Proportional Directional Valve 4WRZE32W8-520-7X/6EG24K31/A1D3M - Bosch Rexroth R901183003

The analog outputs of common controllers deliver a voltage in the ±10 V range, and that is exactly the interface built into the 4WRZE32W8-520-7X/6EG24K31/A1D3M. This pilot-operated 4/3 directional valve turns the command value steplessly into flow of up to 520 l/min while withstanding an operating pressure of 350 bar.

Key benefits

• Command value ±10 V - connects straight to an analog output card, no signal converter needed.
• 520 l/min nominal flow at size 32 - laid out for large piston areas and fast strokes.
• External pilot supply with external drain - pilot pressure and pilot return are decoupled from the main circuit.
• Interface ISO 4401-10-09-0-05 - the standard size 32 hole pattern, subplate mounting without a special adapter.
• On-board electronics with a pressure reducing valve in the pilot circuit - steady pilot control up to full operating pressure.
• 43.35 kg, spool symbol W8 - NBR seals, hydraulic fluid HL, conformity UKCA SI2016/1091.

Technical data

Applications

The valve is used in forming presses, sheet metal lines and hydraulic test benches where motion is commanded from a PLC as a voltage value. Supply is 24 VDC through the 7-pole connector (6 + PE) to EN 175201-804. Because pilot oil is fed externally, control behaviour stays predictable even when system pressure swings widely.

Manufacturer

Made by Bosch Rexroth, material number R901183003. Data sheet RE 29115 describes curves and performance limits, while RE 07600-B places the valve within the hydraulic valve programme.