Proportional Directional Valve 4WRZE25W6-220-7X/6EG24N9EK31/A1D3V - Bosch Rexroth R900717757

Cycle time on a large cylinder depends on the flow the valve can pass. This pilot-operated size 25 valve meters 220 l/min nominal flow at a maximum operating pressure of 350 bar, with spool position set from a ±10 V command value.

Advantages

• 220 l/min nominal flow on the ISO 4401-08-08-0-05 pattern, 870 l/min maximum flow.
• On-board electronics read the ±10 V command value directly, 24 VDC supply.
• Pressure reducing valve in the pilot stage, internal pilot oil supply with external pilot oil return.
• FKM seals for HL hydraulic fluid at up to 350 bar operating pressure.
• Connector, 7-pole (6 + PE) according to EN 175201-804, weight 21.75 kg.
• Concealed auxiliary actuation moves the axis without an electrical signal.

Applications

Used in presses, injection moulding machines, test rigs whose axes run from an analog loop. Spool symbol W6 works out of the centre position in both directions. Route the external pilot oil return separately to tank so that return line pressure stays clear of the pilot stage.

Manufacturer

Bosch Rexroth, material number R900717757. Genuine manufacturer part, no replica. Characteristic curves, connection diagram, mounting dimensions are given in data sheet RE 29115 and RE 07600-B.