Proportional Directional Valve 4WRZE25W6-325-7X/6EG24N9EK31/F1D3V - Bosch Rexroth R978909693

Backed-up tank pressure can throw the pilot stage of a valve out of step. The 4WRZE25W6-325-7X/6EG24N9EK31/F1D3V therefore draws its pilot oil internally and returns it externally through a port of its own, while metering 325 l/min nominal flow.

Benefits

• Internal pilot supply with external return, tank pressure does not act on the pilot stage.
• 325 l/min nominal flow, up to 870 l/min maximum flow, operating pressure up to 350 bar.
• Built-in pressure reducing valve keeps pilot pressure independent of system pressure.
• Command value 4 to 20 mA on the on-board electronics, 24 VDC supply voltage.
• Spool symbol W6, three switching positions on four ports, ISO 4401-08-08-0-05.
• 20.76 kg, FKM seals, 7-pole connector (6 + PE) to EN 175201-804, UKCA conformity.

Application

The valve suits forming presses, stamping machines and heavy duty axes sharing a common return. The external pilot return needs its own unpressurised line to tank. FKM seals cover the hydraulic fluids released by the manufacturer.

Manufacturer

Bosch Rexroth, material number R978909693. Characteristic curves and installation dimensions are given in data sheet RE 29115.