Proportional Directional Valve 4WRZE10E85-7X/6EG24N9K31/F1D3V - Bosch Rexroth R900939930

A separate pilot oil circuit calls for a valve that draws and drains its pilot oil externally. This size 10 proportional directional valve is built that way and meters 85 l/min nominal flow at up to 315 bar operating pressure.

Benefits

• External pilot oil supply and external pilot oil return keep the pilot pressure clear of the main circuit.
• 85 l/min nominal flow, maximum flow 170 l/min, maximum operating pressure 315 bar.
• Command value 4 to 20 mA as an impressed current, 24 VDC supply through a 7-pole connector (6 + PE) to EN 175201-804.
• Spool symbol E, 3 switching positions, 4 ports, subplate mounting to ISO 4401-05-05-0-05.
• Weight 8.45 kg, FKM seals, rated for HL hydraulic fluid.

Applications

The design suits manifolds whose pilot oil comes from a dedicated pump or an accumulator. Pilot supply then stays available while pressure in the main circuit swings. A 4 to 20 mA current command also tolerates long cable runs between control cabinet and valve.

Manufacturer

Bosch Rexroth, material number R900939930, product family 4WRZ(E), UKCA conformity. Characteristic curves and installation dimensions are given in data sheet RE 29115, with an overview in RE 07600-B.