Proportional Directional Valve 4WRZE32W8-520-7X/6EG24TK31/A1D3M - Bosch Rexroth R901141625

Control manifolds are rarely symmetrical. A dedicated pilot pressure source is often available while an extra drain line to tank is missing. The 4WRZE32W8-520-7X/6EG24TK31/A1D3M is configured for exactly that situation, combining an external pilot supply with an internal pilot return at 520 l/min nominal flow.

Key benefits

• External supply, internal return - one X line is enough, since the pilot return runs through the tank port of the main valve.
• 520 l/min at 350 bar - the full performance class of size 32, rated up to 1600 l/min by valve size.
• Command value ±10 V through on-board electronics - a voltage input from the controller without an intermediate amplifier.
• Spool symbol W8, 4 ports, 3 switching positions - spool design with repeatable metering edges.
• 43.25 kg on ISO 4401-10-09-0-05 - fits existing sandwich plates and size 32 manifolds.
• Supply 24 VDC, 7-pole connector (6 + PE) to EN 175201-804 - one cable for operating voltage and command value.

Applications

This pilot routing is typical for retrofitted manifolds where a pilot circuit already exists but the drilling pattern for a second return line does not. Applications include presses, test rigs and lifting gear with large cylinders. NBR seals and hydraulic fluid HL are specified, and EMC is covered by UKCA SI2016/1091.

Manufacturer

Made by Bosch Rexroth, material number R901141625. Permissible pilot pressures and curves are listed in data sheet RE 29115, supplemented by RE 07600-B.