Proportional Directional Valve 4WRTE32E1-600L-4X/6EG24K31/A1M - Bosch Rexroth R900739977

Large power units often run a separate pilot pump so the pilot stage stays independent of working pressure. The 4WRTE32E1-600L-4X/6EG24K31/A1M is built for that case: pilot oil arrives externally, the pilot return leaves externally, and 600 l/min are controlled at up to 350 bar.

Benefits

• External pilot oil supply and external return separate the pilot stage cleanly from the 350 bar main circuit.
• Nominal flow of 600 l/min within a maximum flow of 1600 l/min in size 32.
• Spool position feedback with a plus or minus 10 V command closes the control loop without external sensors.
• 3 switching positions with spool symbol E1 across 4 ports, mounting pattern ISO 4401-10-09-0-05.
• 24 VDC through a 7-pole connector (6 + PE) to EN 175201-804, weight 37.34 kg.

Applications

The valve is intended for press lines, continuous casting plants and large test fields with central pilot oil supply. Because the pilot stage hangs on its own circuit, response time stays constant even when working pressure dips briefly. The medium is mineral oil of class HL with NBR seals.

Manufacturer

Bosch Rexroth, material number R900739977. The type code 4WRTE32E1-600L-4X/6EG24K31/A1M stands for size 32, spool symbol E1, 600 l/min and component series 4X.