Proportional Directional Valve 4WRZ10W8-25-7X/6EG24N9ETK4/D3M - Bosch Rexroth R900973088

During a power failure what counts is whether the cylinder can be brought to a safe position by hand. The 4WRZ10W8-25-7X/6EG24N9ETK4/D3M brings a concealed auxiliary actuation for that and otherwise controls at 25 l/min nominal flow.

Benefits

• Concealed auxiliary actuation, the axis can be moved without electronics.
• 25 l/min nominal flow, 170 l/min maximum at 315 bar operating pressure.
• Internal pilot oil supply and internal return, no external pilot lines.
• Spool symbol W8, 3 switching positions, 4 ports on interface ISO 4401-05-05-0-05.
• 8.26 kg, 24 VDC, NBR seals, HL hydraulic fluid, external electronics.

Applications

Installation makes sense on lifting and clamping axes that have to be relieved in a fault. The small nominal step allows careful approach during commissioning. Because both pilot paths run internally, piping stays limited to the four main ports.

Manufacturer

Bosch Rexroth, material number R900973088. Characteristic curves, step responses and installation dimensions are given in data sheet RE 29115 on the pilot-operated proportional directional valve, the series overview in RE 07600-B.