line is not required, and pilot oil return is routed externally.
• Mounting pattern ISO 4401-05-05-0-05 - size 10 subplate mounting, the valve fits existing subplates and manifolds of this size.
• FKM seals - released for HL hydraulic fluid, valve weight 8.02 kg.

Technical data

Applications

Typical duties are feed and positioning axes on presses, injection moulding machines and test rigs where the controller issues flow demand as a current signal. With the electronics integrated, the axis needs no separate amplifier card in the cabinet. Where long cable routes separate controller and valve, the current interface is the less sensitive choice compared with a voltage command.

Manufacturer

Bosch Rexroth, material number R901122587. Characteristic curves, mounting dimensions and pilot circuit details are documented in the data sheet Proportional directional valve, pilot-operated (RE 29115), and the range overview is Hydraulic valves and hydro- (RE 07600-B).